Hello,
I recently successfully installed Windows Phone 7 rom onto my HTC HD2. The phone was working fine and would charge the battery when connected to a dedicated charger on the wall plug as well when it was plugged into another computer. I recently attempted to plug the phone into the computer via USB only to find it wouldn't recognize it ,no prompts on the computer or the orange light on the phone. I turned off the phone, removed the battery for several minutes, I started the phone up again and it would boot into Windows Phone 7 normally without any errors but still it would not be recognized by the computer or allow itself to be charged by an external battery power. I had read somewhere that if I where to select Mass Storage option off the bootloader that it would charge the battery and create a partition on the computer. Huzzah! the computer recognized the partition, but the battery still wasn't charging. Going through multiple threads I have read that it might Magldr others say it's the windows phone 7 rom not being fully stable yet and messing with the battery settings, I don't know where to go from here, i'm hoping someone can help. Here are the direct steps that I took since I got the phone:
Phone: HTC HD2 T Mobile
1. Unlock the phone (successfully)
2. installed HSLP3
3. Flashed Radio leo 2.15.50.14
4. Installed/Flashed MAGLDR113
5. Using USB Flasher installed the LEO70_ROM
That's all no settings afterwards were messed with, and Windows phone 7 came up normally and worked perfectly.
Side note: I have tried multiple micro USB cords and different Socket Wall Chargers.
Any assistance is greatly appreciated.
Thanks,
Mr_Pickles
I've yet to find out why it does this, or a step by step guide to fix it, however it is fixable, it will charge battery if you boot to magldr mode, no light will come on but it does charge, mine done this before and came out of it seemingly by its self, or more likely by a combo of things I did, anyhow, charge it up in magldr first, also try using usbdview to list all your USB devices, delete them all, windows can get confused some times
well fancy that, just happened to me again there, ok, so was at work, and my phone wouldnt take a charge via the socket or USB port on a working PC, like i said before it does charge via magldr
anyhow, just got home and plugged it in to my PC that i know it syncs with and all was fine.
So for you i'd definitely suggest deleteing your USB devices to make sure there is no conflicts, charge up your phone via a wall charger in magldr, then get it working with your PC, perhaps then you will get it working,
Thanks, it still isn't charging when it's on MAGLDR, i'm starting to think the battery might be dead. Either way I've ordered an external battery charger and an extra battery, hopefully that solves my issue. Although it still perplexes me why when attempted to connect to a computer it doesn't recognize it.
Unfortunately at this point the battery is completely drain so I can't do anything until the charger and the extra battery comes, but until then i'll keep digging for the answer.
Cheers,
Mr_Pickles
Mr_Pickles said:
Thanks, it still isn't charging when it's on MAGLDR, i'm starting to think the battery might be dead. Either way I've ordered an external battery charger and an extra battery, hopefully that solves my issue. Although it still perplexes me why when attempted to connect to a computer it doesn't recognize it.
Unfortunately at this point the battery is completely drain so I can't do anything until the charger and the extra battery comes, but until then i'll keep digging for the answer.
Cheers,
Mr_Pickles
Click to expand...
Click to collapse
ah yes that is a problem, youve got the charger coming so its a bit late now but that happened to me once, if its just a bit too dead to get you to magldr to charge then i found if you pop it out, wrap it in a cloth and warm it up, do not place it directly on a heat source, by warming it up a bit it helps give it a wee nudge with its chemical reactions inside, potentially enough to get in to magldr.
there is no way of knowing if its charging via magldr other than it not turning off. but with an external on the way you will be fine.
as for it having issues
im guessing its because the battery controller on the HD2 isnt the same as the controller from where the ROM was pulled, meaning whilst its compatible, its not ideal, the not connecting thing could be a symptom of this, im just guessing here but if lets say the battery controler forgets what its doing could that knock out the who USB connection, the USB ports on the computer will have com ports connected whilst the charger will only have the power ports connected, perhaps a combo of all of these things is the reason
but what id do is get it charged first, use the program USBDVIEW (google it) and remove all USB devices associated with a connection to a HUB reboot and connect the HD2 (fully charged) to a different port than usual. it should install drivers and away you go!
