so i have a nexus 7 stuck in a bootloop, i never enabled usb debugging, and cant get my pc to recognize the device even when it says it's in fastboot mode. bootloader is still locked and recovery mode freezes at google screen on the rare occasions when i can even select that option. tbh i think there's something wrong with my adb setup, but i followed the instructions on the android sdk site... kinda lost here sorry if this question is unclear. i also tried using the unlock option on wugfresh's nexus root toolkit but it keeps saying there is no fastboot device attached. any help would be much appreciated.
never mind, I'm just going to install a fresh motherboard.
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Ok so i tried to root my N7 and im pretty sure i screwed up because now when i enter the boot loader with the usb connected, it crashes. On my computer it says the device is not running, i can get bootloader working if its not plugged into my computer.Help plz!
Does your computer recognize the fact that it's plugged in? And if so - do you have Android Debugging installed?
If you have both of these things working you can flash the stock image and basically start over. You can either go install the Nexus toolkit or do it manually through ADB - both of those are found over in the Development section and are pretty straight forward.
Try rooting/installing CWM through the Nexus Toolkit, it's essentially foolproof save unplugging your device.
brianjr1 said:
Does your computer recognize the fact that it's plugged in? And if so - do you have Android Debugging installed?
If you have both of these things working you can flash the stock image and basically start over. You can either go install the Nexus toolkit or do it manually through ADB - both of those are found over in the Development section and are pretty straight forward.
Try rooting/installing CWM through the Nexus Toolkit, it's essentially foolproof save unplugging your device.
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Click to collapse
Thanks for replying so quickly. I can boot up into jelly bean, but i can't boot into boot loader.
In both the bootloader and the actual rom my computer can detect it with ADB installed; however heres the problem, when in the bootloader it gets stuck, i can't use the volume buttons i can't click anything and on my computer (inside device manager) it tells me:
This device cannot start. (Code 10)
If i don't plug in the USB i can use the boot loader, and because I can't leave the usb in while in bootloader, i can't flash anything.
*edit also i can't go into recovery mode, it just gets stuck at the google logo
bump
Have you tried to boot into the boot loader through adb?
Also, I'm pretty sure its a known issue that you can't boot into recovery from the boot loader menu. I'd suggest flashing the stock nakasi file through adb and see if that fixes it for you.
Sent from my Nexus 7 using xda app-developers app
I also had trouble getting the bootloader to operate correctly with the USB connected.
Disconnect USB
Hold down vol+, vol- and pwr to get into the bootloader
Reconnect USB once you are in the bootloader
I made the dumb mistake today of flashing my Nexus 7 with the wrong gapps and as a result setup would continuously crash.
I first tried to reboot into recovery by entering fastboot mode (power + volume buttons) but all i got was the google logo for all eternity
next I tried reverting to stock with the nexus 7 rootkit but it always failed on the fastboot check saying my device could not be detected.
Assuming my drivers were not working correctly I manually installed the google usb drivers and at this point if I look in the device manager I see Android device > Android Bootloader Interface but if I run the adb devices command I get nothing.
I feel like I'm at the end of my rope here so I could use any suggestions.
p.s. usb debugging is not enabled because I had just done a factory reset and I can't enable it because I can't really access anthing after booting up.
solved
Ok so after installing the google driver I decided to give the root tool and leaving my nexus 7 plugged in for a while I noticed that the fastboot screen was no longer frozen and decided to try the rootkit again and this time it worked like a charm so problem solved!!!
I guess I couldn't detect it with adb because usb debugging wasn't enabled but the rootkit was still able to restore it using the fastboot method.
Hello guys. im a new owner of a n4. its really nice and fells a lot better than my old sgs 2 First what ive done was updating it to android 4.3.
then i wanted to install drivers, unlock bootloader and root him. the problem is with those stupid drivers :/ when i put my n4 to the pc i have only in my device manager Google Nexus ADB interface without the yellow triangle. i have the debug mode on. im using the Nexus root toolkit from Wugs and after checking the drivers, it always fails with an error like check the debug mode, check if the device is connected etc....
What im doing wrong ?
roberto18 said:
Hello guys. im a new owner of a n4. its really nice and fells a lot better than my old sgs 2 First what ive done was updating it to android 4.3.
then i wanted to install drivers, unlock bootloader and root him. the problem is with those stupid drivers :/ when i put my n4 to the pc i have only in my device manager Google Nexus ADB interface without the yellow triangle. i have the debug mode on. im using the Nexus root toolkit from Wugs and after checking the drivers, it always fails with an error like check the debug mode, check if the device is connected etc....
What im doing wrong ?
Click to expand...
