[q] nexus 7 not booting - Nexus 7 Q&A, Help & Troubleshooting

Hi All
I've been trying to update to JB 4.2, I used the auto update feature in the nexus but it kept failing to install! I then resorted to using ADB/SDK (only started using it yesterday so an extreme novice) to try and flash to JB 4.2, still it did not work.
Something went wrong when trying to flash as my nexus gets stuck on GOOGLE writing when booting up!! I'm using adb sideload with a factory image.tgz but it loads sideload to 100% in the command window (my nexus is in adb mode at this point) my nexus receives the files then says it's verifying update package, then says installation aborted!!!
Not sure what to do, really stuck, any help appreciated...:crying:

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[Q] Nexus 7 [2012] Freezes on Initial Setup - Select WiFi

Hello Everyone,
Need a big help.
I Have a Nexus 7 Wifi+Mobile
Had a stock installed version 4.2.2 JDQ39 - bootloader unlocked and rooted. [using the Nexus root toolkit]
Wanted to update it .... so whenever the OTA update gets downloaded I used to try to update it but it would always fail [ on 50% update error occurs with android laid back with red triangle ! ]
So this time tried by using the Nexus Root Toolkit. downloaded the 4.3 Stock rom from google
Using the 'Flash Stock + Unlock' but it didn't went well and when it got rebooted showed the screen 'no OS Installed'
I tried everything on the bootloader screen to restore the android file [that i backed up at the start ]
Then I downloaded the original 4.2.2 JDQ39
Installed it using the 'Flash Stock + Unlock' with 'Soft Brick/Bootloop', that also didn't work as it fired some missing CDOP or something.
Then tried doing the same by enabling the option of 'Force Flash' yes it installed well and booted too till the start screen.
Now the real bewildering behavior .....
1. Select Language - Selected English (united Kingdom)
2. Select Wi-Fi - Frozen saying 'Turning on Wi-Fi' [I have a good wifi connection and using that on my SGS2]
I waited for about 2 hours and on still the same screen. [find te frozen screen in the attachment]
Please help ........
Same here,
I only have installed twrp and this 4.2.2 rooted
i can't pass wifi activation and turn on debugging.
What do you think about copying 4.4 stock rom from pendrive to nexus using USB-OTG in twrp recovery?
Thx
I'm having this same exact issue on GNex Toro. It all started after I replaced the USB port. I replaced it just fine. Nothing broke, tore etc. By the grace of God I was able to restore a PA 3.99 backup and keep my phone active while using the Nexus toolkit to return to stock and unroot. But still encountering this same issue now - can't pass the select WiFi screen.

[Q] - Error when updating to 4.4 - Official

To my delight, I got the OTA update or whatever it is, the official thingie to update to 4.4, icon and all.
I start it up, it goes through the motions, then it gives me a nondescript error (( The little Android looked like how it did when it's awaiting a bootloader instruction. ))
Does this mean my Android stock is borked? Do I need to factory wipe? I am confused. I did, however, download the Google-based Nexus 2012 KitKat build and I attempted to ADB it, and it gave me yet another error, with this - E:Error in /tmp/update.zip.
Any help that can be given would be wonderful.
I have the same issue. I wiped the cache and done a factory reset but it didn't fix the issue. I downloaded Nexus root toolkit as it has a unbrick feature and ran that but it seems to have made it worse, I can no longer get into recovery.

Trying To Recovery N10 (old version).

