[Q] Nexus 7 Booting Failed & No ADB Connection - Nexus 7 Q&A, Help & Troubleshooting

Hi Guys
Another rooting/flashing noob here that's messed up his N7 sorry
I know there's other threads with similair issues but they all advise fixes involving using adb connection and usb debugging which I cannot do (explained below)
My device will turn on, it goes to the google logo with the green start icon, I can select and go into bootloader and recovery, if I press start it says booting failed in the upper left corner and will go no further.
My device is plugged in via usb, i have the latest rookit 1.5.5, and sdk installed etc, i also have the naked drivers and the factory images from google on my pc.
The machine came with 4.1.2 installed (nakasi-jzo54k).
To mess it up, somewhere in between updating to 4.2, rooting and unrooting it, and flashing it i must have done something wrong but being a happy button bashing noob I don't know what exactly...
And yes I also didn't make a backup of any kind because well I'm just a moron and lesson well learnt.
So yeah, I have no adb connection, can't go into debuging mode and it won't boot.
Does anybody know if there is anyway I can restore my tablet please? Any help would be hugely appreciated!
Many thanks

greyphox said:
Hi Guys
Another rooting/flashing noob here that's messed up his N7 sorry
I know there's other threads with similair issues but they all advise fixes involving using adb connection and usb debugging which I cannot do (explained below)
My device will turn on, it goes to the google logo with the green start icon, I can select and go into bootloader and recovery, if I press start it says booting failed in the upper left corner and will go no further.
My device is plugged in via usb, i have the latest rookit 1.5.5, and sdk installed etc, i also have the naked drivers and the factory images from google on my pc.
The machine came with 4.1.2 installed (nakasi-jzo54k).
To mess it up, somewhere in between updating to 4.2, rooting and unrooting it, and flashing it i must have done something wrong but being a happy button bashing noob I don't know what exactly...
And yes I also didn't make a backup of any kind because well I'm just a moron and lesson well learnt.
So yeah, I have no adb connection, can't go into debuging mode and it won't boot.
Does anybody know if there is anyway I can restore my tablet please? Any help would be hugely appreciated!
Many thanks
Click to expand...
Click to collapse
If you got half way through rooting, what has happened to your ADB?
Try the option "Return to stock and Flash stock image" try that.
What message does ADB give you etc?

Wilks3y said:
If you got half way through rooting, what has happened to your ADB?
Try the option "Return to stock and Flash stock image" try that.
What message does ADB give you etc?
Click to expand...
Click to collapse
Hi thanks
Well when I run 'adb devices' in dos the device does not come up, blank etc
but if in the advanced utilities section of the rookit it will reboot it and say connected etc when i try to boot/flash image for bootloader, system, recovery etc but always goes back to google logo and won't boo up, can still get into bootloader and recovery though
i fully rooted it and unrooted it, i tried to flash 4.1.1 to see if i could thats when this all started
if i try flash stock + unroot option (device is on/normal) sub option the rootkit tries to check adb status and says not connected etc which makes sense as dos won't detect it, if this helps in device manager its coming up as...
samsung android phone
android bootloader interface
so i that driver in rootkit to manually install the naked drivers in device manager and it will say they are up to date etc
so the advanced utilities section for boot/flash image will communicate but no other.....
flash stock root used to detect it but even then in dos it would give me the 'too many links error'
I just hope there is a solution.... and i hope all that makes sense sorry
Cheers

greyphox said:
Hi thanks
Well when I run 'adb devices' in dos the device does not come up, blank etc
but if in the advanced utilities section of the rookit it will reboot it and say connected etc when i try to boot/flash image for bootloader, system, recovery etc but always goes back to google logo and won't boo up, can still get into bootloader and recovery though
i fully rooted it and unrooted it, i tried to flash 4.1.1 to see if i could thats when this all started
if i try flash stock + unroot option (device is on/normal) sub option the rootkit tries to check adb status and says not connected etc which makes sense as dos won't detect it, if this helps in device manager its coming up as...
samsung android phone
android bootloader interface
so i that driver in rootkit to manually install the naked drivers in device manager and it will say they are up to date etc
so the advanced utilities section for boot/flash image will communicate but no other.....
flash stock root used to detect it but even then in dos it would give me the 'too many links error'
I just hope there is a solution.... and i hope all that makes sense sorry
Cheers
Click to expand...
Click to collapse
Have you added ADB to your envioronment varibles?
If not,
Control Panel -> Advanced -> Envioronment Variables, then add the path to your SDK folder to it, after the other variables (Variables are separated using ; )
Also, try to install the drivers, using Wug's method, thats THE ONLY ONE that worked for me, unistall anything to do with nexus before hand.
Goto Device manager, find anything that involves Nexus or Android.
Then Start the "Full Driver Method" on Wugs kit.
This should sort your driver issue.
Then the Nexus should be visible through ADB.
PS- Your adb isnt broken if its accepting the commands.
The reason your device isnt listed, is the Drivers.
You have driver issues, so try the what I just stated and let me know .

nexus toolkit from dev section

ngoralph said:
nexus toolkit from dev section
Click to expand...
Click to collapse
Have you even read what hes said?
He's already tried the toolkit...

Wilks3y said:
Have you added ADB to your envioronment varibles?
If not,
Control Panel -> Advanced -> Envioronment Variables, then add the path to your SDK folder to it, after the other variables (Variables are separated using ; )
Also, try to install the drivers, using Wug's method, thats THE ONLY ONE that worked for me, unistall anything to do with nexus before hand.
Goto Device manager, find anything that involves Nexus or Android.
Then Start the "Full Driver Method" on Wugs kit.
This should sort your driver issue.
Then the Nexus should be visible through ADB.
PS- Your adb isnt broken if its accepting the commands.
The reason your device isnt listed, is the Drivers.
You have driver issues, so try the what I just stated and let me know .
Click to expand...
Click to collapse
The first step in the full driver guide in wugs kit is to enable usb debugging which i cannot do though as it won't power on.......
I have added the environmental variabes before yes sorry, qbkings utube vids showed me how to do that
Just tried these steps
toolkit home screen, flash stock + unroot (softbricked bootloop)
then naksaki 4.2 jzo54k, auto download and extract.
it got to dos stage and i get 'Failed bootloader is locked'
??? thanks again

