[Q] Nexus 7 was working, now stuck in bootloop - Nexus 7 General

I had rooted my Nexus 7 a few weeks ago. It was working great. This morning I was using it, the screen locked, when it came back I had no home, back or switch app buttons on the bottom. I thought that was odd, so I restarted. Now I can't get past the X screen. I've let it run for over 30 minutes and it still won't boot. I went into recovery and wiped cache and dalvik cache. I'd like to try to attach it so I can pull data off my sd card, but I can't get the pc to recognize it as a hard drive. Any suggestions? I'd like to back up what I have on the data portion of the drive just in case it wipes when I flash a new rom to it... other problem is that if I can't get it to be recognized as a device, I won't be able to put the new rom onto the device. Should I just factory reset?
Thanks for your help!

I was able to get adb pull to work and I'm currently backing up my data from there. I hope a factory reset/flash a new rom will fix it. I'll post what I find out. I really wonder what caused the bootloop.

uofirob said:
I was able to get adb pull to work and I'm currently backing up my data from there. I hope a factory reset/flash a new rom will fix it. I'll post what I find out. I really wonder what caused the bootloop.
Click to expand...
Click to collapse
A factory reset alone should fix it.
Sent from my Nexus 7 using Tapatalk HD

Unfortunately, the factory reset didn't help. I ended up using adb pull to copy my data to my computer and then I had to flash a rom over it. I even had to sideload the rom as I couldn't find the zip on the "sdcard" area. It was pretty well borked.
On a plus side, I'm running CM now!

Related

Stuck on Boot Screen

Hi guys. Yesterday night I was installing a few new apps but the seemed to be stuck installing forever. So I decided to reboot. However, after the reboot, it never goes past the second boot screen.
I know I can just flash to another rom but is there a way to save my data in the instance? I can still get into recovery mode if that helps. Thanks
I've read you can hook up to your pc and mount your sdcard from cwm. Never tried it but if it works you can save your data that way then maybe a master clear/cache or dalvik wipe will help.
Sent from my SAMSUNG-SGH-I897 using XDA App
BumRush said:
Hi guys. Yesterday night I was installing a few new apps but the seemed to be stuck installing forever. So I decided to reboot. However, after the reboot, it never goes past the second boot screen.
I know I can just flash to another rom but is there a way to save my data in the instance? I can still get into recovery mode if that helps. Thanks
Click to expand...
Click to collapse
You can mount USB in recovery and get all your stuff off of your SD that way. You can also nandroid your current ROM in CWM and re-flash it, then restore from backup. As far as saving texts and all that, Idk if you can, but I'm sure someone else does.
Also, you could try clearing dalvik, cache, and then running the kernel cleaning script. It's gotten me out of a few binds before. It might help you to where you wouldn't have to flash again.

In need of some help.