Click to collapse
When you're plugged into ADB, from your fastboot/adb folder:
ADB reboot-bootloader
Fastboot oem unlock ( select yes using power up/down - power to confirm )
It will wipe your data, but from here your bootloader will be unlocked, afterwards, you can download a customer recovery, put yourself back into fastboot, and type
Fastboot flash recovery NameOfRecoveryImage
I've always used the ADB/Fastboot as opposed to the one button click tools. After owning multiple other phones, this tends to be the easiest and most flexible way.
I think you didnt understood me ive asked what im doing wrong, that my pc cant swe my device. I CANT install drivers, and root my phone
The nexus root toolkit has detailed instructions and multiple ways to get drivers working. Which did you try? Where did each method fail?
Sent from my Nexus 4 using Tapatalk 4
I recently bought a refurbished 2012 Nexus 7 on 4.2. The only things that I have done on the phone are entering my Google account details and downloading a single app (papyrus). I then clicked to install the automatically downloaded software update (it downloaded 4.3), and after restarting the tablet was stuck on the Nexus X boot animation forever. Factory reset/cache wipes do not help.
I found drivers for the phone to be recognized while showing the X, and I found drivers for the phone to be recognized after selecting the a "apply update from ADB" option from stock recovery. However Windows does not recognize the phone at all in recovery mode before selecting that option. Nothing changes in the device manager when plugged/unplugged. Windows doesn't attempt to install anything. It's as if I unplugged the cord once it enters recovery from the bootloader. I assume USB debugging is off, because it would be at the default setting. I tried using the Flash Stock + Unroot option in the Nexus Root Toolkit with the Soft-Bricked/Bootloop setting in, but that fails in both normal recovery (with the device unnoticed) and sideload mode. I'm guessing that debugging needs to be on for this?
Does anyone have any suggestions for other things to try? I have no way of knowing what the original owner may or may not have done, and this was the first time that I restarted the device, so I have no way to know if the problem was caused by the OTA or not.
EDIT: It looks like I made the situation worse. I attempted running the Flash Stock + Unroot option from the bootloader. I am not sure what happened, but now the device starts at the Google page with green start in an arrow. I have the bootloader options, and start and recovery options give me a "booting failed" message in the top left and just stay on the google page. Restarting the bootloader gives me the normal bootloader android image and the options have the same effects.
For anyone who runs into this problem, I seem to have at least temporarily solved it.
I followed the advice here to manually flash the factory image. I am now back to where I was when I bought the phone, and I will immediately enable debugging and test it's ability to restart, connect in recovery mode, etc now.
EDIT: It can restart normally (with the unlocked logo), but it is still completely unrecognized in recovery unless I choose the sideload option like before. Should I return the tablet?
wioneo said:
For anyone who runs into this problem, I seem to have at least temporarily solved it.
I followed the advice here to manually flash the factory image. I am now back to where I was when I bought the phone, and I will immediately enable debugging and test it's ability to restart, connect in recovery mode, etc now.
EDIT: It can restart normally (with the unlocked logo), but it is still completely unrecognized in recovery unless I choose the sideload option like before. Should I return the tablet?
Click to expand...
Click to collapse
still have a problem?
Wrong drivers, try other USB ports. Had that happen with another tablet. Only recognized in adb side load with galaxy nexus driver loading, possibly from universal adb drivers... Switched to a port on the other side and correct drivers finally worked.
Sent from my Le Pan TC1020 using Tapatalk
norwoodesteel said:
still have a problem?
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Click to collapse
As far as I know, no. I was never able to get the device is to be detected by my computer while in stock recovery mode, however it was detected after I flashed ClockworkMod Recovery. So I still have no idea what was causing that problem, but it is no longer relevant.
I have been searching for hours/days, can not find a solution. I recently unrooted my Nexus 7, 2012 WIFI to download and try the new stock Lollipop 5.0 . I found out the the 5.0 was too buggy and kept freezing up my Nexus. I decided to revert back to 4.4 using the nexus toolkit (as I have many times in the past) and in the process lost my recovery option while in bootloader mode (was on a friends pc and had loose USB cable). Because I can not access the system to enable USB debugging. I am now on my own PC using a good USB cable I cant get ADB to recognize the Nexus. I have tried many drivers. I am thinking this is considered a hard brick scenario. When I do a reboot in bootloader mode, I get gray screen. When I try using recovery, I get dead droid with upside down triangle. Any help would be appreciated. I am not a rookie at this but also not a pro so I need help.
Remember, I do not have USB debugging enabled, nor can I boot up to access dev options. I can go into bootloader and adb modes but can not get adb or nexus toolkit to recognize. Thanks
Anyone?