Wilks3y said:
Have you added ADB to your envioronment varibles?
If not,
Control Panel -> Advanced -> Envioronment Variables, then add the path to your SDK folder to it, after the other variables (Variables are separated using ; )
Also, try to install the drivers, using Wug's method, thats THE ONLY ONE that worked for me, unistall anything to do with nexus before hand.
Goto Device manager, find anything that involves Nexus or Android.
Then Start the "Full Driver Method" on Wugs kit.
This should sort your driver issue.
Then the Nexus should be visible through ADB.
PS- Your adb isnt broken if its accepting the commands.
The reason your device isnt listed, is the Drivers.
You have driver issues, so try the what I just stated and let me know .
Click to expand...
Click to collapse
OK unlocked it via the main unlock option on rootkit and it unlocked ok, so im now re-trying te softbricked option to flash etc and its currently.. writing system...

greyphox said:
OK unlocked it via the main unlock option on rootkit and it unlocked ok, so im now re-trying te softbricked option to flash etc and its currently.. writing system...
Click to expand...
Click to collapse
Sounds good mate !
Need any extra help drop us a PM I'd be happy to lend a hand.

Wilks3y said:
Sounds good mate !
Need any extra help drop us a PM I'd be happy to lend a hand.
Click to expand...
Click to collapse
MOOOOOO!
It wrote to the system ok and now its hanging on erasing user data, googled and its happend to others.......
OK, more help please, been hanging for5 mins lol

Issue Fixed I think, he PM'd me.

Unlocked but... what do I do now?
Newbie but old or old but newbie - With the need and not just a curious want, to be able to "rename" my Nexus 7 v1 so I can see a friendly name in my old DD-WRTed Linksys GL, I finally had enough gumption to try rooting this tablet.
So, I was excited that when I used Nexus Root Toolkit v1.6.8 on my Nexus 7 v1, following the "easy and visual" steps, I actually managed to unlock this device. But when it came to the "root" part, the ADB repeatedly failed to recognize this tablet. I tried all the suggested steps and remedies, but so far, nada.
The tablet now boots past the white "Google" with an unlocked icon at the bottom, but nothing beyond thea big white "right-arrow" on the screen. I can choose a Wi-Fi signal to connect to, but that's it.
This is my first tablet and I have been playing with it for the past 3 months. I know people here are more than willing to help, so thank you in advance.
BTW, I am not that young to spend hours way past sleeping time to scour for answers and piece it together.

Wilks3y said:
Issue Fixed I think, he PM'd me.
Click to expand...
Click to collapse
Could you let me know his solution as I have exactly the same problem and have used all of his previous (unsuccessful) fixes myself?

Kindred Mole said:
Could you let me know his solution as I have exactly the same problem and have used all of his previous (unsuccessful) fixes myself?
Click to expand...
Click to collapse
+1

This worked for me...
Download the image file for your device which you can find at the Google Developer's site
Copy the uncompressed files from the image archive to the platform-tools folder of the Android SDK
Use the up and down volume on the device to get into bootloader mode. Connect the device to a usb port.
Open a command prompt in the platform tools folder and run the flash-all batch file to load the image to your device. After a few minutes I got the happy X logo to get me back to a blank slate.

