So my 4 year old nephew was playing with my 2012 Nexus 7 and now it's stuck in a bootloop and I can't get into anything but bootloader. Every option takes me right back to the google startup logo of the merging color dots. It was rooted but I was using stock kit kat at the time.
I've done my reading on how to fix a bootloop, lots of tutorials with the same info: use wug fresh tool kit to restore to factory. However, all of these instruct turning on USB Debugging on the Nexus. How do you do that when you are stuck in bootloop with only access to bootloader and the Android System Recovery screen????? I have to totally be missing something here are these guys aren't thinking through the problem. I'm smart enough to know I could be the problem, but I don't think so?
So, can someone tell me how I can get my Nexus 7 back to stock, considering that I am only able to get into bootloader? Also I have a mac, so any mac compatible solutions would be awesome, but I can get my hands on a PC if necessary.
I have unlock/rooted/rom'd before, so I'm not a complete idiot on this subject. Yet, obviously far from an expert. I know I have to use fastboot but will it work if I can't get into my nexus to turn on usb debugging?
Some details:
1. Only Bootloader is accessible through the Power/Vol UP/Vol Down combo (see pic)
2. From the Bootloader, Start/Power Off/Restart Bootloader all take you to the bootloop of the merging dots.
3. Recovery Mode takes you to the "No Command" screen (see pic)
4. From the No Command Screen, a quick button combo of Power/Vol UP/Vol Down takes you to the Android System Recovery screen (see pic)
5. I have tried the wipe data/factory reset option to no affect, still get bootloop.
Thank you for any help you can provide!
The USB debugging toggle is only to use adb with a booted ROM. Your ROM isn't booting. Fastboot and adb side load will work in boot loader and recovery, respectively. As for Mac commands, not my wheelhouse.
sent by mirrorflash Morse code
If you want wug's toolkit, boot your tablet into bootloader, and check the option for "Soft Bricked/Boot Loop" on the toolkit. Then do the flash stock and unroot.
Related
I rooted my N10 using CF-Auto-Root without unlocking the bootloade (on purpose). The N10 has been working fine and I loaded 10G of personal files. Then I sideloaded an old version of the LBE privacy guard. It installed, but then when I returned to the homescreen I got bootlooped.
I turn it off and back on, and I got the dreadful android-with-red-triangle saying "no command".
I could get into the recovery mod using power+volume up/down. "Restart bootloader" got me back to the recovery manual; "recovery mode" or "start" got back to the red triangle. I was able to turn it off. The battery is at 80%.
Is there a way I can wipe my N10 and do a factory reset? I did not unlock my bootloader; is that why I can flash a factory image?
Since I can't boot up the N10, at this point I probably can't use adb to remove the bad apk?
I'd prefer not to unlock the device, in case I need to RMA back... And I'd rather not return it at all, since I just uploaded lots of personal info...
Your help is **most** appreciated.
I think that if you press power, volume up and volume down at the red triangle screen it will get you to the stock recovery. You should read the stickies in the two development sections lots of people needing to do factory resets after unlocking.
Sent from my Nexus 10 using xda app-developers app
Sounds like you are getting into fastboot mode fine, so worse comes to worse, you can unlock it, flash a factory image and re-lock it ..
Of course doing that you are going to loose all your data ..
Check out the tut's for flashing factory from fastboot, or you could use mskip's toolkit ..
A co-worker bought a N7 for his 10yr old. Around the same time Android 4.3 was being pushed to devices, this particular tablet stopped working. The child won't explain what happened, but I think he possibly did something to it while 4.3 was installing. I dunno.
I have the tablet in my possession, it's stuck on the X screen. If I power button/volume down I can get into the recovery screen, but when I select recovery, I get the Android on his back with "No Command" written under it, and it hangs there. In my computers device manager, the tablet is listed as MTP USB device with an exclamation point.
Since I cant boot into the device and turn on debugging, I'm not sure what to do. Can anyone offer me any advice? it would sure make this kid happy to get his tablet back, it was his birthday present
Try flashing a custom tech recovery like TWRP to the device via fastboot. Then use adb to push a custom or stock ROM to the device and flash from recovery.
Or you can flash a factory image from the boot loader via fast boot.
Just follow this guide if you are unsure http://forum.xda-developers.com/showthread.php?t=1907796
Sent from my Nexus 7 using Tapatalk HD
My nexus 7 2012 has been giving me issues for the past two weeks, freezing/rebooting/turning off during sleep. I've done a factory reset before with no problems, but today during the factory reset it was giving me errors, failed to erase, cannot read e:/, things like that, then it froze up completely.
Now I can get into bootloader mode, but Recovery adb mode does nothing, like there is no recovery data on the tablet. Using the wugfresh nexus 7 toolkit I've been trying to do the Force flash stock option because my debug mode was never enabled when the device was on. Only problem is nothing happens. When I try unlocking the tablet it just freezes up causing me to have to hold the power button down for a minute. Flashing the stock fails as well, in the dos dialogue that comes up everything it does fails because it's not unlocked. When the tablet tries to load up I'm stuck with the google logo and the bootloader Start menu on top of the screen.
Any suggestions?
Did you tried it with fastboot or only with toolkit?
Not sure what you mean. On the tablet itself I can really only do three things now...Turn it on, which only goes to the Goolge logo screen, which has the menu on top (start bootloader/recovery/turn off). If I hit Recovery I get an error that says Failed to Boot. I can go onto the bootloader page, which I did to use the toolkit. Only problem is the toolkit wasn't able to do anything. Everything I tried failed, including the force flash option.
