[Q] Iconia500 shows white power light but no screen or vibrate - Acer Iconia A500

My old charger for the Iconia 500 broke and I got a replacement charger (not acer). When it came the iconia was already completely drained. I plugged it in, charged it, and since then the only thing that happens is this:
- I push power and after about 3s it turns white. Nothing happens on the screen, no vibration, nothing.
- I can turn the power back off by holding the button for 5s.
> I have tried holding the button longer but no difference.
> From what I have read I suspect it might somehow have gotten into APX mode?
> I have tried to read through the numerous posts on this forum but cannot quite find this same problem/am overwhelmed by the lingo.
> I have tried to connect the tablet to my PC with a microSD cable, and it lists it as APX, category unknown, APX doesn't have a driver
- Can anyone confirm/suggest what might be wrong with my tablet?
- Is this something that can be fixed at a repair shop?
- Is this something I could fix? (I have no ID's or codes for the tablet, have never played with APX mode before)
Thank you for any advice!
- Chris

CKM80 said:
My old charger for the Iconia 500 broke and I got a replacement charger (not acer). When it came the iconia was already completely drained. I plugged it in, charged it, and since then the only thing that happens is this:
- I push power and after about 3s it turns white. Nothing happens on the screen, no vibration, nothing.
- I can turn the power back off by holding the button for 5s.
> I have tried holding the button longer but no difference.
> From what I have read I suspect it might somehow have gotten into APX mode?
> I have tried to read through the numerous posts on this forum but cannot quite find this same problem/am overwhelmed by the lingo.
> I have tried to connect the tablet to my PC with a microSD cable, and it lists it as APX, category unknown, APX doesn't have a driver
- Can anyone confirm/suggest what might be wrong with my tablet?
- Is this something that can be fixed at a repair shop?
- Is this something I could fix? (I have no ID's or codes for the tablet, have never played with APX mode before)
Thank you for any advice!
- Chris
Click to expand...
Click to collapse
Hi chris, yes you are stuck in apx mode.
To fix this you must have your tabs CPUID.
The easiest way is from an old nandroid backup, thats if you have one. If you do, look in the cwm backup folder under cpuid.txt
If you dont have a backup, your only chance is thru ubuntu. There is a guide by "srbeen" stickied in the General forum.
If you can retrieve yr cpuid, post back here and we can help u get fixed. YoU will need anutha file to do this tho'. Its called babsector.rar and you can download it in post 2 in the root guide in my sig.
You will also need a rom to flash - only ICS or JB.
To summarise,
1. Retrieve the cpuid/sbk
2. Once you have that then
3. Download babsector and a rom.
4. Come back here for unbricking help.
Good luck with the cpuid/sbk, without it you can do nothing.
dibb

Thanks for your reply and your advice! It is nice to have the confirmation about what the problem is, and a step by step guide to start tackling it. I feel a bit less lost now I'm going to try to follow your steps and will let you know if I get stuck anywhere.
- Chris

next steps?
Ok, so somehow (a miracle I guess) I managed to do your steps:
- installed ubuntu
- followed srbeen's steps upto the point where I got my CPUID
- got my SBK
- downloaded babsector.rar (luckily chrome offered to translate the russian site I found it at)
- unrarred it
- downloaded a ROM from http://forum.xda-developers.com/showthread.php?t=1935582 (is this an appropriate ROM?)
- unzipped the ROM and copied it to the external micro SD card
Can you point me in the right directions for the next steps?
Thanks,
Chris
dibb_nz said:
Hi chris, yes you are stuck in apx mode.
To fix this you must have your tabs CPUID.
The easiest way is from an old nandroid backup, thats if you have one. If you do, look in the cwm backup folder under cpuid.txt
If you dont have a backup, your only chance is thru ubuntu. There is a guide by "srbeen" stickied in the General forum.
If you can retrieve yr cpuid, post back here and we can help u get fixed. YoU will need anutha file to do this tho'. Its called babsector.rar and you can download it in post 2 in the root guide in my sig.
You will also need a rom to flash - only ICS or JB.
To summarise,
1. Retrieve the cpuid/sbk
2. Once you have that then
3. Download babsector and a rom.
4. Come back here for unbricking help.
Good luck with the cpuid/sbk, without it you can do nothing.
dibb
Click to expand...
Click to collapse

Next steps?
Hi dibb_nz (and others)
I am still stuck. I have been trying several things, but none worked so far.
- I think the drivers are installed properly. When I go to device manager it lists APX under unspecified device - with Acer USB Boot recovery Driver installed under the hardware tab. It also says Model: APX, Category: Unknown
- I tried to run babsector, and it gives me an error. Before giving me the error it does get my tablet to show the text "Entering Acer Download Mode" in the topleft corner. Then I get the error "failed executing command 16 NvError 0x120002, command failure: create failed (bad data)" in the attached image.
- I also tried to follow the steps in Timmy Dean's V4 post, since I hoped maybe that would help, but that also gave me an error. (Red letters saying it failed, and to follow the steps again and try again).
I feel once more defeated, and hope you know what to do next.
- Chris
dibb_nz said:
Hi chris, yes you are stuck in apx mode.
To fix this you must have your tabs CPUID.
The easiest way is from an old nandroid backup, thats if you have one. If you do, look in the cwm backup folder under cpuid.txt
If you dont have a backup, your only chance is thru ubuntu. There is a guide by "srbeen" stickied in the General forum.
If you can retrieve yr cpuid, post back here and we can help u get fixed. YoU will need anutha file to do this tho'. Its called babsector.rar and you can download it in post 2 in the root guide in my sig.
You will also need a rom to flash - only ICS or JB.
To summarise,
1. Retrieve the cpuid/sbk
2. Once you have that then
3. Download babsector and a rom.
4. Come back here for unbricking help.
Good luck with the cpuid/sbk, without it you can do nothing.
dibb
Click to expand...
Click to collapse

CKM80 said:
Hi dibb_nz (and others)
I am still stuck. I have been trying several things, but none worked so far.
- I think the drivers are installed properly. When I go to device manager it lists APX under unspecified device - with Acer USB Boot recovery Driver installed under the hardware tab. It also says Model: APX, Category: Unknown
- I tried to run babsector, and it gives me an error. Before giving me the error it does get my tablet to show the text "Entering Acer Download Mode" in the topleft corner. Then I get the error "failed executing command 16 NvError 0x120002, command failure: create failed (bad data)" in the attached image.
- I also tried to follow the steps in Timmy Dean's V4 post, since I hoped maybe that would help, but that also gave me an error. (Red letters saying it failed, and to follow the steps again and try again).
I feel once more defeated, and hope you know what to do next.
- Chris
Click to expand...
Click to collapse
OK< there is a slim chance u may be able to recover your tab.
There is a bct error - usually only one tool can repair this.
Download the apxflash tool.
Power your tab off.
Enter apx mode via the buttons - DO NOT use the tool to do this -
Connect your usb cable.
Run the tool - choose to go to the bundle market and download bundle 17.
If the apx driver has loaded and is showing in device manager then continue with the apx flash tool -
You will eventually see a window asking whether to dump and save yr bct, choose yes.
Hopefully the tool will carry on with the flash, once thats done, boot straight to recovery, complete the wipes and formats and then flash your rom.