Related

Solved having trouble getting root

I am running Windows 7 x64 I have no idea if following this guide on another operating system will work, this is just a step by step of EXACTLY how I did this, Not to say this is the only way. I have tested other methods and I have put in different variables and I have successfully gotten it to work several times in a row doing it this way while following jp4756's guide. I am sure this is not the only way to accomplish root, however this worked for me perfectly. PLEASE don't skimp out on any step. There is no shortcut here just follow the steps and jp4756's guide to the TEE!!!
Step 1.
Uninstall pdanet/htc sync/ any other thing you installed to get all this to work before
Unplug phone from computer usb cables and have phone powered on and in settings menu
Step 2.
download USBDeview(install it) easy to google it
download HTC SYNC(do NOT install it yet) for mytouch slide easy to google it
Step 3.
While in settings menu go to Application
go to Development
and check the box USB debugging
Step 4.
In settings go to Connect to PC
touch Default connection type and choose Sync
At this point you have the phone not plugged in, you have the setting on the phone changed, you have dowloaded usbdeview and installed it, and have htc sync dowloaded
Step 5.
Start USBDeview(some may have to right click the exe and run as administrator) and delete all android drivers and mytouch drivers, anything relating to android
Install HTC SYNC and let it completely install
Step 6.
Plug phone into computer and let the computer auto install drivers etc...
Step 7.
turn the phone off. Power on the Slide into the bootloader by Holding Down ( Volume Down + Power Button ) After it does its little thing your computer will beep and start auto installing drivers and stuff
Step 8.
If everything has gone according to plan in Device Manager it will show Android 1.0 or w/e with a exclamation point. Right click on that and choose Update Driver Software
2 options pop up choose Browse my Computer
then choose Let me Pick from list...
a list will appear giving lots of choices
choose Android Phone should be the first choice that says android....
then 3 options will appear, choose the 3rd one that has Composite in it and choose okay.
Step 9.
Now select Recovery from the bootloader menu
after it is done doing its thing completely 2 things will happen
1) In device manager you will now have something under disk drives
2) USBDeview a new driver will pop up at the end of the list, something like this:
Port_#0004.Hub_#0004 T-Mobile myTouch 3G Slide USB Device Mass Storage Yes No No No E: HT05RPS05696 6/16/2010 4:00:58 PM 6/16/2010 4:07:35 PM 0bb4 0ff9 08 06 50 USBSTOR USB Mass Storage Driver USBSTOR.SYS USB @usbstor.inf,%generic.mfg%;Compatible USB storage device
Step 10.
This new driver to appear shows Yes under the Connection column. This needs to be disabled. Right click on it and choose Disable Selected Device
after about 10 seconds it should no longer say Yes under connection column, if this does not happen then you are not running it under Admin.
Okay so now you are literally almost freaking there.
Step 11.
Now basically all you have to do is follow jp4756's guide starting with step 5. Im going to assume you already understand steps 1-4 in his guide. And you already have the package listed in his guide as well. You have already put those files where they belong
Step 12.
Okay so we are basically following his guide now. first things first
5. run the update.zip it will fail(MUST DO)
6. now in cmd type adb reboot recovery (don’t press enter)
7. in the recovery hit reboot system now( once it starts rebooting run that command rapidly untill back into recovery) <--- Basically while the phone is rebooting you are just hitting up arrow enter up arrow enter up arrow enter up arrow enter in CMD. You will know when you can stop when the CMD freezes for a sex, computer makes beeping noises and the phone reboots basically. It is headed for recovery and we must switch our command now
8.type adb devices(if it says nothing repeat the steps, if it says offline unplug it and then plug it back in, if it says recovery your fine) <---- Basically after you know its headed for recovery you change command to adb devices and you repeat previous procedure, up arrow enter up arrow enter up arrow enter etc.... I did not use loop, i did this all manually.
This may take a few tries, if it does not show offline then go back to step 6 rinse and repeat. You go back and forth just a few times and you will have it. Literally within about 3 tries you should accomplish the annoying goal of having offline stay there.
My job is done, follow guide and continue on your quest for root
There is no guarantee this will work for everyone. I am not claiming that this is 100% Im just giving an explanation as to how i got it and what might have been causing everyones trouble. Results may vary
Thank you to all the devs who made this possible and jp4756 for his wonderful guide
Wow that is just way to much stuff there...
I've ran loop on 2 totally different Computers running 2 totally different OS's and running 2 totally different Drivers, I have no problems with either one..
1st: XP sp3 32bit w/ PDANet Drivers <--- Only ones that I could get to load, Forcing drivers wouldn't work in XP... also like I said before, make sure to close the PDANet Program in the Toolbar.. Also make sure to read the directions when installing PDANet...
2nd: Windows 7 64bit w/ Htc Drivers <---PDANet Drivers also work... You have to force the HTC Drivers in Devices Manager..
I think most people are having this problem because they aren't doing the USB Debug thing. But could be Wrong.
Also a side note my phone is running the USB Drive and not SYNC works just fine...
Also It just might be your computer so I would try and use a different one if you can.
jnight666 said:
Wow that is just way to much stuff there... I don't see how anyone has a problem with loop.
I've ran loop on 2 totally different Computers running 2 totally different OS's and running 2 totally different Drivers, I have no problems with either one..
Also It just might be your computer so I would try and use a different one if you can.
Click to expand...
Click to collapse
Sorry that we all can't be as cool as you jnight666, but some of us are having real problems with no apparent explanation. I am an IT professional with access to every kind of computer used in the modern world, and trust me, I've tried all the ones that apply. Rubbing it in our faces that it was just so easy for you is just rude.
THE DRIVER MAKES NO DIFFERENCE FOLKS. IF YOU CHANGES DRIVERS AND THEN IT WORKED, IT'S PURELY A COINCIDENCE. PEOPLE HAVE GOTTEN THIS TO WORK ON MANY DIFFERENT DRIVERS.
THE CONNECT TO PC SETTING ON THE PHONE DOES NOT MAKE A DIFFERENCE IN FASTBOOT/RECOVRY FOLKS. IF YOU CHANGED THIS SETTING AND IT WORKED, IT'S PURELY A COINCIDENCE. PEOPLE HAVE GOTTEN THIS TO WORK ON VARIOUS DIFFERENT SETTINGS.
That being said, this didn't solve mine. I still cannot root.
And Yes, my cap locks was on purpose.
Okay, please dont come in here and start telling me how my method is wrong. I already stated there are other ways to accomplish it. I had already stated that this isnt 100%. I am merely offering an exact procedure that i duplicated SEVERAL times, with it working for me every time. If this isnt how you accomplished it then pls, theres no reason for you to be in this thread posting negative comments.
With that said fermunky, did you follow the procedure to the tee? - btw im not assuming anything so please dont take it personal. Im just trying to help ppl : )
My caps wasn't to be negative. There are too many people claiming the drivers were a key. And I am not saying yours said this, but it also doesn't clearly say it doesn't. That is all.