Ok! So i got the charger and did all the steps below but still nothing, the computer won't recognize the phone through USB unless I go to Mass Storage option off of MAGLDR. Any thoughts?
The Windows 7 OS runs just fine. It's the connection to the computer/charger through USB that is the problem. Even when loading the boot loader (multi color screen) and then connecting the USB it won't recognize it, the bottom stays on "Serial".
Any help would be much appreciated.
Thank you,
Mr_Pickles
righty, this could be a challenge,
so usb storage mode IS detected when you plug it in with magldr
therefore we can rule out hardware issues
So physically it will connect, that leaves several different possible issues
first things first, you didnt mess about with USB tethering did you? i really hope you didnt and if you did you better start praying your phone is still unlocked and will allow unsigned apps, and that you still have the USB tethering app installed!
next, WP7 software issue, something is buggered stopping it for connecting,
unlikely if you cant connect via the SPL
Desktop Driver issue.
if there is any USB conflict on your PC it can create many problems for you did you try uninstalling all USB devices using USBDVIEW in admin mode, then try plugging it in again?
ok some other questions, does MAGLDR allow you to go to and use USB flasher mode, as if you where updating you WP7 ROM? does your PC connect and install a device driver when you plug it in? (make sure you deleted all USB devices before hand)
lastly, do you have access to another computer that has NOT had this phone plugged in to?, purely to see if it will get detected in SLP mode or ideally in WP7 itsself? this would obviously rule out your whole PC and would help pinpoint the issue!
Hi Dazza,
Here are the answers to your questions:
Q: first things first, you didnt mess about with USB tethering did you? i really hope you didnt and if you did you better start praying your phone is still unlocked and will allow unsigned apps, and that you still have the USB tethering app installed!
A: I did not mess with the USB tethering, my phone is still unlocked.
Q: Desktop Driver issue.
if there is any USB conflict on your PC it can create many problems for you did you try uninstalling all USB devices using USBDVIEW in admin mode, then try plugging it in again?
A: Yes I did, it still did not connect to the device, not allowing to view it as a storage device or charge the phone. The phone also does not recognize that it has been plugged in to the computer.
Q: ok some other questions, does MAGLDR allow you to go to and use USB flasher mode, as if you where updating you WP7 ROM? does your PC connect and install a device driver when you plug it in? (make sure you deleted all USB devices before hand)
A: Yes it does, it installs the drives and the phone shows the connection has been made through USB.
Q: lastly, do you have access to another computer that has NOT had this phone plugged in to?, purely to see if it will get detected in SLP mode or ideally in WP7 itsself? this would obviously rule out your whole PC and would help pinpoint the issue!
A: Yes I have. I tried 3 different computers and none of them recognize the phone.
Side notes:
- I have flashed an Android ROM to see if that would fix the error so I can switch back to WIN 7, but even with the android ROM the computer still does not recognize the phone being plugged in, nor does the phone recognize it has been plugged into the computer.
- When I have gone to the bootloader (multi color screen) in my attempts to bring back the phone to it's orginal state, it still does recognize the phone and won't let me install the base OS and radios for the phone.
I hope this info helps, man i'm really starting to regret getting this phone.
Thanks,
Mr_Pickles
ok, think we need to start again, its sounding all a bit dodgy, MAGLDR is working but the bootloader and WP7 itsself isnt....
you tried reflashing android to no effect
the only common denominator is the SPL/HSPL and the Radio
However because bootloader isnt working in USB mode you cant flash....
SO, next attempt is.....
Format a small SD card, format it as FAT32 or if that fails try FAT16 (512MB card) this is the tricky bit because some cards will not work.
Downloaded the original ROM for your device, usually a .exe file
Open the exe with a zip/rar program,
Extracted RUU_signed.nhb,
Move ruu-signed.nbh to your sd card,
Rename ruu_signed.nbh to leoimg.nbh
Then power phone off,
pop your small SD card with leoimg on in your HD2
Press and hold volume down, tap power but contiue to hold vol down.
The phone should boot into bootloader mode, and it "should" automatically discover there is a leoimg.nbh file on your sd card and ask you to flash.
If it is the wrong image, you should get a failed install message, but if you phone does nothing at all then either the sd card is faulty or the sd card reader is faulty (unlikely if WP7 was using it), or the nbh file is corrupt.