I have done the steps below.
Just to make sure, when you are talking about the APX drivers being loaded, do you mean the one I see when I go to devices, right click on APX, choose hardware, where it says "ACER USB Boot-recovery driver" under device functions?
So when I tried to dump my own it gave me the following error (attached as image):
Unhandled exception, could not find file bct.dec.
It gave me the option to try to continue anyway, which I tried, but now it has been hanging in the screen "staging and backing up BCT, Using default BCT" for a long time...
so, does this mean it really is dead? And if so, what part of the tablet is dead? And if not (*hope*), then what else can I try?
Thanks,
Chris
ps. my tablet was never rooted, so I don't know if that complicates the matter... it does say that it needs to have been rooted to choose the dump option. Moreover, I never was able to turn USB debugging on, because I don't have access to the tablet. It does nothing besides black screen and occasionally the "Enter download mode" (but not with these steps)
dibb_nz said:
OK< there is a slim chance u may be able to recover your tab.
There is a bct error - usually only one tool can repair this.
Download the apxflash tool.
Power your tab off.
Enter apx mode via the buttons - DO NOT use the tool to do this -
Connect your usb cable.
Run the tool - choose to go to the bundle market and download bundle 17.
If the apx driver has loaded and is showing in device manager then continue with the apx flash tool -
You will eventually see a window asking whether to dump and save yr bct, choose yes.
Hopefully the tool will carry on with the flash, once thats done, boot straight to recovery, complete the wipes and formats and then flash your rom.
Click to expand...
Click to collapse

CKM80 said:
I have done the steps below.
Just to make sure, when you are talking about the APX drivers being loaded, do you mean the one I see when I go to devices, right click on APX, choose hardware, where it says "ACER USB Boot-recovery driver" under device functions?
Click to expand...
Click to collapse
yep thats correct
So when I tried to dump my own it gave me the following error (attached as image):
Unhandled exception, could not find file bct.dec.
It gave me the option to try to continue anyway, which I tried, but now it has been hanging in the screen "staging and backing up BCT, Using default BCT" for a long time...
Click to expand...
Click to collapse
Do you have the latest version of the apxflash tool....as far as I know, this is the ONLY way to fix a bct error....
So if you try and save yr tabs bct but you get the error and if u try to continue it just hangs???
The only thing I can suggest now is to power off both devices and then power on. When u get to the bct option try the default option first if it still hangs, power everything down again and this time try saving the bct again. Not much help I'm afraid, sometimes the tools do get stuck, and its best to power down and try again.
so, does this mean it really is dead? And if so, what part of the tablet is dead? And if not (*hope*), then what else can I try?
Click to expand...
Click to collapse
I hope not!! If the tool insists on hanging, you can TRY the babsector file, post an error if you get one. Its in the root guide in my sig, along with instructions for use
good luck
dibb
EDIT: Added attachment apxFlash Tool v1.1.1 @CKM80

Well, I am trying to again with the default option, but it has been saying "Flashing bootloader (EBT) stage two - uploading image" for 45 minutes now, while another nvflash.exe window that popped up says "nvflash started, [resume mode]"
The tablet says "Acer Iconia APX mode" in the topleft.
I am not sure if it is doing something still (after 45 min) or that it is hanging.
I will let it sit a while longer, and if it doesn't work I will try all options again.
Will keep you posted.
Chris
dibb_nz said:
yep thats correct
Do you have the latest version of the apxflash tool....as far as I know, this is the ONLY way to fix a bct error....
So if you try and save yr tabs bct but you get the error and if u try to continue it just hangs???
The only thing I can suggest now is to power off both devices and then power on. When u get to the bct option try the default option first if it still hangs, power everything down again and this time try saving the bct again. Not much help I'm afraid, sometimes the tools do get stuck, and its best to power down and try again.
I hope not!! If the tool insists on hanging, you can TRY the babsector file, post an error if you get one. Its in the root guide in my sig, along with instructions for use
good luck
dibb
EDIT: Added attachment apxFlash Tool v1.1.1 @CKM80
Click to expand...
Click to collapse

CKM80 said:
Well, I am trying to again with the default option, but it has been saying "Flashing bootloader (EBT) stage two - uploading image" for 45 minutes now, while another nvflash.exe window that popped up says "nvflash started, [resume mode]"
The tablet says "Acer Iconia APX mode" in the topleft.
I am not sure if it is doing something still (after 45 min) or that it is hanging.
I will let it sit a while longer, and if it doesn't work I will try all options again.
Will keep you posted.
Chris
Click to expand...
Click to collapse
sorry m8, missed your post...did u try the flash tool version i posted??
Have u tried the babsector file??? I'd be tempted to run that but from what you have said its sounding like a hardware failure....babsector will tell you tho
Hang in there and hopefullly we can have it resolved one way or another!
dibb

Hi Dibb_nz,
I did try... the flashing never worked, always stopped.
Babsector gave the attached error,
Chris
dibb_nz said:
sorry m8, missed your post...did u try the flash tool version i posted??
Have u tried the babsector file??? I'd be tempted to run that but from what you have said its sounding like a hardware failure....babsector will tell you tho
Hang in there and hopefullly we can have it resolved one way or another!
dibb
Click to expand...
Click to collapse

CKM80 said:
Hi Dibb_nz,
I did try... the flashing never worked, always stopped.
Babsector gave the attached error,
Chris
Click to expand...
Click to collapse
oh right. the bct thing...thats a bumma m8, wish I could suggest something for ya, but my bag of tricks is empty
All I can tell u is that 'sometimes' after trying wot seems everything a hundred tries or more, something finally happens and it works...this doesn't mean you do not have a faulty memory chip, as this is just what happens...you could try it next week and it may well work....no consolation I know...
You might wanna try a friends computer (specially if they do not have win8!!) you neva know yr luck!!

Yeah, I think I'll try a couple of times, but I am pretty much ready to give up.
Thanks for all your tips along the way.
- Chris
dibb_nz said:
oh right. the bct thing...thats a bumma m8, wish I could suggest something for ya, but my bag of tricks is empty
All I can tell u is that 'sometimes' after trying wot seems everything a hundred tries or more, something finally happens and it works...this doesn't mean you do not have a faulty memory chip, as this is just what happens...you could try it next week and it may well work....no consolation I know...
You might wanna try a friends computer (specially if they do not have win8!!) you neva know yr luck!!
Click to expand...
Click to collapse