Completely understandable, and definitely no disrespect to you or anyone here
When I disable the Mass Storage I see other items in USBDeview that reference the Slide. I end up in a loop after rebooting and rapidly entering adb reboot recovery. I was seeing everything as your instructions explained.
Do you think it is worth a shot to disable all but one item for the Slide? Any suggestions would be greatly appreciated. I work in an IT Escalation Group and this has to be one of the toughest nuts I have tried to crack! LOL
Thanks,
jnight666 said:
Wow that is just way to much stuff there... I don't see how anyone has a problem with loop.
I've ran loop on 2 totally different Computers running 2 totally different OS's and running 2 totally different Drivers, I have no problems with either one..
1st: XP sp3 32bit w/ PDANet Drivers <--- Only ones that I could get to load, Forcing drivers wouldn't work in XP... also like I said before, make sure to close the PDANet Program in the Toolbar.. Also make sure to read the directions when installing PDANet...
2nd: Windows 7 64bit w/ Htc Drivers <---PDANet Drivers also work... You have to force the HTC Drivers in Devices Manager..
I think most people are having this problem because they aren't doing the USB Debug thing. But could be Wrong.
Also a side note my phone is running the USB Drive and not SYNC works just fine...
And if anyone want to say anything about this I'll go load up my Pentium III machine and see if it works on that...
Also It just might be your computer so I would try and use a different one if you can.
Click to expand...
Click to collapse
3 different computers 3 different op systems installed uninstalled drivers different programs etc...some phones are hard to root its a ambiguous situation
Yeah sorry I wasn't trying to be rude.
I was just trying to be helpful, sorry if it came out that way...
I also have the loop not working issue but i usually only happens once or twice..
I feel your pain I had trouble with the push Update.zip part of this thing and I was trying it for hours...
I was just trying to tell you what worked for me...
If you tried different computer and still no luck then im guessing its the Phone that is the issue or the USB Cable...
gofizzle said:
When I disable the Mass Storage I see other items in USBDeview that reference the Slide. I end up in a loop after rebooting and rapidly entering adb reboot recovery. I was seeing everything as your instructions explained.
Do you think it is worth a shot to disable all but one item for the Slide? Any suggestions would be greatly appreciated. I work in an IT Escalation Group and this has to be one of the toughest nuts I have tried to crack! LOL
Thanks,
Click to expand...
Click to collapse
You definitely don't want to do that, as one of them is one that you need to be connected once you finally get to see offline stay. Are you rebooting using the method described in jp4756's guide? meaning your rebooting using the recovery option reboot, then in command doing the adb reboot recovery, then once you no the phone is gonna boot into recovery you switch to spamming adb devices? When you say your in a loop it sounds to me maybe your not doing the adb devices after the phone listened to your adb reboot recovery command
Followed your instructions...
No ! next to anything in device manager. Right clicked on Android Phone > Android ADB Device and went to properties to update the driver. Nothing in the HTC folder would work, they both said that they weren't applicable for the device...(this was in C:\Program Files (x86)\HTC\HTC Driver\Driver Files\Win7_x64)
before plugging your phone into your computer a single time, can you confirm that you started up USBDeview and uninstalled every single driver related to android, or mytouch or htc etc... Also before ever plugging your phone in a single time did you install htc completely?
Code3VW said:
Followed your instructions...
No ! next to anything in device manager. Right clicked on Android Phone > Android ADB Device and went to properties to update the driver. Nothing in the HTC folder would work, they both said that they weren't applicable for the device...(this was in C:\Program Files (x86)\HTC\HTC Driver\Driver Files\Win7_x64)
Click to expand...
Click to collapse
Right Click Android Phone - Properties - Driver - Update Driver - Browse My Computer - Let me pick from a list of device drivers (click this, don't give it the path in the upper box) - Have Disk - Browse to yours C:\Program Files (x86)\HTC\HTC Driver\Driver Files\Win7_x64 - click androidusb.inf and select Open - OK - Unclick Show compatible hardware - Select "T-Mobile myTouch 3G Slide" - Next - All Done.
after getting some sleep and starting fresh, i tried this method again this morning. on the fourth or fifth try i got my slide to stick in offline mode. so then i unplugged it and plugged it back in to get into recovery. lost it, and now im on my 50th or so try to get it back to offline mode.
i need a stiff drink lol
it seems partially a driver issue and also an adb issue i thinks. it connects 'when it feels like it'
i'll report back if i make any progress.
btw im doing this on XP Pro SP3 fully updated
edit: I also noticed when adb does catch the slide, 2 instances of adb are running, then one closes and loses the phone. maybe this will help solve some of the problems
You've misunderstood that post. Only one instance of ADB will show when the loop is not running. Once you start the loop, another instance of ADB will show up and disappear many times. This is normal. As long as only one instance is showing before loop, you are fine.
fermunky said:
My caps wasn't to be negative. There are too many people claiming the drivers were a key. And I am not saying yours said this, but it also doesn't clearly say it doesn't. That is all.
Click to expand...
Click to collapse
I would just like to say that I have followed every method listed in these forums, achieved root the first try (using the updated update.zip). My problem occured when flashing the eng rom, I lost clockwork,root and now the phone runs like sh!t. Yes, superuser was installed and yes my pc no longer recognizes the phone when searching for adb devices after pushing the first 2 files from the eng flash walkthrough.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk
mtjnkee said:
I would just like to say that I have followed every method listed in these forums, achieved root the first try (using the updated update.zip). My problem occured when flashing the eng rom, I lost clockwork,root and now the phone runs like sh!t. Yes, superuser was installed and yes my pc no longer recognizes the phone when searching for adb devices after pushing the first 2 files from the eng flash walkthrough.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk
Click to expand...
Click to collapse
maybe your downloads were corrupted. that's really strange...
man, that really sucks! I am truely sorry...
after spending 20 hours or so on rooting, I really feel your pain.
After I reboot into recovery mode and then use adb to check for my device I never get it to show up. Just so I am clear when you say 'spamming your device' you mean after reboot and rapidly entering the reboot recovery command, then looking for device with adb devices command. I never get it to show.
Thanks for the reply!
No devices in adb?
So I had this same problem with my MT3G. Type in "adb devices" kills the last device and it lists connected devices and NONE were listed. Not sure exactly what I did, but did eventually get it working. (I was trying to use the emulator)
Now though I'm having the same problem with my wife's MTS. Any ideas?