Faulty SD cards could be format issues, ideally you would format the card in the device itsself but you dont have that option unless android will let you do it, which is always an option!
Righty, hopefully that will reset your device SPL radio and all to the original state, if it works and you can get 6.5 working again see how you get it, its a hunch but i reckeon the SPL got buggered up, i cant see any other logical reason for it not to work, think of the SPL as a BIOS on your PC, if you turn USB off in your BIOS you dont have usb working in the OS.
Just to add to the topic here. If you can still transfer data but not charge or receive power via USB does not mean it is not a hardware issue. It just means the pins for data transfer in the USB port are working. A standard USB port has 5 pins in it (this includes micro and mini USB ports) only 2 of the pins are for power transfer the other 3 are for data transfer.
Also if you do not have ActiveSync or WMDC installed on the computer you connect to via USB while in bootloader you will not get the HTC USB sync (USB in white bar of bootloader) connection because these programs have the USB drivers for the HTC USB sync connection, they are not preloaded on the HD2. Therefore the do not auto install when you plug your USB cable in and are in bootloader. I learned this thechard way.
The OP had posted in the HD2 General forum too and I had advised them to try to use a multi meter to test the battery pins while the charger is plugged into the HD2 to comfirm voltage is getting to the battery. I also advised them to try and flash back to a Windows Mobile ROM to see if charging was possible. Both of these things would rule out a hardware issue.
MAGLDR still has this charging bug, it will let you charge while in USB Mass Sty bit it is not charging the battery correctly and this why, quoted straight from the first post inthe MAGLDR thread.
Battery controller inside LEO needs runtime control during charge, it implemented in OS.,
Click to expand...
Click to collapse
The runtime control means that MAGLDR can not control the rate at which the battery is charged which is not good for 2 reasons. One too little (too slow) of a charge rate or too much (too fast) of a charge rate is detramental to your battery life and battery chargeablity. The secound is to much voltage going to the battery can cause the Li-Ion battery in the HD2 to explode. Now reason number 2 is a very unlikely senerio as all common USB type wall chargers only put out 5.0v to 5.1v and that is safe for Li-Ion batteries, but there is still the risk. But as the quote says the "run time control" is implamented by the OS so when you charge with your HD2 booted into the OS it is safe and not harmful to your battery.
I hope the OP gets their charging issue worked out and I hope it is not a hardware issue.
indeed, the power pins as you pointed out could be the issue, im trying not to complicate things at the moment because even if it was, it should still commence coms to the computer, it does connect via magldr so we can assume that firstly the cable is ok on the data lines, secondly the PC is able to detect the device meaning the device itsself is working
We can also assume that if all USB devices have been removed and no ActiveSync or WMDC is installed then Windows would still detect new hardware but will fail to install it, if the drivers were present and it connected we'd have fixed half the problem!
physically it can connect (magldr proven) but something is prohibiting it in bootloader and the OS, the PC isnt detecting it at all. I dont understand why magldr works and bootloader doesnt unless magldr is able to run its own form of bios, i dont know how it works so i couldnt be sure, so im running with a hunch that the HSPL/SPL is buggered as it wont connect to the pc in bootloader.... if we can flash via SD it will help rule that out.
aye the charger thing on magldr is concerning, but it will be ok to give it a short amount of juice to get to windows, overcharging is the issue, could potentially blow up but its unlikely, the plug charger should have a built in IC to knock it down to a trickle charge when it detects its reversing the polarity....should! lol
Thanks everyone, i'm planning on trying this out tonight when I get home and using the SD to bring it back to stock. Hopefully this solves the problem otherwise I'm thinking that T-Macgnolia is correct and one of the Pins in the USB is broken and would need to be fixed.
I really do appreciate all the effort you guys have given in your response.
Mr_Pickles
Mr_Pickles said:
Thanks everyone, i'm planning on trying this out tonight when I get home and using the SD to bring it back to stock. Hopefully this solves the problem otherwise I'm thinking that T-Macgnolia is correct and one of the Pins in the USB is broken and would need to be fixed.
I really do appreciate all the effort you guys have given in your response.
Mr_Pickles
Click to expand...