Related

[Q] Probelm installing v3 bootloader/recovery

I'm having a problem using the following guide, and I can't seem to find anyone asking the same question...
http://forum.xda-developers.com/showthread.php?t=1622425
Following all the instructions, at step 3 in the directions, I get all the info from checking my SBK number, however the last two lines read: file not found bootloader.img, command failure bootloader download failed.
As there was no bootloader.img and I couldn't find any info on such a file, I pushed ahead, thinking this was common.
I can get into APX mode without issue, its the following steps where I seem to have a problem.
Using the first method listed in step 6, I am never prompted with a "press any key to continue", it just launches straight into attempting the install, and freezes installing (I forget the exact file name but I believe it's the bootloader, it is right in the beginning) it stalls at 131702/78908 (I think those numbers are right)
Using blackthun3r's tool renders the same result. I've tried everything can't figure it out.
I am on a stock 033.00_PA_CUS1 rooted using blackthun3r's tool, which worked perfectly...
Also, I never see the tab entering download mode when in APX it just sits with a black screen.
Anyone have any clue where I'm going wrong here?
Are APX/Download mode drivers installed properly
killdevilfalls said:
I'm having a problem using the following guide, and I can't seem to find anyone asking the same question...
http://forum.xda-developers.com/showthread.php?t=1622425
Following all the instructions, at step 3 in the directions, I get all the info from checking my SBK number, however the last two lines read: file not found bootloader.img, command failure bootloader download failed.
Click to expand...
Click to collapse
the most important thing at step 3 is having the tool "see your uid" the rest...dont worry about.....
I can get into APX mode without issue................
............Also, I never see the tab entering download mode when in APX it just sits with a black screen.
Click to expand...
Click to collapse
ok, you must ensure the apx/download mode drivers are installed.
For your tab to enter download mode it needs the apx drivers...you should see the windows new hardware wizard installing them, and check out the guide again there's a picture of where to look for them in Device Manager....
Yes APX mode is a black screen AND the white led is lit on the power button.
with the apx flash tool, did you install the .apx files from the guide?
thats about all i can offer, dont know anything about step 6.
just make sure u have the boot/recovery aka apx aka download mode drivers installed and installed correctly...good luck
Right Driver
The driver listed when I connect the device in ATX mode is "Acer USB Boot-recovery driver"... is this the correct ATX driver or is there another, as the image shows "Acer Picasso USB-Boot-recovery driver"
killdevilfalls said:
The driver listed when I connect the device in ATX mode is "Acer USB Boot-recovery driver"... is this the correct ATX driver or is there another, as the image shows "Acer Picasso USB-Boot-recovery driver"
Click to expand...
Click to collapse
That, is a very good question!!! I dont know whether there is a dedicated APX driver or whether its a generic term for the 'Picasso' drivers as seen in the image.
All I know is that if these 'boot/recovery' Drivers are not installed then the flash wont work. Keep in mind too, that these nvflash methods are fairly new to most of us, so we're all on a steep learning curve -
I'd suggest going thru the process again, write out each step in your own words if you need to, and take your time - it can be difficult relating the instructions your eyes see on screen with what your fingers are tapping out on the keyboard AND having your head trying to make sense of it all!!! Pick one of the methods, it doesn;t matter which, and stick with it - switvhing between 2 or more can make things even more confusing....
I;m about to go on try civs method now, will let u know how i go
***************************************
UPDATE
steps 1-2-3 check
on getting into apx mode noticed driverrs didnt install
but checked dev man and they were listed as Acer not picasso
ran nvflash
entered 1
entered sbk
command window says nvflash starting.......
that was it couldnt get any further....no entering download mode on tab
uh-oh -
***************************************
Yes- there is a dedicated APX Driver
***************SUCCESS***********
What a mish!!!! Got it going on the 5th time.....flashing r14 as i write...woohoo!
If I knew how to post images then I would...took screenies all the way thru.
Reinstalled all drivers after the first fail.
On next start found new hardware wizard wanted to install drivers for APX!!!!
I have never seen that before
After poking around a bit got them installed with...wait for it...under adb???
They installed as Acer "FastBoot Interface".....
It never showed in my system tray or as Picasso USB etc....in dev man
my next try failed again....waiting for tab to enter download mode......
For my last go at for the nite I bbutton comb'ed to APX first a
nd connected cable 2nd.....within a minute or two Acer Logo on tab
followed by :"entering download mode....within 10 mins I was good to go......
All I can tell you is to keep trying till u get it!!!!!
Probelm installing v3 bootloader/recovery
I have the same problem tried everything your not the only one.
shenny585 said:
I have the same problem tried everything your not the only one.
Click to expand...
Click to collapse
Driverz reinstall them......each time u attempt a flash and it fails at some point, you must reinstall them.
After poking around a bit got them installed with...wait for it...under adb??? They installed as Acer "FastBoot Interface"..... It never showed in my system tray or as Picasso USB etc....in dev man my next try failed again....waiting for tab to enter download mode...... For my last go at for the nite I bbutton comb'ed to APX first a nd connected cable 2nd.....within a minute or two Acer Logo on tab followed by :"entering download mode....within 10 mins I was good to go....
Click to expand...
Click to collapse
If they don't show up in either device manager (under adb/apx or USB controllers) or the system tray "safely remove h/ware then they are not installed, if u continue with flash and it fails then u have to reinstall Acer drivers again!!!
install a500 boot manager u can check for a proper connection with this tool....
See link in my sig for a pictorial showing step by step instructions for using apxflash tool
If this still does not work then post back with the following:
What rom and bootloader u have now or began with
What rom u installed at step 4
R u rooted and do u have a custom recovery installed
On validating yr sbk, at step 3, the most important thing here is to see the system info in the command window,
Boot.img errors u see at the end IS A NORMAL PART OF THE VALIDATION in other words its what you're supposed to see. Correct me if I'm wrong but at that command window aren't u supposed to type: go