Hi guys,
I have searched around the forums and still unsure, weary of what to do. I got my nexus when they first came out. I used it for a while and eventually unlocked it so that i could get certain apps that needed root access. I dont think i flashed a custom rom on it though. I havnt updated android to 4.4 yet. Its been a long time since i updated anything. Hence the start of my dilemma. I went to backup my tablet. It told me SuperUser or the bootloader needed to be updated. So im like oh fine update. Tablet then restarts brings me to my boot screen and says downloading target do not turn off. Its been stuck like this and nothing happens. I held down the power and rocker buttons and got back to boot option screen. Here's where im lost and dont remember what to do. I have tried start, recovermode, restartbootloader, and nothing seems to work. They all bring me back to the dead little android guy ​
Here's the device info.
product name: manta
variant: wifi
h/w version 8
bootloader version: mantam03
carrier info: none
serial: ****
lock state: unlocked
reboot mode flag: recovery
I slightly recall when i first unlocked it using twrp or clockworkmod? I could be wrong. Either way i no longer have the rootkit nor the computer i originally used to unlock it. What software do i need to install to get me back up and running. I was worried i may brick it if i installed the wrong version kit. That maybe newer version wouldn't work with my n10 because it was running an old version. Any advice would be much appreciated.
Jshannon22 said:
... I was worried i may brick it if i installed the wrong version kit. That maybe newer version wouldn't work with my n10 because it was running an old version. Any advice would be much appreciated.
Click to expand...
Click to collapse
Considering that you have not used the N10 in a very long time your user data may not be all that important so here are some options.
1) You could flash the factory image for Android 5 which will wipe out your user data but give you a clean system including stock recovery.
2) You could flash the factory image for Android 5 but first you need to change the "flash-all".(bat,sh) script by removing the "-w" option which will prevent your userdata from being wiped. That takes some knowledge to edit the script but all you need is a simple text editor.
After either of those options you can root and replace your recovery. Root before you change your recovery or you will run into an issue due to specific changes in Android 5.
Instructions for installing a factory image.
Nexus 10 lollipop factory image.
How to install Android Lollipop factory image on Nexus 5, 7 and 10 (and keep your data)
Good Luck
I'm having similar issues! When trying to install lollipop over sideload it always errors and states not enough space.
I've formated all the data so I'm at a loss.
Any ideas to install lollipop?
Sent from my Galaxy Nexus using XDA Free mobile app
I'm concerned I've bricked the device. To be honest I'd be happy just to get kitkat back!
When the device powers up it automatically goes into a "no command" bootloop. With the android on its side with an exclamation point sign coming out.
Holding power and the volume it then goes to the android recovery where I have four options: reboot, apply update from adb, factory reset, wipe cache.
When in command, typing adb devices shows my device.
Using adb sideload I've tried to update, but I always get the error "creating parent of system/app/KoreanIME/KoreanIME.apk failed. error no space left on device
E:Error in /tmp/update.zip
status 7 installation aborted"
So I downloaded the kitkat image and tried to run the script "flash all". But then the command screen just says "waiting for device"
After all that failed, I tried to hold power and the volume button when it restarts. That takes me to the odin screen, where it just states "downloading, do not remove target" The volume buttons do nothing. pressing the power button just reboots.
Any help would be much appreciated!
I have the same issue. There does not seem to be a way to install any (old) version of android. All I get is the same error message "creating parent of system/app/KoreanIME/KoreanIME.apk failed. error no space left on device
E:Error in /tmp/update.zip status 7 installation aborted"
I did not root my device nor did I install a custom rom. I just started installing the OTA update and that's when the tablet got stuck in the boot loop thingy.
I also searched the internet and all I found were similar instructions on how to install factory images etc. using adb sideload.... as I mentioned, following those instructions lead to the error message.
I can' believe this.
Thanks for your help
I also have similar issue. I had non rooted Kitkat 4.4.4 installed on N10. I received update intimation to Lollipop hence downloaded the update. While installing, message regarding error came followed with message "No command" . Now nothing is done further. Even tablet is not getting power off. Periodically screen displaying Google is coming followed with message "No command" I just checked. I can enter in to download and recovery. I now downloaded also Lollipop update for manual updating.
While connecting to PC, it starts searching for driver and after sometime message flashed "Driver not installed successfully" might be due to non detection of MTP. In such case if I try to maually install then ADB also is not recognising the connected device. As novice even I do not know to install ADB sideloaded.
Can you suggest how best I can revive N10?
Regards,
Guys,
I also had the exact problem. What finally worked for is to flash custom recovery (TWRP latest version) with "fastboot flash recovery <recovery.img>" command.
Then from the recovery I installed custom ROM (http://forum.xda-developers.com/showthread.php?t=1998585), as the official ROM also failed.
Hope it will help someone.
Shleim, this seems to just have worked out fine. Many thanks for your help!
I'm still kinda wondering why it wouldn't work with the official ROM. In any case, this is by far better than having a bricked tablet and at least now I know it still works.
Awesome, thanks for this tip!!!
fliuwoek said:
Shleim, this seems to just have worked out fine. Many thanks for your help!
I'm still kinda wondering why it wouldn't work with the official ROM. In any case, this is by far better than having a bricked tablet and at least now I know it still works.
Awesome, thanks for this tip!!!
Click to expand...
Click to collapse
No worries, glad it helped you.

Nexus 4 lollipop OTA fail [Solved]

Hi,
I recently tried to update my stock encyrpted Nexus 4 using the OTA Lollipop update. Now when I try to start the phone I can get past the decryption unlock screen as usual, but after that it gets perpetually stuck in the spinning circles sequence. Unfortunately, I have not backed up my data and would like to retrieve it if possible (I thought the backup to cloud feature was enabled, but I guess it wasn't...). I've tried pushing the official Lollipop update using adb sideload; everything seems to work fine (it unpacks and installs without any errors), but when I reboot the phone I still have the exact same problem as before.
Can anyone think of anything that I can do to recover my files? I'm holding out hope that my photos are still on the phone and can be recovered somehow.
Thanks!

Nexus 2012 grouper recovery mode fails can I reflash via Mac?

Hello,
Apologies if this has been answered elsewhere - I've searched extensively and can't find the answer.
My 2012 Nexus 7 wifi has been rooted and unlocked and I have played about with various OS's such as CyanoGenMod to try to get it to run smoothly without lag. The last one I tried was a fairly standard build of 7 (I Think), but after 18 months or so it slowed enough that I decided to take the nuclear option of reverting back to 4.4.4.
I downloaded a build of 4.4.4 called omni on my mac, transferred it to the Nexus 7 via USB and also included a package of Gapps.
When I'd flashed from clockworkmod the system kept rebooting, wouldn't let me turn on wifi and wouldn't show up when connected to the mac. I downloaded a factory 4.4.4. image but couldn't transfer this to the Nexus, so had to install and use ADB. I installed ADB via homebrew, which works, but I can't find the installation folder by browsing to it.
I got the Nexus 7 to reboot, but couldn't transfer the new stock image (nikasi) across. Now the Nexus 7 won't boot into recovery mode - I get a message saying that the boot failed.
All the guides I've read have advised me to reinstall the rootkit using a software package for windows (which I don't have) or to enable USB debugging on the device, which I can't access.
Any ideas? There's nothing urgent about this - I don't need the Nexus 7 for work or anything, but I would like it to work. It was great when I first got it, but lollipop ruined it and it's never been satisfactory since
Thanks

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