Click to collapse
its possible that the bootloader or the OS needs the power to be connected in order to function, you did say that you have tried different USB ports and a number of cables, the only other posibility would be that the pin on the phone its self is broken, thats going to be difficult to test.
do the SD thing first, if that doesnt work boot to android, note the battery level, get it to around 50%, then turn off the phone and boot to MAGLDR, you do not need to have it in USB storage mode or anyother mode, just leave it plugged in at the MAGLDR menu.
now the USB port on a PC will provide no more than 500mAh, so if you had 50% charge that would be about 600mAh in the battery, leave the phone plugged in to your PC in MAGLDR menu for an hour, that should give it no more than 1100mAh of juice, (it will actually be less than that as your screen will still be sucking juice)
if you use the 1A wall charger then only charge it for 30min, just to be on the safe side. (if you can i would recomend this one as it rules out any issues with data pins) and if its not working it wont completely drain your battery sitting there with the screen on
anyhow, boot back in to android and see what the battery level is indicating, if its gone up you know its charging, if its gone down you know it isnt, which may indicate a broken phone.
Good luck and keep us posted!
Success! Loading the stock ROM through the SD and finally my computer recognizes the phone! Thank you so much everyone for your help, I can't tell you how much I appreciate it.
Mr_Pickles said:
Success! Loading the stock ROM through the SD and finally my computer recognizes the phone! Thank you so much everyone for your help, I can't tell you how much I appreciate it.
Click to expand...
Click to collapse
no probs mate, thats why XDA dev is here!
i think its almost certain its a SPL issue, possibly got corrupted somehow, least you know its not hardware, i know this sounds a bit much after all you just went through but dont give up on WP7
Hi Guys,
I had exactly the same problem as Mr_Pickles.
I had tried reflashing the stock rom using the SD card method.
Everything installed normally, but after the flashing the HTC logo appears followed by the Radio version and other info shown in the bottom of the screen in red text.
Then the mobile reboots and keeps doing the same thing again and again.
Could someone help me on this please?
nvenon said:
Hi Guys,
I had exactly the same problem as Mr_Pickles.
I had tried reflashing the stock rom using the SD card method.
Everything installed normally, but after the flashing the HTC logo appears followed by the Radio version and other info shown in the bottom of the screen in red text.
Then the mobile reboots and keeps doing the same thing again and again.
Could someone help me on this please?
Click to expand...
Click to collapse
did you install HSPL? before doing anything or is it doing this restart after you reflashed your Stock ROM via the SD card
nvenon said:
Hi Guys,
I had exactly the same problem as Mr_Pickles.
I had tried reflashing the stock rom using the SD card method.
Everything installed normally, but after the flashing the HTC logo appears followed by the Radio version and other info shown in the bottom of the screen in red text.
Then the mobile reboots and keeps doing the same thing again and again.
Could someone help me on this please?
Click to expand...
Click to collapse
Hey Guys,
I experienced the same problem with the installation of wm6.5 stock rom (with having hspl 2.0 installed) as nvenon and couldn't find a solution.
dazza9075 said:
did you install HSPL? before doing anything or is it doing this restart after you reflashed your Stock ROM via the SD card
Click to expand...
Click to collapse
HSPL 2.0 installed, Stock rom installed via sd card method, still the same problem.
The point is that I read somewhere to just keep on flashing wp7, which works fine until operating XBmod-Yuki Rom Build 7004:
- While the wp7 works fine, the phone can't be recognized by any PC via USB, so i can't update the build via update cab sender
- But: The phone is detectable and chargable in bootloader mode, so now hardware issue?
I would appreciate any help.
Thanks in advance!
Hello,
I have had this problem in the past and it stumped me for a bit of time until I looked very carefully at how I was resetting the device. If you are not careful and with flashing etc you will be ripping the battery out all the time.
Look at the device with the battery out and you will see those 3 little pins. They need to be in a line for the battery to make decent contact with it. Over time if you are constantly taking out your battery it will bend them... you can just use your finger to straighten them.
That should do it. It got to a point I always take out my battery carefully now and make sure these pins are aligned before putting it back in.
okay, this is my time to post here.
using h2owner's wp7.8 rom I got a problems with sudden stop charging till once my battery dead completely.
after that I have (quoting my post from h2o thread):
"
it's not to abuse as we know all the risks we take testing roms, just asking for your advice:
1. I did install your latest rom
2. after some time it stopped charging at all
3. the problem is the phone got unable to charge under sd android as well.