[Solved] Mystery bricked tablet. Black "android systems" screen

I bought an Acer a500 tablet a few days ago not knowing how broken it is.
After loads of research and attempting different techniques I still haven't had any progress.
The software issue:
When booting up the tablet, it goes to the black screen with "android system" at the top and power off/ shutting down in the middle of the screen.
Fixes I've tried:
1.
Since I don't know anything about what operating system is on this tablet, I have been blindly flashing different "stock" (from Vache) versions of HC.
--The android logo with gears shows up, the green bar loads but freezes when it gets 1 cm away from finishing.
--After turning off the tablet and booting it up again, "updating bootloader shows up on the upper left hand corner of the screen. Then a message pops up saying "apk installer: all pre processes complete". Then it returns to the black screen.
2.
The tablet will not go into apx mode (using the reset botton at the bottom).---Fixed. I didn't execute the steps properly. Apx mode works fine.
3.
I plugged the tablet into an older windows laptop and the computer could not install the correct drivers to sync with the tablet. Again also my lack of knowledge. I installed drivers from Acer.com
4.
These two guides seem to be exactly what my problem is but I can't seem to make sense of them:
http://forum.xda-developers.com/showthread.php?p=24531880#post24531880
http://forum.xda-developers.com/showthread.php?t=1572622
This is as far as I've gotten.
Other complications:
--The battery is dead. I have to use it while plugged in by the charger.
--Most of the thread that I have looked at use Megaupload as the source of downloading their files.
--The original owner of the tablet will not help me out. As I stated before, I don't know what version android OS was on here before it was bricked and on top of that the original owner won't answer my questions. As far as I know though, this tablet is not rooted or has anything "non-OEM" installed in it. The story goes that this tablet was bricked when the owner tried to "update" it. Before that, it was functioning perfectly.
-----It looks like Darvis is having the same issue and frustrations I'm having but reading his threads makes me think that this tablet is a dead end.
http://forum.xda-developers.com/showthread.php?t=1427983&page=4
http://www.androidtablets.net/forum...32467-please-help-me-unbrick-my-iconia-5.html
If someone could point me in the right direction toward fixing this tablet, I would appreciate it very much.
Thank you for reading my Thread.
KiwiN said:
http://forum.xda-developers.com/showthread.php?t=1572622
Click to expand...
Click to collapse
First off......I hope u didn't pay much for the tablet.
Secondly the guide above looks pretty straight forward but maybe this is one of the ones that has files at megaupload?
I know that the ra recovery and timmydean's files are accessible as I have downloaded both of them.
Maybe someone who has done this previously will chime in and get you the other file if it is indeed unreachable.
Sent from my A500 using xda premium
I would suggest trying to connect the tab to a Windows 7 PC after installing the USB drivers from ACER. Then check if your device appears in the device manager. As long as you have its UID you can flash the tab from the PC with one of the EUU tools - check my signature on "how to revert to 3.0.1" or TimmyDean's thread which offers an EUU with rooted HC 3.2.1 (it's linked in my thread as well).
How exactly did you try to get into APX mode?
p.s. I have the EUU files if you can't access them from the threads links. I can send them to you.
getting into apx mode
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen. My computer responds by saying that it is "installing drivers" but it "fails to install drivers". At the same time I have the DND.exe open and it does not recognize my tablet.
I'm trying to follow the instructions from the root 3.2.1 v4 file.
I can't perform the first step where it instructs me to turn on Usb debugging. The problem is that I can't open the settings by clicking the clock. Nothing happens.
I realize that one complication of my tab is that it will not charge. The battery power is below 15% so none of these fixes might not be effective for me. That might be the ultimate problem?
CyaN1de-
I paid $100 for the tablet. As of this moment I feel like I paid too much.
Thank you both for you quick replies. I have to say that most of the problems that I'm having is because of my lack of experience but I'm learning. I hope I fix this tab soon.
if this dont fix it, i'll give you what you paid for it;0
someone posted a while back that a hard reset fixed the android systems screen error
not sure where you're at now but no harm in trying it
Try using hard reset:
1) Turn off your tablet,
2) Rotation lock s to your left;
3) Press Vol+ (which is next to rotation lock) and power on simultaneously
4) As soon as the tablet vibrates you can release the power on button and you
should start to switch rotation lock left and right till you see
Erasing Userdata...
Erasing Cache...
Vol+ is still pressed;
5) The tablet starts to format
6) Your tablet will be as clean as it can be.
Thanks for the suggestion but I didn't accomplish anything by hard resetting it. I've done this many times and nothing has changed.
I haven't given up on unbricking this tablet yet and even though it's frustrating I'm learning from the process. If I decide to sell it, I'll contact you Dibb.
KiwiN said:
.....
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen. My computer responds by saying that it is "installing drivers" but it "fails to install drivers". At the same time I have the DND.exe open and it does not recognize my tablet.
Click to expand...
Click to collapse
i've seen the 2 methods u described but i've not seen anyone else have success with it apart from the OP'ers - seems OTT to me but hey if it works for ya...
I've used timmydeans method ALOT on HC it never failed to work and that includes reverting back to HC from ICS - if it doesnt work for your issue then id be tempted to use blackthund3rs APXFlash Tool and civato's HC_ICS_Bootloader zip to flash a new bootloader and rom package on yr tab - but for the moment we'll run with td'sv4 - if drivers fail to install then believe me, its a good sign
try this:
I know you-ve probly done it but u need to do it again:
reboot everything, then reinstall acer drivers (yeh i know)
fire up ya tab but dont connect to yr pc just yet -as you said you
doubt usb debugging in enabled so we'll try another way around it
run the prgb20.exe it will scan for the new image but not find it becos youre disconnected...thats good....
after maybe 5 -7 minutes of scanning for the new image - it will show a
window "cannot detect yr iconia tab"
and instructions for getting into apx mode - go ahead connect usb put the tab into apx BUT don't click next until....
the drivers will try to install, dont let windows search but let me choose
(off memory) choose device and adb or android ph should show up here
the acer boot/recovery drivers should install...maybe even under USB Controllers
once they do and only when they do click next to put tab into:
acer download mode.......
as i said this is worth a go,,,,how about the update.zip have u tried that.....
else the only other way i know is apx flash....ya still need to get into apx
mode and if u cant then ???? sometimes youll try something over and over
and then out of the blue it will work...you'll swear you never did anything different , it jsut worked this time.....
hope you find some joy
Thanks Dibb for your words of wisdom. I've put it aside for now but I'm going to pick it up in the morning.
As addition to what dibb_nz said - Windows 7 would do the trick - I'm almost 100% sure you'll be able to connect in APX mode with the drivers properly installed. Then use one of the EUUs.
Drained battery really looks like the ultimate problem now because as far as I know you cannot charge the tab in APX mode - haven't tried that. Eventually I would suggest to crack the tab open, remove the battery and charge it somewhere - I don't know alternative ways but...may be another tab or you own charger with proper connector ...
http://www.youtube.com/watch?v=xvXihNIdQ1M