SOD and no root and unable to connect to a pc!

Ok so I was running taboonay 3.0d and I thought I'd have a go at Thor's rom. Flashed it wasn't really into it few things missing that I like in taboonay. So I then restored my back up. All hunky dory.
I then flashed a zip for scrillax v8 bootloader. It seemed to work fine, tablet boots up and rom running fine. I then tried to get to recovery and it's just not happening. Acer recovery says it cannot get root access. When I reboot I can get into the bootloader menu but none of the commands work. I can't get into the recovery menu at all no matter what I do. So then I figured I'd give Blackthund3r's root tool a go. Got everything ready on the pc including latest acer drivers. Now the tab isn't showing up on the pc either. I know some others have had similar problems but no solution was found in the other threads and considering that I probably screwed up badly somewhere along the way I thought I'd start this thread where you can all point out my ignorance and stupidity without bothering anyone else :silly:
Any help?
Any advice at all would be great, I have reinstalled drivers for tab but still no go! I'm on a old xp pro laptop. Everything else connects to the usb port and the cable is working fine
If you can't get to Recovery, you will need to reflash that.
But first thing is first. And that's the driver issue.
With the tab plugged into the PC, go to Device Manager, and see if it reflects there. If not, you will probably have to reload the drivers. You have a choice, which is the Acer Driver installation, or you can try the Google USB Android drivers. Generally I have had not much luck letting windows search the PC, so I usually install them manually. You can either;
a. Direct device manager to look in a specific folder for the google drivers, or;
b. In Device Manager, when you choose update drive, use "select from list" and see if the acer drivers show up there.
Generally, when you install the acer drivers, you should "right" mouse click the install file and select "run as administrator".
MD
Thanks md will give it another go
My device manager has no option for select from list or update drive, just scan for new hardware. Nothing shows up for acer.
irishmoe said:
Thanks md will give it another go
My device manager has no option for select from list or update drive, just scan for new hardware. Nothing shows up for acer.
Click to expand...
Click to collapse
Ok, now I run Win 7. But XP should be similar.
Are you saying in device manager, you do not have a device with an exclamation mark when you plug the tab in???
If you do, then right click the exclamation mark, select properties. Then the Tab "driver". Next, select "update driver". Then, "browse my computer for drivers". You should get the option to "select from a list".
If your PC does not detect the tablet at all when you plug it in, then it';s a different issue. It's what we call a USB Brick. At first guess. Usually easy to fix on the 500.
Can you start your tablet in APX mode? hold the pin reset, press and hold pwr. Count to 3, and release pwr, then 1 second later, release the pin reset. You should have a black screen with the pwr lite on.
I'm thinking you might want to do the manual flashing of the bootloader + 1.7.3 recovery. Obviously the bootloader V8 flashed, or it wouldn't work at all. Civato has instructions for manual flashing of the bootloader and recovery. Note that I HOPE you wrote down your UID number somewhere. As you will need to convert it to the SBK.
MD
EDIT. One more note. When you boot to the bootloader menu, in your case, probably the only option that will work is "fastboot mode". When you select it, the menu should go away, and it should say "fastboot mode". Then plug into PC and see if windows detects it in device manager. If so, you can fastboot a recovery image to it. Note, that for fastboot to work, you must have the Android SDK installed on your PC. Because you will have to run the fastboot commands from a command window. But for now, check to see if you get to fastboot mode on the tablet.
Sorry I can't spend a lot of time, as it';s late in moscow. Job tomorrow. But Skirlaz_CZ can give you the commands to fastboot a recovery in his bootloader thread.
Thanks MD I can get into fastboot mode so I'll try that one first. I didn't write and numbers down unfortunately. I was following a thread on tegraowners to install the bootloader which made no mention of making records( I'm a simpleton that needs to be led by the nose)
I appreciate your input
irishmoe said:
Thanks MD I can get into fastboot mode so I'll try that one first. I didn't write and numbers down unfortunately. I was following a thread on tegraowners to install the bootloader which made no mention of making records( I'm a simpleton that needs to be led by the nose)
I appreciate your input
Click to expand...
Click to collapse
Ouch! No UID numbers. That hurts. Look in your old CWM recovery backups (if you have) on your EXT SD Card. If you were at one time running a more recent version of CWM, You might have them in the recovery folders. The more recent recovery programs in the backup folders, it's called UID.txt. You have to have this if you use NVFlash. No way around that.
With Fastboot, you don't need it, as you will fastboot the recovery image. If successful, that should allow you to boot to recovery, and flash one of the custom roms. Make sure you do your wipes as in the Rom install instructions. I use CWM 1.7.3 (I've been too busy to try EZTerry's or the TWRP versions. But CWM works good so far.
If not, well, there;s always the update.zips to get a stock ICS on your tab.
Either way, we'll get you running, so don't worry. Just takes a little time between time zones, work, and family
MD
Moscow Desire said:
Either way, we'll get you running, so don't worry. Just takes a little time between time zones, work, and family
MD
Click to expand...
Click to collapse
You're not wrong there! I'm doing the whole ikea/home improvement thing with the family today. I'll try the fastboot later
Again I really appreciate the help.
Ok MD so the fastboot doesn't work at all. I installed adb using knives and forks and that couldn't pick up the tab for drivers installation. My head is wrecked! checking backups for numbers now
0x037c62074 and a few more got it
Edit: farkin idiot I just noticed the sdk requirement! Will install sdk and give fastboot another whirl
irishmoe said:
Ok MD so the fastboot doesn't work at all. I installed adb using knives and forks and that couldn't pick up the tab for drivers installation. My head is wrecked! checking backups for numbers now
0x037c62074 and a few more got it
Edit: farkin idiot I just noticed the sdk requirement! Will install sdk and give fastboot another whirl
Click to expand...
Click to collapse
HA HA! Yep, gotta have the SDK for ADB and Fastboot. I posted some instructions yesterday about flashing recovery via fastboot.
http://forum.xda-developers.com/showpost.php?p=29294671&postcount=6
You should be able to do it if you already have V8 Bootloader.
MD
Nice one MD going to try it out.
irishmoe said:
Thanks MD I can get into fastboot mode so I'll try that one first. I didn't write and numbers down unfortunately. I was following a thread on tegraowners to install the bootloader which made no mention of making records( I'm a simpleton that needs to be led by the nose)
I appreciate your input
Click to expand...
Click to collapse
I'll add that then - good idea
EDIT: It is done. And it is now foolproof. If you read that forum post now and STILL don't save your UID then I worry about you http://forum.tegraowners.com/viewtopic.php?f=30&t=388
irishmoe said:
Nice one MD going to try it out.
Click to expand...
Click to collapse
Waiting for an update
blackthund3r said:
I'll add that then - good idea
EDIT: It is done. And it is now foolproof. If you read that forum post now and STILL don't save your UID then I worry about you http://forum.tegraowners.com/viewtopic.php?f=30&t=388
Click to expand...
Click to collapse
Ha ha cheers mate! Like I said I'm a simpleton but not quite that bad.
Thanks for all the good work. I was actually following another thread stupidly when I should have been following yours.
MD - was away for a few days, just back but have had a few beers so not doing anything stupid tonight. Got sdk installed.
MD - Have you a link to download cwm 1.7.3 img? The download link in tegra won't work for me.
edit - nevermind I usedthe recovery skrillax suggested in his thread. Problem is the pc is not picking up the tab at all. Just says waiting for device
irishmoe said:
MD - Have you a link to download cwm 1.7.3 img? The download link in tegra won't work for me.
edit - nevermind I usedthe recovery skrillax suggested in his thread. Problem is the pc is not picking up the tab at all. Just says waiting for device
Click to expand...
Click to collapse
Sorry I was away. Did everything work ok for you? All running? (been trying to chase down my rom issue)
If it says "waiting for device", then you need to check your device manager, and make sure the correct driver is recognized. (APX, Fastboot, Recovery, Download, etc). Usually, I can change drivers while this is happening, and the process will complete.
MD
ok I don't mind admitting that I'm totally lost here. Nothing resembling the tab is showing up device manager so how can I check the drivers?I've been playing around with device manager for a while now and I can't find any way to do what you suggested
I've uninstalled and reinstalled the drivers again and again. Nothing! Could it have anything to do with me having a gateway? I wouldn't think so because they're the same inside.
Righto, no matter what I do the tab won't show up. Obviously can't check the drivers without the device showing up so I really am at a loss.
Even if I try the manual flash from civatos thread I will still come up with the same problem. No device no can do
irishmoe said:
Righto, no matter what I do the tab won't show up. Obviously can't check the drivers without the device showing up so I really am at a loss.
Even if I try the manual flash from civatos thread I will still come up with the same problem. No device no can do
Click to expand...
Click to collapse
be worth checking you still have usb debugging enabled m8
EDIT: The only other thing i can think of is to put yr tab in apx mode manually (press and hold reset button then press and hold power button, when the pwr lite comes on count 3 seconds and then release it, hold reset another second and then let that go) - you should have a black screen and power lite is on) now connect yr cable and see if the pc picks up the acer boot/recovery driver under usb controllers .
If these drivers install then I'd attempt a rollback to HC using an EUU, at least this method depends on yr pc not seeing yr tab. I'd only attempt this tho if the boot/recovery driver is installed and listed in dev. manager.
dibb_nz said:
be worth checking you still have usb debugging enabled m8
EDIT: The only other thing i can think of is to put yr tab in apx mode manually (press and hold reset button then press and hold power button, when the pwr lite comes on count 3 seconds and then release it, hold reset another second and then let that go) - you should have a black screen and power lite is on) now connect yr cable and see if the pc picks up the acer boot/recovery driver under usb controllers .
If these drivers install then I'd attempt a rollback to HC using an EUU, at least this method depends on yr pc not seeing yr tab. I'd only attempt this tho if the boot/recovery driver is installed and listed in dev. manager.
Click to expand...
Click to collapse
Ok ok boot/recovery driver? You've lost me there chap! Xp device manager is showing nothing tab related. Tell me what to do and I'll give it a blast.
I'm using the regular usb slot as opposed to the mini cause I've no mini cable. That should be ok right?