4. at the end of story battery got dead - can't load magldr.
5. managed to direct power on it via red/black cables of usb to +/-
6.but the problem still the same - I can't charge battery via phone
7. and even more - can't enable usb via bootloader (tricolor) - serial only:
- usb flasher works only with wp7 rom install;
- magldr, hspl, task29 flash via usb flasher fails with critical error 0000001;
- naturally, can't flash winmo;
- usb storage works well."
1. nbh of the default os flashed fine
2. pins are aligned
3. issue is still here
please, help if you can
dimdimdim said:
okay, this is my time to post here.
using h2owner's wp7.8 rom I got a problems with sudden stop charging till once my battery dead completely.
after that I have (quoting my post from h2o thread):
"
it's not to abuse as we know all the risks we take testing roms, just asking for your advice:
1. I did install your latest rom
2. after some time it stopped charging at all
3. the problem is the phone got unable to charge under sd android as well.
4. at the end of story battery got dead - can't load magldr.
5. managed to direct power on it via red/black cables of usb to +/-
6.but the problem still the same - I can't charge battery via phone
7. and even more - can't enable usb via bootloader (tricolor) - serial only:
- usb flasher works only with wp7 rom install;
- magldr, hspl, task29 flash via usb flasher fails with critical error 0000001;
- naturally, can't flash winmo;
- usb storage works well."
1. nbh of the default os flashed fine
2. pins are aligned
3. issue is still here
please, help if you can
Click to expand...
Click to collapse
okay, now I got "00028002 not allow" error trying flash stock original rom from sd...
still no sd in bootloader, which changed to 1.42...
completely lost.
Hi,
So I upgraded from cm7.2 to 10 on my defy green lens. After a long and difficult upgrade, almost everything works - except any functionality of the usb port...
I'll jump right into the real deal: without usb connectivity, I cannot try to flash other SBFs to fix it! I can enter the bootloader screen just fine (says 09.10 on top, I believe that the last SBF I flashed was 3.4.2_179-002 , as recommended, before I rooted it, 2ndinit, and sucessfuly installed cm10) and the phone recognizes when I plug in a usb cable to it. but the computer always shows up a "usb device not recognized" error, and I tried on two machines, winxp/win7, and several different usb cables. I read some threads about crashing drivers between rsdlite and different tools motorola made; I never installed any of that junk but just to be on the safe side I removed all drivers and started fresh. still no go.
______________(That's the problem, now I'm just going to give more information about it)______________
The phone does not charge off a computer nor from a wall charger, with an assortment of different usb ports, cables and chargers. when connected to a computer (whether the phone is on or off) a "usb device not recognized" message comes up, on both windows xp/7 (different machines.) Seldom, when connected to wall charger, I can get the battery icon to show charging for about a second, (after a restart and plugging in to the pc briefly beforehand.) If I'm so lucky to make that happen, either it goes off in about one second, or it will change statues from charging to not charging several times very rapidly and then stay on not charging.
If the phone is off and I connect it, the white led sometimes come on, and then the phone comes on- presumably to go into battery charging screen, but instead it boots up normally. (this may be the correct behavior with this rom. idk.)
If you care for more information, let me elaborate about what I mean by "After a long and difficult upgrade":
I previously upgraded to cm10 (30/7/2012) CM10-20120730-NIGHTLY-mb525.zip,
but downgraded shortly after, back to 7.2. (I decided to wait for something a bit more functional)
Back then both the upgrade/downgrade went fine. This time I got into a bootloop (or stuck on bootscreen) after updating to 26/03/2013 God's version (oops I meant Quarx's version.)
Trying to use my nandroid backup for 7.2 I got a md5 mismatch and even after generating a new md5 file I couldn't restore /data.