p.s. 15% power ... seems enough to flash through the PC...but who knows - don't waste them and get everything you need before starting the procedure.
no probs m8 hope u have better luck tomorrow
if u wanted to try the EC method i have those files if you want them
good luck m8
dibb_nz said:
if drivers fail to install then believe me, its a good sign
try this:
I know you-ve probly done it but u need to do it again:
reboot everything, then reinstall acer drivers (yeh i know)
fire up ya tab but dont connect to yr pc just yet -as you said you
doubt usb debugging in enabled so we'll try another way around it
run the prgb20.exe it will scan for the new image but not find it becos youre disconnected...thats good....
after maybe 5 -7 minutes of scanning for the new image - it will show a
window "cannot detect yr iconia tab"
and instructions for getting into apx mode - go ahead connect usb put the tab into apx BUT don't click next until....
the drivers will try to install, dont let windows search but let me choose
(off memory) choose device and adb or android ph should show up here
the acer boot/recovery drivers should install...maybe even under USB Controllers
once they do and only when they do click next to put tab into:
acer download mode.......
hope you find some joy
Click to expand...
Click to collapse
So I went through all these steps and the TD's V4 tool finishes updating the tab. But then it continues to the same black, android systems screen. And afterwards the tablet won't connect with the computer.
I am currently downloading the update.zip so i'm going to see if that will work.
KiwiN said:
So I went through all these steps and the TD's V4 tool finishes updating the tab. But then it continues to the same black, android systems screen. And afterwards the tablet won't connect with the computer.
I am currently downloading the update.zip so i'm going to see if that will work.
Click to expand...
Click to collapse
do u get on yr tab the big 'PASS' in white leetters or "entering download mode" at all???
think we're beyond update.zip if EUU failed but you can try it -
you can get to apx which is a start - getting a new boot/recovery image on there is the main priority I think...as i posted earlier i've only ever seen a fix for this problem work for 2 people, so on new ground here....
But anyway check out the APXFlash method/walkthru in my sig....all the info is in there and the links to the required files ....do we know if you're on HC or ICS B/L????
I got the word pass; now using recovery mode to flash a rom.
not sure which bootloader I have.
I am using:
Acer_A500_7.006.01_COM_GEN2: http://vacheandroid.com/files/Acer_...1_COM_GEN2.zip
But after it says install from sdcard complete it also give me the message:
E: Can't mount/ dev/block/mm....
E: Can't mount Cache: recovery/log
E: can't mount open cache: recovery/log
E: Can't mount /dev/block/mm...
found this:
dibb_nz said:
yes if you're talking about the stock roms from vaches thread, you need the full rom package - you cant just use an 'update' package as they need a full rom to work properly....
for instance my original HC3.2.1 Stock build is 7.014.15_COM_GEN1
and theres no FULL Rom for 3.2.1, so i have to use the HC 3.2 FULL instead
.....Acer_A500_7.006.03_COM_GEN1.zip
Once flashed, thankfully I recieve the 2 small OTA Updates to get up to 3.2.1 again
Another couple of days the ICS OTA d/l'ed and installed with no probs....
is that clearer or am i making things worse????
Click to expand...
Click to collapse
What I've learned from this whole process is that all of the obstacles I'm facing are due to my lack of knowledge. Thanks for sticking with me Dibb. I can't thank you enough.
KiwiN said:
When I perform the steps (hold reset + power for 3 secs then release power); the tablet turns on as it usually does. It goes to the Acer screen, then android and back to the black home screen.
Click to expand...
Click to collapse
I could never get mine into apx mode with the usb cable plugged in. So try that if you haven't. And it is literally hold reset, then press power, without letting up on the reset, release the power button after 3 seconds (use a watch or timer!) then one more second before you release the reset... It does work, but the timing has to be close. It must have a tenth of seconds or less tolerance. Very picky... I've done it on 2 different a500s so far and I am heading to do another tonight. If it doesn't work I'll be right back!!!
KiwiN said:
I got the word pass; now using recovery mode to flash a rom.
not sure which bootloader I have.
I am using:
Acer_A500_7.006.01_COM_GEN2: http://vacheandroid.com/files/Acer_...1_COM_GEN2.zip
But after it says install from sdcard complete it also give me the message:
E: Can't mount/ dev/block/mm....
E: Can't mount Cache: recovery/log
E: can't mount open cache: recovery/log
E: Can't mount /dev/block/mm...
found this:
What I've learned from this whole process is that all of the obstacles I'm facing are due to my lack of knowledge. Thanks for sticking with me Dibb. I can't thank you enough.
Click to expand...
Click to collapse
Hi m8 Hwya goin - just got home - what's the lay of the land???
Holey motley we just had a good shake....thort was gonna carry on thank fk it stooped, phew, just been awhile since we had one like that, scary
Crikey just as I finished typing "....land"
Back to more important matters..... whr u at m8????
None of the roms I've tried to flash go to completion. I'm stuck at trying to flash different roms from recovery mode. Not much luck with what I've tried but I'm going to try more before I give up.
Are there any particular roms I should try more than once?
Or why am I getting the "error" messages stated earlier?
KiwiN said:
None of the roms I've tried to flash go to completion. I'm stuck at trying to flash different roms from recovery mode. Not much luck with what I've tried but I'm going to try more before I give up.
Are there any particular roms I should try more than once?
Or why am I getting the "error" messages stated earlier?
Click to expand...
Click to collapse
recovery mode???
u need a new boot and recovery image on that thing
the HC EUU based flash arent working even tho u got a PASS on screen after TDv4
So HC based methods arent up to it. You need nvflash/fastboot.
We need ICS with the unlocked bootloader it has access to another level below where HC worked because HC b/l is and always has been locked down.
If ICS cant fix it, I have no idea what will and my offer to buy is off the table!!!!
check out civatos guide and ready yourself for nvflash via zip files in that post or blackthund3rs APXflash tool, with a complete tutorial for using it, all links in my sig.
good luck
Just to chime in with a tip on getting google drivers to work.
When getting any device not recognized, or driver error, generally I go into windows device manager, select the unknown or offending device, update driver, only I choose which driver to use, and ignore the error message where it says "may not be compatible with your device", and use it anyhow.
I get that occassionally when swapping back and forth between devices.
Also, battery not charging and display errors, are usually a sign of EC Power control. So you were on the right track about that. Once you get a rom up and running, if the batt don't charge, then there are some EC flash's you can do from CWM.
Back at it again using BT's nvflash tool. And tablet is still bricked.
I've tried a few different bundles and none allow me to operate the tablet. Everything goes smoothly and I get "pass" at the end of the process. When I go to reboot the tablet, it gets stuck at the black start up screen.
Found another lead: http://forum.xda-developers.com/showthread.php?t=1579490
Sounds like he was in the same situation as I am but has a bit more skills and knowledge dealing with problem solving.
You say you were able to flash roms. So apparently recovery is working OK. Have you tried flashing civato's flexreaper? It has code that will detect whether you bootloader is HC or ICS. You may just be flashing a rom that doesn't match your bootloader... I know I'm jumping into the middle of this, but it's just a thought.
Also, when you did the hardware reset with the rotation lock switch did you get the confirmation that it was, in fact, being wiped?
Failing all that, I'd be willing to take it off your hands for spare parts...
Sent from my A500 using Tapatalk 2