[Q] a2107 adb recovery?

I screwed up.
I just experimented with enabling phone mode on that device, after i had it rooted.
so i modified recomipled and signed the framework.apk but i had a typo in my script and the name of the new file is botched up.
My device instantly crashed of course. This is pretty forward to fix once i get access to /system in any way.. also i have a backup of that file on the pc.
Needless to say, without framework it wont boot. I *can* however get into recovery. but there is no adb option in there.
while i am in that menu, the pc recognices the device as "lenovo adb composite" but the adb does not seem to recognize it.
The drivers are set up correctly. the adb worked on the fully running device before the crash. (obviously, since i rooted it that way)
Any suggestions?
and what is the recovery menu point "download cap-firmware" doing exactly?
any help and potential helpfull links very much appreciated, i googled half the night and found next to nothing..
Solved
Solved.
appearantly the decive announces itself slightly differently in this mode.
solution:
The aur version of adb (arch linux) handles this correctly. no drivers needed.
so for all having problems, with this device, my recommendation for now: archlinux or archbang bang live, "packer -S adb" .. "adb shell"
Hi,
you managed to root your A2107A? I've been googling for two weeks and I didn't figure out... Could you please me tell me how you achieve that?
Cheers
da root
FiltroMan said:
Hi,
you managed to root your A2107A? I've been googling for two weeks and I didn't figure out... Could you please me tell me how you achieve that?
Cheers
Click to expand...
Click to collapse
sure thing.
as always first check, that all batteries are charged. (laptop, tablet, ..)
** first you need to enable usb debugging in the menu.
** then plug it in and check on windows that it is recognized properly.
it should show up as "lenovo(or android) composite adb interface" somewhere in device manager.
otherwise tell me, and i'll try to find the proper drivers. (on archlinux it worked without drivers, so if you fail on windows for some reason, that is an option too,)
** after that you need this:
https://dl.dropbox.com/u/31794772/Root_with_Restore_by_Bin4ry_v15.rar
i don't remember where exactly i found this on xda-deverlopers. credits to whoever put that up in the first place, sry.
** choose option 1 in the script.
follow the instructions on the tool. it will ask you at some point to push restore on the tablet, no worries, this is completely intended you wont loose any data if it works right. just leave all fields blank and hit restore.
congrats, you are now rootet. the device might require a reboot and might do that from itself (dont remember)
:good:
ps: doing backup like this first is generally a good idea: http://forum.xda-developers.com/showthread.php?t=1420351
I have the a2107-F will this root process work too?
valravn said:
I screwed up.
I just experimented with enabling phone mode on that device, after i had it rooted.
so i modified recomipled and signed the framework.apk but i had a typo in my script and the name of the new file is botched up.
My device instantly crashed of course. This is pretty forward to fix once i get access to /system in any way.. also i have a backup of that file on the pc.
Needless to say, without framework it wont boot. I *can* however get into recovery. but there is no adb option in there.
while i am in that menu, the pc recognices the device as "lenovo adb composite" but the adb does not seem to recognize it.
The drivers are set up correctly. the adb worked on the fully running device before the crash. (obviously, since i rooted it that way)
Any suggestions?
and what is the recovery menu point "download cap-firmware" doing exactly?
any help and potential helpfull links very much appreciated, i googled half the night and found next to nothing..
Click to expand...
Click to collapse
valravn,
Can you please elaborate a bit on modifying the framework.apk?
The solutions I found require flashing a whole rom which I wouldn't like to do (looks like I got the tablet with the latest FW).
Your help will be much appreciated.
Thanks.
I think i bricked my ideatab. i tried to update the CWM via ROM Manager unfortunately when i restarted the device, it got stuck on the menu showing "Press and select the Country Code". after pressing and selecting one of the choices it will just restart and return to the same menu.
Can you please help me guys? thanks in advance.

Nexus 7 stuck on fastboot screen/bootloop...bricked?