Moving on. using CWM I tried installing some kernels (kernel-froyo-222-179.zip, and same thing but signed,),
then a fixed sbf (not full) 3.4.2_177-Fixed.NORDIC_DEBLUR.sbf,
and a very crappy sbf JRDNEM_U3_2.26.0_BLUR_P3_SIGN_SIGNED_USAJRDNEMARAB1B5TEL02A.0R_USAJORDANTELSTRA_P033_A017_M008_HWp3_Service1FF.sbf
** this one almost gave me a heart attack, after successful flash defy black screened with no LED indications. I was able to work my way into the bootloader and flash another SBF with rsdlite, without any indications from the device. lucky me.
Then I flashed the sbf I mentioned above and that's how I eventually got into cm10.
I can't even downgrade to stable cm7.2. Tried flashing a fresh install through CWM (wiping everything before and after, of course) and ended up stuck on boot screen. I don't know if it has anything to do with CG numbers or what, but I really can't figure out why CM7.2 wouldn't boot on the same SBF CM10 is booting fine right now.
I can't also share the SD card through CWM. (-> device not recognized)
I'm losing my marbles over here. Been working on it for two whole days and can't think of anything else I can try out... If I flashed the wrong rom using CWM I might get locked out because bootloader won't be any help!
:crying: cry for help... thanks :fingers-crossed:
Have you tried installing adb and the motorola drivers so you can try to communicate with the device?
Thanks for your word zero gravity!
Well, I thought that since "usb device not recognized", and since it shows up as unknown device under device manager (currently it disappears and reappears every 3 seconds, but I think this is a new behavior) I automatically assumed that I couldn't get proper communication with it! I guess I got to do some reading about adb commands any help with it would greatly be appreciated (No worries though I know how to google )
http://forum.xda-developers.com/showthread.php?t=1241935
Here's a simple guide for adb. Hopefully you can get some sort of communication to flash your stock sbf and start over again.
So, even though I have the drivers installed (Motorola_End_User_Driver_Installation_4.9.0_32bit.msi_.zip, and also installed MotorolaDeviceManager_2.3.9.exe,) Android SDK Tools installed, then I tried adb devices - nothing comes on.
by enabling ADB over network I can adb connect to the phone through wifi and go into shell. but I can't see how I can debug the buggy usb interface with network access.
Also tried starting the adb service through recovery - no go, won't show up.
(I plugged in a different Android phone (an Xperia), installed the drivers and had it running on adb usb in no time. So I'm doing it right.)
Any thoughts? are there commands to specifically listen and figure out what's coming from the usb port?
any other leads anyone may have? I'm listening!
Cheers, Shawn
The port must have suffered hardware damage. Examine the port for obvious conductivity hindrance. If not I'm afraid you'll have to get it repaired
As for cm7.2 after flashing just format to ext3 from boot menu(before this wipe dalvik cache), and after a reboot wipe data from stock recovery for good measure
Sent from my MB526 using xda premium
Well, thekguy seems to be on the right track.. I can fiddle around with the usb plug and get it to charge, So the problem seems to be mostly physical - if not completely.
I still can't get it to connect properly to the computer, but go figure which usb signal is dropping off. might be power, might be data.
After spraying it several times with contact cleaner the port is good enough for steady charge. No change about how it doesn't connect to a computer.
I feel like a dumbass, cus I already gutted the phone up a couple of days ago to try tracing conductivity paths through the port. the usb port is cast in plastic that is not removable from the pcb. There's no access to the USB pins, excepting four conducting points through the plastic right next to the port, but they are all connected to ground - they probably belong to a bracket that's holding the plastic to the pcb.
anyhow I did all that (I got closeup pictures if anyone's interested) but I wasn't able to check conductivity, and I didn't try fiddling with it after that. bah!
___________________________
Still wondering about one thing! The bootloader is locked, so that means it was never-ever changed since the phone was manufactured, correct? So no effect of writing different SBFs on the bootloader, correct? (minding the Efuse and CG numbers)
if so, than can I conclude only by that information (and that I cannot connect the phone to the computer anymore with bootloader) that there must be hardware/physical damage? I've just completely eliminated the software factor out of the equation. haven't I?
Did I miss anything? let me know.
P/S, I'm going to stick with this phone as it is. I can work around never having usb data connection.
Cheers
Can you try installing Linux and see if the you can mount /system or even /sdcard on Linux from bootmenu? Bootmenu mount only works in Linux. I've tried it in Ubuntu 10.10
Its worth a try, if Linux doesn't see it then it must be a hardware issue and would need a Motherboard replacement.