Which desktop OS are you using? Do you have the Android SDK installed?
try the universal adb drivers : http://download.clockworkmod.com/test/UniversalAdbDriverSetup.msi
Adb should work now :good:
Hello all,
Any help with this would be seriously appreciated. I rooted my Nexus 10 a while back, maybe two years ago. I'm not very proficient with this stuff. Anyhow I decided to do the OTA upgrade to 5.0...I was concerned something would go wrong unless I went to stock first, but I read that the only thing that would happen is root would be removed.
Anyhow, the tablet appears stuck while booting. I see the Google screen first with the unlocked indicator on the bottom. A few seconds later is the Android logo on its back, a red triangle over it with an exclamation point and "no command" written below". It stays that way for a minute or so, tries to reboot and goes back to the no command screen. I can't even power off, when I try to do so it just powers back on by itself and ends up at the no command screen again.
I tried booting into recovery (power, volume up, volume down). My options from here are either Start, Restart Bootloader, Recovery Mode or Power Off. Every option I choose leads to the No Command Screen (except power off, which powers off). No idea what to do from here.
Any help at all would be appreciated. As you can probably tell I don't have much experience with this and just wanted to go back to unrooted stock. If you have advice, please be clear. I can follow directions well enough, just don't have much experience here. Thanks in advance.
Same here, bootloop.
Same thing here. A seemingly short download of Lollipop (even though I have 50Mbs internet). Installation, reboot, and now it loops endlessly. I can get to the bootloader or into Download mode, but that's all. Recovery mode just reboots. I was rooted and had TWRP installed. Other than that, I was running stock 4.4.4.
I've rooted all my devices, and installed various ROM's on several devices. I have the full ADB installation. I have the Nexus Root Toolkit installed. The problem is, the device will not show up under "Devices" on the computer itself. I've installed every USB driver there is (and uninstalled each one after it does not work, so no I do not have several USB drivers installed). Of course nothing shows up using "adb devices" either. Nexus Root Toolkit also cannot find any devices. I've read everything on this subject I can find, and there are no answers out there. Anyone have ANY ideas??
Thanks
Guys, if your device is connected in fastboot (try "fastboot devices") then you can flash roms or recovery (and then flash rom) from there. There are multiple threads with the same problems out there which were fixed. E.g: http://forum.xda-developers.com/nexus-10/help/bricked-t2948546
In my example, I flashed TWRP recovery from fastboot, then installed custom ROM from recovery (official ROM failed to install for some reason). Try this, it might help.
danweis said:
Same thing here. A seemingly short download of Lollipop (even though I have 50Mbs internet). Installation, reboot, and now it loops endlessly. I can get to the bootloader or into Download mode, but that's all. Recovery mode just reboots. I was rooted and had TWRP installed. Other than that, I was running stock 4.4.4.
I've rooted all my devices, and installed various ROM's on several devices. I have the full ADB installation. I have the Nexus Root Toolkit installed. The problem is, the device will not show up under "Devices" on the computer itself. I've installed every USB driver there is (and uninstalled each one after it does not work, so no I do not have several USB drivers installed). Of course nothing shows up using "adb devices" either. Nexus Root Toolkit also cannot find any devices. I've read everything on this subject I can find, and there are no answers out there. Anyone have ANY ideas??
Thanks
Click to expand...
Click to collapse
Go to Fastboot mode (pwr+both volumes), Than select recovery after a while an android with Exclamation mark appears which is a stock recovery screen. To access the stock recovery menu press and hold power than press one of the volume keys so the menu will appear. Than do a factory reset and clear caches. You can than reboot and wait for boot animation to finish (it wont take long this time) and you will boot.
If this doesnt work you can flash a stock factory image easily from fastboot again.
Aresmar said:
Go to Fastboot mode (pwr+both volumes), Than select recovery after a while an android with Exclamation mark appears which is a stock recovery screen. To access the stock recovery menu press and hold power than press one of the volume keys so the menu will appear. Than do a factory reset and clear caches. You can than reboot and wait for boot animation to finish (it wont take long this time) and you will boot.
If this doesnt work you can flash a stock factory image easily from fastboot again.
Click to expand...
Click to collapse
I also had the same problem... I followed these instructions and now my Nexus 10 can boot normally (it took a long time to boot).
Only problem is all my data was deleted.... stup*d f*cking sh*t!!!!!!!
Hi
I know this is an old device but I got it for free and feel it's a good device to experiment on. Looked thru all the posts I could pertaining to this but am not clear what to try next and wish to avoid bricking.
I have tried to flash various versions of TWRP and none will boot. Can still get into fastboot, device is recognized by adb. Says it is loading, but when I try to get to TWRP recovery I only get the exclamation point. I can get to the stock bootloader (is that right?) with Power+Volume up.
On power up it goes thru the Android startup but then I am presented with a screen asking for location, goes to WiFi step and hangs. No problem powering down and getting to fastboot.
What should I do next? My thought is to try and re-install factory image (have it) via directions here - https://forum.xda-developers.com/showthread.php?t=1781250
Any other suggestions?
This is great - I can answer my own post!
Digging around I read post for a Samsung Device having same problem. Solution was that the device would re-write the bootloader on reboot (the solution there was an option to not overwrite bootloader in Odin).
So instead of running 'fastboot reboot' I ran 'flashboot reboot-bootloader' and there was TWRP.