Hi
Tried to flash a new kernel and all seemed ok (flashed phones and nexus 7 few times now) when I came out of flashing I hit a bootloop, I though nothing of it and tried to restart....same issue, so next I tried to go into cw recovery, no joy, it will not show again.
I can power/vol keys to android fastboot screen with start power restart boot and so on but if I choose recovery nothing happens, I am stuck with either a bootloop or stuck on android fastboot screen and not able to move from either.
I have tried the toolkit and most other things but the problem is it cannot see my nexus 7, even after installing drivers and so on the toolkit (top right) does not list my nexus as found, because of this I cannot reflash any stock firmware/recover/reflash cwr.
Not sure how I can get around this if my pc cannot see the nexus 7.
Thanks for any help
voodoochild2008 said:
Hi
Tried to flash a new kernel and all seemed ok (flashed phones and nexus 7 few times now) when I came out of flashing I hit a bootloop, I though nothing of it and tried to restart....same issue, so next I tried to go into cw recovery, no joy, it will not show again.
I can power/vol keys to android fastboot screen with start power restart boot and so on but if I choose recovery nothing happens, I am stuck with either a bootloop or stuck on android fastboot screen and not able to move from either.
I have tried the toolkit and most other things but the problem is it cannot see my nexus 7, even after installing drivers and so on the toolkit (top right) does not list my nexus as found, because of this I cannot reflash any stock firmware/recover/reflash cwr.
Not sure how I can get around this if my pc cannot see the nexus 7.
Thanks for any help
Click to expand...
Click to collapse
try to flash recovery again via fastboot...or doesnt pc recognize divice at all?
S.R
shivasrage said:
try to flash recovery again via fastboot...
S.R
Click to expand...
Click to collapse
Hi
I cannot flash anything. On the fastboot screen I can scroll up and down powr off/start/recovery....if I choose any (apart from power off) nothing happens.
When I hook it up to my pc it cannot see it, nexus 7 toolkit also cannot see it, it does not list it as found so I cannot flash anything on to it, if I try it just says waiting for device, tried other things and same thing either waiting for device or asks if fastboot installed.
voodoochild2008 said:
Hi
I cannot flash anything. On the fastboot screen I can scroll up and down powr off/start/recovery....if I choose any (apart from power off) nothing happens.
When I hook it up to my pc it cannot see it, nexus 7 toolkit also cannot see it, it does not list it as found so I cannot flash anything on to it, if I try it just says waiting for device, tried other things and same thing either waiting for device or asks if fastboot installed.
Click to expand...
Click to collapse
f****
have you tried flashing factory image from google site.with flash all-sh?
shivasrage said:
f****
have you tried flashing factory image from google site.with flash all-sh?
Click to expand...
Click to collapse
I have a image ready but not able to flash....but what is flash all-sh? trying to search for it, is it a tool to force flash?
voodoochild2008 said:
I have a image ready but not able to flash....but what is flash all-sh? trying to search for it, is it a tool to force flash?
Click to expand...
Click to collapse
no its included in the factory image to flash all i one so it looks like for the nexus 4:
flash-all .....its a windows batch image with all included.... try this
S:R.
shivasrage said:
no its included in the factory image to flash all i one so it looks like for the nexus 4:
flash-all .....its a windows batch image with all included.... try this
S:R.
Click to expand...
Click to collapse
Thanks....but still get waiting for device, thats the problem, nothing seems to see it so I cannot flash anything to it.
You are already at the bootloader screen. Use your computer to fastboot flash a new kernel. Being able to get into recovery has nothing to do with it. You screwed it up flashing a kernel. Its likely thats all you need to fix it. Flash a new one with fastboot.
You are already at the bootloader screen. Use your computer to fastboot flash a new kernel. Being able to get into recovery has nothing to do with it. You screwed it up flashing a kernel. Its likely thats all you need to fix it. Flash a new one with fastboot.
i thought the same as you but fastboot isn recognizig N7 anymore....always wating for device....
Hemidroids said:
You are already at the bootloader screen. Use your computer to fastboot flash a new kernel. Being able to get into recovery has nothing to do with it. You screwed it up flashing a kernel. Its likely thats all you need to fix it. Flash a new one with fastboot.
Click to expand...
Click to collapse
Downloaded the fastboot exe but unsure what it needs to work as when I click on it a run box opens for like half a second and then closes, dont get a chance to read what it says, think I will have to read up on it.
[/COLOR]
voodoochild2008 said:
Downloaded the fastboot exe but unsure what it needs to work as when I click on it a run box opens for like half a second and then closes, dont get a chance to read what it says, think I will have to read up on it.
Click to expand...
Click to collapse
read this... i hope you can follwow that easily like me...
greets S.R.
http://dottech.org/21534/how-to-ins...ows-computer-for-use-with-your-android-phone/
voodoochild2008 said:
Downloaded the fastboot exe but unsure what it needs to work as when I click on it a run box opens for like half a second and then closes, dont get a chance to read what it says, think I will have to read up on it.
Click to expand...
Click to collapse
EXE? doh.......Windows.......sorry cant help.
shivasrage said:
[/COLOR]
read this... i hope you can follwow that easily like me...
greets S.R.
http://dottech.org/21534/how-to-ins...ows-computer-for-use-with-your-android-phone/
Click to expand...
Click to collapse
Tried some of that already but will try again tomorrow.
Thanks for help with this and will post tomorrow if I can sort it. cheers
I hope this instructions can help you a little bit...but if it fails don´t be angry its all I can think of ...at this time ....merry christmas
S.R.
http://forum.xda-developers.com/showthread.php?p=31931117:D
Sent from my Nexus 7 using xda premium
Well after using bits of jrom flasher and nexus toolkit I got it working again, main issue was making the tablet seen, abd and fastboot would not show device.
All up and running again THANKS TO ALL WHO HELPED
voodoochild2008 said:
Well after using bits of jrom flasher and nexus toolkit I got it working again, main issue was making the tablet seen, abd and fastboot would not show device.
All up and running again THANKS TO ALL WHO HELPED
Click to expand...
Click to collapse
How did you get it to work? I have problem getting my device to be recognized. Stuck on boot loop too..
Hey man, how did you get your computer to recognize your device? Would be great to finally fix mine as this is the same exact problem -- computer doesn't recognize it even though in fastboot.
Quacker245 said:
Hey man, how did you get your computer to recognize your device? Would be great to finally fix mine as this is the same exact problem -- computer doesn't recognize it even though in fastboot.
Click to expand...
Click to collapse
I don't understand exactly what you are trying to do, sorry: you said the pc does not see the nexus, "even thought in fastboot".. If you say even thought, it seems to me that you are able to access Android itself or maybe recovery? In that case I can't see the issue.. Sorry my fault, non english mother tongue
But, if have the device soft bricked and you are able to enter ONLY the bootloader (that is what we call often fastboot), then you should start to remove the not working fastboot drivers installed into your PC: launch the nexus in fastboot mode, go to Device Manager into your PC and search for a driver with an yellow exclamation point. This issue is very common so I hope that you have it, too.. So, uninstall that driver, then unlink the nexus from your PC; after a few seconds attach it to another USB port and see if Windows install a driver (it should). If this new driver doesn't work, too, or if Windows does no install any, try this one: http://forum.xda-developers.com/showthread.php?t=1426502
Hope it helps, let us know, see you!
EDIT: also, if you still have no luck, you should find a Linux or Mac PC/laptop and download the adb/fastboot binary files for that OS; this will definitively solve your driver issue ( @#ò#@!"@# Winzozz )
brainvision said:
I don't understand exactly what you are trying to do, sorry: you said the pc does not see the nexus, "even thought in fastboot".. If you say even thought, it seems to me that you are able to access Android itself or maybe recovery? In that case I can't see the issue.. Sorry my fault, non english mother tongue
But, if have the device soft bricked and you are able to enter ONLY the bootloader (that is what we call often fastboot), then you should start to remove the not working fastboot drivers installed into your PC: launch the nexus in fastboot mode, go to Device Manager into your PC and search for a driver with an yellow exclamation point. This issue is very common so I hope that you have it, too.. So, uninstall that driver, then unlink the nexus from your PC; after a few seconds attach it to another USB port and see if Windows install a driver (it should). If this new driver doesn't work, too, or if Windows does no install any, try this one: http://forum.xda-developers.com/showthread.php?t=1426502
Hope it helps, let us know, see you!
EDIT: also, if you still have no luck, you should find a Linux or Mac PC/laptop and download the adb/fastboot binary files for that OS; this will definitively solve your driver issue ( @#ò#@!"@# Winzozz )
Click to expand...
Click to collapse
Hi sorry for not being clear. Basically I am only allowed to access the bootloader and my device is soft-bricked. I'm pretty sure I tried uninstalling and reinstalling the drivers about a year ago when I originally did it, but I'll try again and let you know. Thanks!