Help not working iconia A500 after hard reset?

can some one help please. my son had put a password on my a500 and could not remember what it was, so used the buttons to do a hard reset and i got a error saying UNRECOVERABLE BOOTLOADER ERORR (0X19000008) and now it wont start and hangs on the acer logo.
its never being flashed with any rom or rooted,( never needed anything like that)
im quite new to all this guys and could with some help to fix it
mark845 said:
can some one help please. my son had put a password on my a500 and could not remember what it was, so used the buttons to do a hard reset and i got a error saying UNRECOVERABLE BOOTLOADER ERORR (0X19000008) and now it wont start and hangs on the acer logo.
its never being flashed with any rom or rooted,( never needed anything like that)
im quite new to all this guys and could with some help to fix it
Click to expand...
Click to collapse
ok i have flashed the a500 by this guied http://forum.xda-developers.com/showthread.php?t=1276227
all went well, the a500 restared and said please do not restart or reset. updae will finsh in the next 7mins.
and now the a500 is blinking on the andriod logo?
mark845 said:
ok i have flashed the a500 by this guied http://forum.xda-developers.com/showthread.php?t=1276227
all went well, the a500 restared and said please do not restart or reset. updae will finsh in the next 7mins.
and now the a500 is blinking on the andriod logo?
Click to expand...
Click to collapse
ok lets try this out,
power off your tab, hold the volume down and power button, continue holding both buttons until the tab load the acer logo. are you coming into recovery?
if so use the volume to go down to advanced, then wipe dalvic cache, then click yes, it will take a second or two. when the wipe is complete try goin back in the options to find reboot system. with any luck it may fix you
you should see a screen saying optimizing apps .
hope it helps :highfive:
scratch that^^ read your post abit more in depth and im assuming you must have recovery and have wiped dalvik while doin the above,.
try this method to install the v7 or v8 bootloader its the ics version and unlocked/patched im using v7 right now after i got a bootloop and error saying bootloader unverified.
http://forum.xda-developers.com/showthread.php?t=1622425
the area you wanna concentrate on is after step 6 do read the entire thread though and remember to always have your cpuid!!
ALL REPS GO TO CIVATO /BLACKTHUNDER THE A500 DEMI-GODS
Note: please read everything twice before performing any dangerous operations on your tab i will not be held responsible
STEP 6 INSTALLING ICS BOOTLOADER
Automated flashing tool
USING blackthund3r ATX flash tool , It makes it all a little easier !
You need help on this ! Here is a walk thru!
-download the APX-FLASH-Tool & Manager
-Download one of the V8 unlocked bootloader apx flash packages combined with a recovery of your choise.
V8-pubA50._public_recovery.a500apx
V8-Thor_1.7.3_recovery.a500apx
V8-TWRP_2.1.3_ICS_recovery.a500apx
- Firts you do the Steps 1-2-3- 4 of the main guide !!
-1-Reboot your tablet and make sure on your tablet: "Settings" -> "Applications" -> "Development" -> "USB debugging" switch on.
-2-Now start the "A500APXFlash.exe" , the tool will start .
-3-When it askes for your SBK you need to type it in , the v0.4 APX flash tool will give your SBK automaticly !!
-4-Now you select "Use an A500 APX Flash Tool Package.(.a500apx)
-5-Select the package that you want,(you click on the right arrow to continue)
-6-Now you can select "Manual Method" or "Automatic Method". (I always pick Automatic)
-7-Click on "Enter APX Mode" (now it will do his thing)
-8-When it says "Done! press to run again" (even if it says on the bottom of the app "no apx mode devices are connected") you click on the right arrow to continue.
-It will ask if you are ready (click yes if you are)
-Let the app do his thing and wait !!!!!! Until it says "Done! Press and hold power to switch off then power back on!"
Optional A500MANAGER
What does it do :
· One-click APX Mode entry
· One-click Recovery Mode entry
· One-click fastboot entry for patched bootloaders
· Instant logcat viewer
· Instant dmesg Viewer
· Function which dumps the dmesg to a text file on the desktop
· Serial number extraction to make SBK calculation exponentially easier
· Links to ICS Root, A500 APX Flash Tool and two download links (Acer and my mirror) for USB Drivers
· Shows what mode the tablet is in at the bottom
thanks for trying to help m8. the a500 does not turn on so how can i switch on usb debugging?
mark845 said:
thanks for trying to help m8. the a500 does not turn on so how can i switch on usb debugging?
Click to expand...
Click to collapse
erm well mate...u dont, you enter apx mode manually with the reset button and power button.
like i said read the whole thread buddy :silly:
Gotcha mate. So APX mode is like USB dubugging right?
Time to read.
Ill post back.
mark845 said:
Gotcha mate. So APX mode is like USB dubugging right?
Time to read.
Ill post back.
Click to expand...
Click to collapse
im not the best but from i know and understand =
apx mode is like the base programming/flashing state for making changes to your tabs guts/ loading software/os,.
usb debugging is for locating/extracting/uploading information to a system with already loaded software/os
you would need usb debugging to let the flashtool automatically set the tab into apxmode/ as doin it manually can be a hassle, but since you cannot turn usb debugging on to use that feature of the tool you should be ok to manually power into debugging and continue with the guide
tip: i learnt the 1-week till 3am way, you must have the usb plugged to enter apxmode.......or is it the other way around? or is it the charger? lol i cant remember srry
note: yes bruuu read, read, read, these steps are very dangerous to your tab if performed incorrectly. check everything, even look further down the threads to see what problems and solutions others have run into before flashing anything.
let us know how your doin and hopefully we're have it live n kicking again soon
ok im in APX mode. i start the manger and it asks for the SBK.
If i red this right the tool should get the sbk for me?
-3-When it askes for your SBK you need to type it in , the v0.4 APX flash tool will give your SBK automaticly !!
but the tool does not give me it?
-STEP 3=Now go to vache's site to get your SBK
you put your cpuid in and it gives you your sbk
these steps are further down the page (i know its set out weird)
How to get my CPUID ?
On HC Rom or HC bootloader (3.01) or you got a old nandroid backup do this to get your cpuid
-You can find your "cpuid" in one of your "nandroidbackups" that you made with cwm (look on your external SD/clockworkmod/backup=uid.txt ). It's the uid text you are looking for.
-Or when you connect your tablet and type in adb devices in cmd you get your cpuid
-Or usbdeview see more info here , thanks to dibb_nz
ON ICS ROM or ICS booloader (0.3.11 or 0.3.12) do this to get your cpuid:
Or you Install and launch Android terminal app on tablet. Run the following command: dmesg>/mnt/external_sd/dmesg.txt
Open up dmesg.txt (will be stored on your external SD) and look for androidboot.serialno. That is your CPUID.
Or try the following to get your cpuid (thanks to japinder)
-Reboot the Tab & just use the command 'dmesg | grep androidboot.serialno' (without quotes).
It displays the cpuid there & then. No extra lines, no need to save to file & then search. If the Tab hasn't been rebooted in a while, then the line containing 'androidboot.serialno' entry is lost/overwritten, so it won't even be there in the 'dmesg' output. Running the above command after a fresh reboot will always yield the result in an easier way.
so when you got your cpuid go to vache's site put it in and get your sbk, u can use the relative step in the thread to check your sbk is correct if you feel the need.
Enter it into the a500flash tool download a500
flashtool
click arrow
then select a ".a500apx" package u can get one here : skrillax BL's
Im using the v7
click arrow the tool should then do its thang! when it says pass/complete/get me a beer just restart your tab and it should be good to go.,
these are the steps i took on my tab when i had a unverified bootloader error and it fixed it all for me,... but i can not be taken responsible .....your tabs not working anyways so eh lol
Thanks for all your help.
Looks like its just a brick as i have no backups what so ever and it's never being rooted and it won't boot what so ever :crying:
Thanks mark
but it should work with the guide above?
after everything if you dont want it ill take it off your hands or a good price?
I really would like to get this up and running again but i just can't see how. Ive spent the last two days reading as many threads as i can and i can't see any way to fix this and it's doing my head in........
Keep reading on......
Do i still need my cpuid if I'm downgrading to a stock rom?
mark845 said:
Do i still need my cpuid if I'm downgrading to a stock rom?
Click to expand...
Click to collapse
its always good to have cpuid, and i dont think you can go back to stock rom unless you follow the guide and get recovery