Use ubuntu live disk to make things easy and not mess your Windoze
Sent from my MB526 using xda premium
You're right, sbf flashing cannot break usb functionality. I'm not very well versed in mobile hardware but I think the port can be replaced, though I don't know how. It may be possible that a local mobile store could fix it.
Trying Linux is a good idea, though it may not work out from the looks of it(the phone)
Sent from my MB526 using xda premium
If anyone is reading this, I had some bad batteries and a usb port that is having physical problems. I'm flashing it with contact cleaner spray every now and again and it helps. I can get a usb connection to the computer and charge it with a bit of luck and while I keep it stationary.
Ok so long story short, i have a nexus 7 2012 which a rooted and installed cyanogen mod.
I was using it as a car install and works perfect, i'm using an otg cable to mount usb sticks, triggering soft shutdown and powering the nexus etc. So usb seems to be working fine.
Basically i removed the tablet it to modify the bootloader to turn on automatically with ac power applied, if the battery runs out i have to manually power on with button, but now i'm running into a problem.
Ever since taking the tablet out and trying to connect over usb, none of my computers detect the tablet.
I've tried different operating systems, drivers, cables etc etc.
Also changed from mtp to ptp in storage and also turned on usb debugging mode. If i connect an otg cable the nexus see's the otg and i can mount usb's etc.
So i thought i might try recover the nexus back to factory, maybe there was an issue with the rom corrupted etc, I've downloaded the original 4.2.2 firmware which is currently installed.
Booted into recovery and tried re-installing the 4.2.2 zip, it keeps aborting. A guy in work tried to use sideloader and connect via adb. no luck.
I'm not very familiar with the android platform so i've no other ideas what to do and other idea's how to recover now.
The guy i work with mentioned using a usb jig, would that be the way to go or can anyone else suggest some else that might help.
Thanks
Before you updated when was the last time you connected your N7 to your computer?
When you connect your N7 to your computer does it act like it is charging? Have you tried more than one computer? I had a similar problem with mine last year & sent it in 3 times. Asus replaced both the USB port board & the main board on different occassions. I suspect your mainboard might be faulty.
Does adb see the device
jadesse said:
Before you updated when was the last time you connected your N7 to your computer?
When you connect your N7 to your computer does it act like it is charging? Have you tried more than one computer? I had a similar problem with mine last year & sent it in 3 times. Asus replaced both the USB port board & the main board on different occassions. I suspect your mainboard might be faulty.
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I last connected the nexus to the laptop a few monts back to load some music onto it, didn't have a problem. It's only been connected to a computer maybe 3 times. once to root/rom it then another few times to load music etc.
I can't see why the usb board maybe faulty as i can read data from a usb key when the otg cable is connected.
It's a strange one. You could be right, i might try pick up a broken nexus and swap some parts. Usb board etc.
crusrod said:
Does adb see the device
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Yes adb is shown in device manager, but it's not recognizing the nexus, comes up with an error 10 , cannot start. etc etc
foster182 said:
Yes adb is shown in device manager, but it's not recognizing the nexus, comes up with an error 10 , cannot start. etc etc
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I am having this same problem on my (unrooted) HTC One after attempting to "convert" it from an AT&T to a Google Play Edition device with the procedure described here.
As part of the procedure, I attempted to flash the stock Google Play Edition ROM using fastboot commands, but I got an error message. The instructions say to just try the flash again, but the phone no longer connects properly via USB (error 10) while in bootloader mode. While in bootloader mode, the phone indicates there is some sort of problem (a line showing the OS version is highlighted in red), and attempting to enter recovery mode does nothing but display a phone with a big red X in it. The phone seems to operate fine and responds to ADB commands when the phone is fully booted, albeit with the old OS (not Google Play Edition) still in place.
Any Android device could theoretically get in this state. We're sort of "paralyzed", because everything we want to do to regain control of the bootloader and fix the situation seems to require issuing fastboot commands from a computer connected to the phone while it's in bootloader mode. Yet entering recovery mode or getting a computer to connect to it via USB no longer seems possible.
I wonder if there's another way to issue fastboot commands without relying on the USB connection to a computer?