[Q] N4 Broken Screen, Desperate, Kit Kat 4.4.2, Stock Everything, No USB Debugger

Hello,
I just came back from my honeymoon and all of my pictures are on my N4. Of course before I pull the pictures, I drop the phone is the screen is cracked and the touch does not work anymore.
I'm really desperate to get these pictures. I've read all over online but my problems are this with all of the help out there:
My phone is the latest 4.4.2 on T Mobile.
It has stock EVERYTHING (bought straight form google), and the USB debugger is not enabled. (next phone I get this is the first thing I'm enabling.
I've been trying to follow instructions online but a lot of items have changed between last year and Kit Kat now and some steps such as unlocking the bootloader seems to wipe out everything on my phone.
I've been trying to use ADB and Freeboot but really havent gotten anymore.
I've also read that I can maybe use a usb mouse to substitute and unlock my phone? USB OTG? How do I know if my nexus has that enabled?
I'm even considering getting a new screen so I can try to replace the current one and get my photos. I dont care what happens to the phone but the pictures are priceless to me.
Is there any thread or guide that incorporates 4.4.2? the more detail the better of course.
Much thanks in advance.
have u tried getting into stock recovery ?, and pulling files with ADB ??
i think stock recovery has ADB enabled by default ...
Shubhamqweasd said:
have u tried getting into stock recovery ?, and pulling files with ADB ??
i think stock recovery has ADB enabled by default ...
Click to expand...
Click to collapse
Thank you for the quick reply.
I do manage to get into stock recovery, I get past the green guy lying on his back, though the method isnt always reliable. I get to the screen where it gives you the options to reboot, apply update from ADB etc.
I select to apply ADB file and it says "now send the package you want to apply..."
However, when I go into the command prompt on my PC, and type ADB devices, and nothing shows.
Do I need to install the drivers that makes the phone a ADB device and not the normal MTP device?
Thank you.
zhanism said:
Thank you for the quick reply.
I do manage to get into stock recovery, I get past the green guy lying on his back, though the method isnt always reliable. I get to the screen where it gives you the options to reboot, apply update from ADB etc.
I select to apply ADB file and it says "now send the package you want to apply..."
However, when I go into the command prompt on my PC, and type ADB devices, and nothing shows.
Do I need to install the drivers that makes the phone a ADB device and not the normal MTP device?
Thank you.
Click to expand...
Click to collapse
Yes u need proper adb setup on ur pc ..
U can find and install nexus 4 drivers with adb setup from this forum threads..
After u have done that check if you can find ur device using adb from recovery..
If u can find the device by recovery .. Then rest is easy ..
Just follow this link afterwards
http://forum.xda-developers.com/showthread.php?t=2449652
Shubhamqweasd said:
Yes u need proper adb setup on ur pc ..
U can find and install nexus 4 drivers with adb setup from this forum threads..
After u have done that check if you can find ur device using adb from recovery..
If u can find the device by recovery .. Then rest is easy ..
Just follow this link afterwards
http://forum.xda-developers.com/showthread.php?t=2449652
Click to expand...
Click to collapse
Thank you for your help. However, while I have gotten ADB to recognize and list the device, I still have the same problem in that I cant unlock my phone using the screen and so when type something like "adb pull /sdcard/dcim/, i get "error closed"
Is there anything more I can do? These photos are priceless to me.
Thanks.
zhanism said:
Thank you for your help. However, while I have gotten ADB to recognize and list the device, I still have the same problem in that I cant unlock my phone using the screen and so when type something like "adb pull /sdcard/dcim/, i get "error closed"
Is there anything more I can do? These photos are priceless to me.
Thanks.
Click to expand...
Click to collapse
Get the screen replaced, or do it yourself. ADB in the stock recovery is very limited to "adb sideload" commands only, you can't pull files this way.
acejavelin said:
Get the screen replaced, or do it yourself. ADB in the stock recovery is very limited to "adb sideload" commands only, you can't pull files this way.
Click to expand...
Click to collapse
I have same problem with broken screen, i bought for 56$ full kit on ebay, no need separate glass from screen. took me 1h20min, never done before but what a relief seeing everything working
You do not need USB debugging to transfer files. On windows, open file explorer and with your nexus 4 connected it should appear on the left side as Nexus 4. Or if you have osx use http://www.android.com/filetransfer/.

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