Cant Flash Custom Bootloader/Recovery on A500 (ICS OTA 4.0.3)

So ive been trying for almost a week now trying to put a custom ROM on my Acer Iconia A500, but my tablet doesnt want to do cooperate. I have tried EVERYTHING, from using blackthunders APXFlash tool to NvFlash and everything. My problem is my computer will pick up my tablet once its in APX mode. I go to my "Devices and Printers" and under everyting it has a picture of a object and under it, it says "APX". Also in the bottom right corner of laptop theres the "Usb" icon and if i click on it, it says "Eject APX", so i know my computer knows what it is. but no matter WHAT program i use, my A500 never gets any white text on it when its trying to go into the bootloader or anything. i can only get to the point where my device is in APX mode.Nothing seems to work AT ALL. And all the programs get to the point of trying to flash the bootloader and thats it. They just stop working or cant go any further for some reason. I also deleted my "boot.p" file in /system as well. I got my CPUID, i got my SBK, i got all of that using Afterota program. My tablet IS ROOTED. So im stuck right now. Tablet runs fine and good. Just dont wanna give up and really needing some help. Heres my tablet info:
Tablet Cpuid : 037C61C9408103D7
Tablet Sbk : 0xE4531F00 0x18070000 0xF74EE402 0x11DE2003
Android Build : Acer_AV041_A500_1.033.00_PA_CUS1
Bootloader : 0.03.12-ICS
I also tried downloading the "babsector.rar" file from the russian website and it says the file was removed, id SO GREATLY appericate it if someone who has it could re-upload it somewhere else or gimme a good working downloading link for it. One again please help me out if you have ANY suggestions or know how to fix my issue. THANKS
RECKLESS PAIN said:
So ive been trying for almost a week now trying to put a custom ROM on my Acer Iconia A500, but my tablet doesnt want to do cooperate. I have tried EVERYTHING, from using blackthunders APXFlash tool to NvFlash and everything. My problem is my computer will pick up my tablet once its in APX mode. I go to my "Devices and Printers" and under everyting it has a picture of a object and under it, it says "APX". Also in the bottom right corner of laptop theres the "Usb" icon and if i click on it, it says "Eject APX", so i know my computer knows what it is. but no matter WHAT program i use, my A500 never gets any white text on it when its trying to go into the bootloader or anything. i can only get to the point where my device is in APX mode.Nothing seems to work AT ALL. And all the programs get to the point of trying to flash the bootloader and thats it. They just stop working or cant go any further for some reason. I also deleted my "boot.p" file in /system as well. I got my CPUID, i got my SBK, i got all of that using Afterota program. My tablet IS ROOTED. So im stuck right now. Tablet runs fine and good. Just dont wanna give up and really needing some help. Heres my tablet info:
Tablet Cpuid : 037C61C9408103D7
Tablet Sbk : 0xE4531F00 0x18070000 0xF74EE402 0x11DE2003
Android Build : Acer_AV041_A500_1.033.00_PA_CUS1
Bootloader : 0.03.12-ICS
I also tried downloading the "babsector.rar" file from the russian website and it says the file was removed, id SO GREATLY appericate it if someone who has it could re-upload it somewhere else or gimme a good working downloading link for it. One again please help me out if you have ANY suggestions or know how to fix my issue. THANKS
Click to expand...
Click to collapse
First of all thanks for an informative post!! I wish everyone gave as much info as you One thing you didn't mention was which PC OS you are using - 32bit are best
My problem is my computer will pick up my tablet once its in APX mode. I go to my "Devices and Printers" and under everyting it has a picture of a object and under it, it says "APX". Also in the bottom right corner of laptop theres the "Usb" icon and if i click on it, it says "Eject APX", so i know my computer knows what it is.
Click to expand...
Click to collapse
Right, everything is in order here, you're seeing exactly what you are supposed to
So now we need to know "what" doesn't "work".
The babsector file is best for trouble shooting as it will always post some sort of output. Its in post2 of the root guide in my sig.
1. Put your tab in apx mode and connect your "micro usb cable" to your pc
2. Run the first .bat file of babsector.
Now what exactly happens next, can you post a screenshot?
Can't help much further until you do this!!
If the first .bat file runs ok, you need to boot directly to cwm which babsector has just flashed.
Do a nandroid backup and then
a complete wipe including /data/media - you need to go in and specifically enable this from the 'mounts' menu. Wipe davlik and cache too.
Now flash your custom rom and power down.
Back into apx mode and run the 2nd .bat file.
Reboot and voila! you should be all good - fingers crossed!!!
dibb_nz said:
First of all thanks for an informative post!! I wish everyone gave as much info as you One thing you didn't mention was which PC OS you are using - 32bit are best
Right, everything is in order here, you're seeing exactly what you are supposed to
So now we need to know "what" doesn't "work".
The babsector file is best for trouble shooting as it will always post some sort of output. Its in post2 of the root guide in my sig.
1. Put your tab in apx mode and connect your "micro usb cable" to your pc
2. Run the first .bat file of babsector.
Now what exactly happens next, can you post a screenshot?
Can't help much further until you do this!!
If the first .bat file runs ok, you need to boot directly to cwm which babsector has just flashed.
Do a nandroid backup and then
a complete wipe including /data/media - you need to go in and specifically enable this from the 'mounts' menu. Wipe davlik and cache too.
Now flash your custom rom and power down.
Back into apx mode and run the 2nd .bat file.
Reboot and voila! you should be all good - fingers crossed!!!
Click to expand...
Click to collapse
OK so when I put it in APX mode and connected to it, I ran the "A501 A" file and entered my SBK. But when I hit enter it will work just fine alllll the way up til it says something about sending file to bootloader, and then just fails. This is the SAME thing that happened when I use NvFlash and APXFlash! None of them can seem to access my boot loader and I never get anyway white text on my Acer saying it is! So idk what to do! I can't post any screenshots at the moment since I'm not home right now. I will once I get home. Also I can't even enter stock recovery on my tablet! I turn it off, and as its turning back on I hold the "Power" and "Volume Down" button, but just boots normally.....so Idk if this has to do with the problem or not....
Sent from my XT912 using Tapatalk
NEVER MIND GOT IT WORKING!!!!!! THANK GAWD. I just reinstalled the drivers and apx drivers and when i loaded up the a501 A file it sent everything correctly and smoothly! Now running a custom ROM! THANKS A MILLION!!!!!!!(;
Not for me =(
RECKLESS PAIN said:
NEVER MIND GOT IT WORKING!!!!!! THANK GAWD. I just reinstalled the drivers and apx drivers and when i loaded up the a501 A file it sent everything correctly and smoothly! Now running a custom ROM! THANKS A MILLION!!!!!!!(;
Click to expand...
Click to collapse
Well that sux because I thought we were on the same page, except you got it working. I get stuck on uploading the bootloader stage 2 in apx program.
Also when I try to load recovery.
It does a laying down android with a triangle and a exclamation point in it.
I found the cpuid from navigating to the android file folders.
0428004342e0e297 which converts to this
0xC7E2C201 0xDBFDC006 0xDB922404 0x44312103
Is there a way to verify that I do in fact have the correct one?
I really want to update my rom, but I don't know what I'm doing wrong.
vicviper74 said:
Well that sux because I thought we were on the same page, except you got it working. I get stuck on uploading the bootloader stage 2 in apx program.
Also when I try to load recovery.
It does a laying down android with a triangle and a exclamation point in it.
I found the cpuid from navigating to the android file folders.
0428004342e0e297 which converts to this
0xC7E2C201 0xDBFDC006 0xDB922404 0x44312103
Is there a way to verify that I do in fact have the correct one?
I really want to update my rom, but I don't know what I'm doing wrong.
Click to expand...
Click to collapse
What I did was went to the Acer website and found my tablet and installed the HoneyComb driver that was right under my ICS firmware. (Since they didn't have any drivers for the latest ICS OTA 4.0.3) which these drivers will work fine. Next after I reinstalled those drivers I put my tablet in APX mode, connected it to my laptop. Made sure in the bottom right hand corner it had installed the APX drivers successfully and made sure under the usb icon it.said "APX". I then flashed the a501a file first and it went through and worked! Them from there I went to wipe what I needed and installed my custom rom!
Sent from my XT912 using Tapatalk
vicviper74 said:
Well that sux because I thought we were on the same page, except you got it working. I get stuck on uploading the bootloader stage 2 in apx program.
Also when I try to load recovery.
It does a laying down android with a triangle and a exclamation point in it.
I found the cpuid from navigating to the android file folders.
0428004342e0e297 which converts to this
0xC7E2C201 0xDBFDC006 0xDB922404 0x44312103
Is there a way to verify that I do in fact have the correct one?
I really want to update my rom, but I don't know what I'm doing wrong.
Click to expand...
Click to collapse
two tools in my root guide for sbk check and while you're there read up about the boot.p file if you ever want to get past the dead android screen, everything is explained in the first post

[Q] Acer Iconia A501 - Frozen @ Acer Logo

Yet another Newb
I have googled / search / read many posts & threads over the past days & weeks.
I had a Acer Iconia A500 freeze @ the Acer logo screen like so many other have had, BUT I managed to fix it last time.
My mate has an Acer Iconia A501 ( so its got a sim card as well ) & its done the same thing.
I have tried the same process as the last 1, but to no avail as yet.
I'm needing some help please guys as I bet its something really simple , but I cant see why its not working for me.
OK AFAIK its all been stock Acer roms & OTA updates.
Processes so far..
Power on & hold down volume + & slide screen lock get this & then reboots
erasing user data .. erasing cache...
Power on & hold down volume - & slide screen lock get this
Bootloader v0.03.12-ICS: starting fastboot USB download protocol
Power on & hold Volume - release power button when it vibrates / starts to boot , still hold down vol button
I have tried the same update.zip file as my last A500 experience , but it got me to the android icon with the spinning globe for hours, left from any where from 40 mins to over night & same basically a lockup. then tried again & somehow got it to almost 90 ish % & stayed like that for ages.
Now I can only get it to see the green android guy for 10-12 seconds before he falls over & dies with the red triangle & black exclamation mark inside it.
I'm not fussed on what rom etc or even stock acer again as I can OTA it back up to last again.
I would just like it to work again & see where I am going wrong...
Anyone able to assist in my error please.
OH micro SD card is formatted to Fat under Win7,
OR should it be Fat32 ?? ( I am going to format with another A500 Tablet & hope it works better )
Also when I go to start it
Power on & hold Volume -, release power button when it vibrates / starts to boot , still hold down vol button
it shows on screen that its erasing data before booting & seeking the update.zip file from sd card etc..
SO it looks like its all doing what it should be , but then doesn't.
Still looking for the reason why this flash recovery wont work.
Using various versions & ensuring all are renamed to update (update.zip file) & messages on booting are the same.
looking for / accessing update.zip file etc etc
Android guy sits there & now I cant even get the status bar below him , its just the guy 10 seconds & dead with his guts hanging out
Any thoughts or a correct file to go with the bootloader appreciated.
Am I doing something wrong OR is it that corrupt its stuffed ???
Thanks to you guru's for assistance
Next instalment
My next instalment on the "unhappy" A501
I have moved my trying to an XP Pro SP3 machine.
I have installed the USB driver package & also the Windows update for the MTP.
I plug in & turn on , windows detects the Acer Iconia A500 & loads into Dev Manager as Acer MTP
It doesn't load enough to appear as a separate drive in the "My Computer" though.
I spose its a small step , but still getting no where.
Please Help :crying:
as I would like to hand this back as I need to move house & it will take some time for me to get setup again to be able to look at fixing it.
Ask for more info & I will reply ASAP
Uninstalled the MTP update , same for the USB driver package & rebooted.
made sure the Acer dir had gone as well.
Installed USB driver pack again & looked at that it contains.. MTP folder & drivers are in there already ..
Still shows up as Acer MTP & nothing in My Computer.
I did see that it shows up with the yellow exclamation mark after a while & then re connects again. ??
IF I start Blackthunders A500 Filemanager using the power button / vol + & flicking the screen lock on/off, I start with Bootloader ver & "starting fastboot USB download protocol.
IS this any help to fix the tablet ??
edit : How do I confirm it has USB Debugging turned on IF I cant turn it on ???
Hi Noel, sorry you got troubs
Your ext sd card should really be formatted via android, although there is a tool for windows you can use called sd_formatter, HP also have a formatting tool, google either one - I have previously posted the sd_format tool "here somewhere" will provide the link if I can track it down.
The drivers are the most important part of getting your tab up and running again.
If you have the Acer ones and the USB ones installed correctly, you should be good to go. In saying that, it can be a real biarch when you're in the position you're in.
Uninstall the acer drivers, reboot. Do not have your tab connected, wait for windows to fully start and its done updating itself or woteva it needs to do lol.
Run the driver exe. If your tab is not booting its hard to tell if usb debug is enabled or not. ANd windows will have trouble detecting it....sooooo......
Go to the root guide in my sig, post #2 download the "babsector file". You will also need to download an ics or jb rom, there is a stock rooted ics or you can use one of 'civato's' Flex roms - I'm still running one of his old ICS ones and it does me fine, I've not kept up with the latest roms, so I cannot help you much with that sorry!
Download your rom and put it on your sd card (if theres a formatting issue we will find out very soon!!!)
Babsector is run via your PC, now, win7 32bit systems work best for this, so if you aint got one, find a mate thats got one! You will save yourself alot of grief by not using win8. Even XP or vista will work!!
You'll need to enter your cpuid so keep that at the ready.
Babsector will flash cwm recovery and install the unlocked bootloader for you.
After running the first bat file, enter recovery and do a complete wipe, (enable data/media option) It has to be a FULL wipe theres no getting around it. And yes, do the wipe procedure at least TWICE!!!!
Once the wipes are done, flash the rom and then run the b.bat file for good measure. As long as you see the big white "PASS" after running each bat file, you're good to go.
IF there is a problem, babsector will output an error....post that and we'll go from there!
Good Luck
dibb
dibb_nz said:
Hi Noel, sorry you got troubs
Your ext sd card should really be formatted via android, although there is a tool for windows you can use called sd_formatter, HP also have a formatting tool, google either one - I have previously posted the sd_format tool "here somewhere" will provide the link if I can track it down.
The drivers are the most important part of getting your tab up and running again.
If you have the Acer ones and the USB ones installed correctly, you should be good to go. In saying that, it can be a real biarch when you're in the position you're in.
Uninstall the acer drivers, reboot. Do not have your tab connected, wait for windows to fully start and its done updating itself or woteva it needs to do lol.
Run the driver exe. If your tab is not booting its hard to tell if usb debug is enabled or not. ANd windows will have trouble detecting it....sooooo......
Go to the root guide in my sig, post #2 download the "babsector file". You will also need to download an ics or jb rom, there is a stock rooted ics or you can use one of 'civato's' Flex roms - I'm still running one of his old ICS ones and it does me fine, I've not kept up with the latest roms, so I cannot help you much with that sorry!
Download your rom and put it on your sd card (if theres a formatting issue we will find out very soon!!!)
Babsector is run via your PC, now, win7 32bit systems work best for this, so if you aint got one, find a mate thats got one! You will save yourself alot of grief by not using win8. Even XP or vista will work!!
You'll need to enter your cpuid so keep that at the ready.
Babsector will flash cwm recovery and install the unlocked bootloader for you.
After running the first bat file, enter recovery and do a complete wipe, (enable data/media option) It has to be a FULL wipe theres no getting around it. And yes, do the wipe procedure at least TWICE!!!!
Once the wipes are done, flash the rom and then run the b.bat file for good measure. As long as you see the big white "PASS" after running each bat file, you're good to go.
IF there is a problem, babsector will output an error....post that and we'll go from there!
Good Luck
dibb
Click to expand...
Click to collapse
Morning dibb
I have the Acer USB driver pack that has MTP files as well, is this all I need or maybe that's the start of my problems ??
( Acer ones and the USB ones installed correctly ?? )
1 of my many issues is that as its not my tablet , I don't have the cupid at all.
It wont start so I cant get it that way , & tried to connect with blackthunders A500 file manager as well but doesn't output any data that I can see / find.
Im thinking I have to flash with an unlocked bootloader before I can do anything - Yeah ??
I am quite happy to eventually go back to stock ICS @ the ends so anything is good.
R u familiar with Linux at all, its the only way of retrieving yr cpuid.
If not, it will be a matter of finding an update.zip that will work 4 u. There is one in the root guide u can try?
Sent from my HTC_PN071 using Tapatalk
dibb_nz said:
R u familiar with Linux at all, its the only way of retrieving yr cpuid.
If not, it will be a matter of finding an update.zip that will work 4 u. There is one in the root guide u can try?
Sent from my HTC_PN071 using Tapatalk
Click to expand...
Click to collapse
Hi
Not played with any Linux before so this might be funny at best to say the least.
the update.zip you suggest , is that the HC 3.1 full ??? (then rename to update.zip) on sd card & try ??
Yep, there's a guide stickied in general for using Linux to get it.
And yep the hc 3.1 FULL. If u get it booting you can OTA all the way to ics, but that's quite time consuming. So root it and install cwm, that will get u yr cpuid. After that unlock the boot loader!!!
I see there's a kit Kat Omnirom, based on civatos flex Rom, gonna give it a spin myself
Sent from my HTC_PN071 using Tapatalk
dibb_nz said:
Yep, there's a guide stickied in general for using Linux to get it.
And yep the hc 3.1 FULL. If u get it booting you can OTA all the way to ics, but that's quite time consuming. So root it and install cwm, that will get u yr cpuid. After that unlock the boot loader!!!
I see there's a kit Kat Omnirom, based on civatos flex Rom, gonna give it a spin myself
Sent from my HTC_PN071 using Tapatalk
Click to expand...
Click to collapse
Tried using USBdeview to get the cupid, found a sting with 15 character's so tried that with a "0" at the start.
used the SB calculator & then blackthunders APX flasher , but it didn't work.
got all the way through with out any issues , but didn't actually flash it
Had assistance from JdgM3NT4L but still trying
the issue is the CPUID though to ensure I have it
more help the better
.
*fergs* said:
Tried using USBdeview to get the cupid, found a sting with 15 character's so tried that with a "0" at the start.
used the SB calculator & then blackthunders APX flasher , but it didn't work.
got all the way through with out any issues , but didn't actually flash it
Had assistance from JdgM3NT4L but still trying
the issue is the CPUID though to ensure I have it
more help the better
.
Click to expand...
Click to collapse
Hi dibb_nz
with lots of help from JdgM3NT4L I now have the cupid & can get through all of Blackthumders apx flasher up to the 2nd stage of the flashing where its uploading the image file.
it goes into this about 50 % then just hangs...
How long should it normally run for the flashing ??
.
Oh dear, this is not an error u want to see...Would explain the freezing issues. I've never seen a suuccesful solution for the ebt error. Just keep trying sooner or later it will flash....also the tdv4 file has been known to work , you'll be back on hc 3.2 with that but you'll have root and cwm if that's any consolation, lol...
The manual nvflash methods work best babsector or civs nvflash. If it is a faulty chip then even if u do get it booting it won't be a permanent fix.....
See how u go with the other methods k?
Sent from my HTC_PN071 using Tapatalk
dibb_nz said:
Oh dear, this is not an error u want to see...Would explain the freezing issues. I've never seen a suuccesful solution for the ebt error. Just keep trying sooner or later it will flash....also the tdv4 file has been known to work , you'll be back on hc 3.2 with that but you'll have root and cwm if that's any consolation, lol...
The manual nvflash methods work best babsector or civs nvflash. If it is a faulty chip then even if u do get it booting it won't be a permanent fix.....
See how u go with the other methods k?
Sent from my HTC_PN071 using Tapatalk
Click to expand...
Click to collapse
Looking for a link to civs nvflash...
is that on your pages as well , I haven't seen it as yet
.
Yep it is, it's on the unlocked bootloader post as well
Sent from my HTC_PN071 using Tapatalk
dibb_nz said:
Yep it is, it's on the unlocked bootloader post as well
Sent from my HTC_PN071 using Tapatalk
Click to expand...
Click to collapse
Thanks
Is there any advantage to using XP rather than win7 ??
.
Not thats ever been report ed, but hey, woteva works
Sent from my HTC_PN071 using Tapatalk
*fergs* said:
Thanks
Is there any advantage to using XP rather than win7 ??
.
Click to expand...
Click to collapse
Ok
looks like its almost a lost cause..
using civs flasher in APX mode under win7
gets through the start of the flashing to failed executing command 25 NvError 0x120002
command failure: sync failed <bad data>
bootloader staus : Bct Write Failed <code22> message : nverror:0x42008 <0x6042008> flags :0
then it has *press anykey when your A500/501 is in botloader mode
press any key to continue .. so I did anyway
flashing bootloader : bootloader_v8.bin
nvflash started
[resume mode]
formatting partition 4 please wait.. command execution failed cmd 13, error0x120002
failed!
command failure: format partition failed <bad command>
bootloader status: unknown operation <code: 1> message: flags:0
.
When u tried the apxflash tool earlier, there's an option to "dump" yr bct - If u didn't do that try dumping it, and then choose " use saved bct' , sorry dude its been a loooong time since I've had to do it so I may not have the wording exactly right
Sent from my HTC_PN071 using Tapatalk
dibb_nz said:
When u tried the apxflash tool earlier, there's an option to "dump" yr bct - If u didn't do that try dumping it, and then choose " use saved bct' , sorry dude its been a loooong time since I've had to do it so I may not have the wording exactly right
Sent from my HTC_PN071 using Tapatalk
Click to expand...
Click to collapse
Ok thanks.
Will try that as well when I try #17 again shortly.
will make sure tablet is connected in APX before I click "dump"
I assume because I get all this way with multiple programs , the CPUID & SBK have to be correct ??
.

Categories

Resources