Ok so I have an Atrix HD that I rooted then went to install paranoid android on here. I made the mistake to try and install using Factory Recovery. So it threw an error in Fastboot. I used Myth Tools to get it back to stock. Then used Myth to install CWM Root it and unlock bootloader. Then went to install paranoid android again... Everything seemed to be going well but it just stayed on the Glowing X for 10-15 minutes. Knew something was up with it not loading into OS by then. So I tried to reinstall it again. No luck. Tried to use Myth Tools to go back to factory. Would just stay at Dual Core logo and do nothing. I went back in and installed CWM and tried to install Pacman Rom and it just stays at Pac is loading.
Fastboot still shows Bootloader as unlocked as it should, but is this the reason why Myth could not get me back to factory? I just want to get it back to factory at this point and worry about Rooting and installing Rom later. I have been searching and trying anything I can find on here, and droid razr forum. As well as various other sites and artices i find from google. I am at a lose. Have I bricked it enough to not come back from this or am I just missing something simple? I am looking for insight or help to get me in the right direction. I am on day 3 now off trying to get it running again.
I have tried in CWM formating Cache and re mounting it in Advance, Also have tried formating system, cache, davik cache... I did receive the can not mount errors but having formatting cache and remounting i did not get the error again.
Just take it a step at a time. Get it booted into stock first.
Sent from my MB886 using xda premium
darknessrise1234 said:
Just take it a step at a time. Get it booted into stock first.
Sent from my MB886 using xda premium
Click to expand...
Click to collapse
but where to begin? Trying to get it back to stock is not working even though Myth Tools. It states it finished I do not get any errors through Fastboot yet it stays on Dual Core never moves as if it is bricked.
DeVoe41 said:
but where to begin? Trying to get it back to stock is not working even though Myth Tools. It states it finished I do not get any errors through Fastboot yet it stays on Dual Core never moves as if it is bricked.
Click to expand...
Click to collapse
read this
http://forum.xda-developers.com/showthread.php?t=2226527
Make sure you have the adb drivers installed on your computer and I've noticed this phone is weird about chargers find one that works for data too. U will know cause if you have adb installed through myth tools and you reboot into fastboot mode then your computer will recognize it. Make sure the only thing in the firmware folder in myth tools is your .zip whatever stock att firmware you want. Then in myth tools install stock and make sure you type in the response 2 when it asks if you are in fastboot mode or normal. Fastboot is choice 2. I'm a flashaholic I've tried every rom in our development forum lol. I have bricked my AHD more times then anyone should this always worked for me. Try these things see if they help
Sent from my MB886 using xda app-developers app
Clean Flash
DeVoe41 said:
Ok so I have an Atrix HD that I rooted then went to install paranoid android on here. I made the mistake to try and install using Factory Recovery. So it threw an error in Fastboot. I used Myth Tools to get it back to stock. Then used Myth to install CWM Root it and unlock bootloader. Then went to install paranoid android again... Everything seemed to be going well but it just stayed on the Glowing X for 10-15 minutes. Knew something was up with it not loading into OS by then. So I tried to reinstall it again. No luck. Tried to use Myth Tools to go back to factory. Would just stay at Dual Core logo and do nothing. I went back in and installed CWM and tried to install Pacman Rom and it just stays at Pac is loading.
Fastboot still shows Bootloader as unlocked as it should, but is this the reason why Myth could not get me back to factory? I just want to get it back to factory at this point and worry about Rooting and installing Rom later. I have been searching and trying anything I can find on here, and droid razr forum. As well as various other sites and artices i find from google. I am at a lose. Have I bricked it enough to not come back from this or am I just missing something simple? I am looking for insight or help to get me in the right direction. I am on day 3 now off trying to get it running again.
I have tried in CWM formating Cache and re mounting it in Advance, Also have tried formating system, cache, davik cache... I did receive the can not mount errors but having formatting cache and remounting i did not get the error again.
Click to expand...
Click to collapse
I have a suspicion that for some odd reason, as Mythtools probably should have taken care of this, that there are some lingering files and caches that would cause any rom to fail upon install. I just posted something about this earlier today.
Read my post on this thread:
http://forum.xda-developers.com/showthread.php?t=2394238
PM me with any questions or problems and click the Thanks button if I helped.
I'm sorry I forgot to update I was able to get the phone working just had to do it through command prompt forcing you to file . The issue I had was using safestrap to install a ROM which somehow killed root access and the bootloader was not unlocked so and pretty much bricked the phone.
Sent from my MB886 using xda app-developers app
For recent custom roms, you must use a CWM with an unlocked bootloader.

[Q] Captivate Boot Looping Help

Hi I've searched some, and I haven't found anything for this setup. My captivate was working fine when I last used it a while back but when I turned it on, for a few weeks now, its been stuck in a boot loop. The problem is that I have never flashed custom roms or anything, its just been its stock- update as officially released,etc. Also, aside from that, I don't have any backups of anything because of computer issues. Is there anything I could do to just get it going again without chancing loosing all of the pictures I have on there?
CheesyMcTender said:
Hi I've searched some, and I haven't found anything for this setup. My captivate was working fine when I last used it a while back but when I turned it on, for a few weeks now, its been stuck in a boot loop. The problem is that I have never flashed custom roms or anything, its just been its stock- update as officially released,etc. Also, aside from that, I don't have any backups of anything because of computer issues. Is there anything I could do to just get it going again without chancing loosing all of the pictures I have on there?
Click to expand...
Click to collapse
Can you get to Download and / or recovery modes?
You could try a Factory Reset from recovery. All that I have read says that it does not delete pictures and music. You are likely to loose apps you have downloaded and the app data. (Double check to insure this is correct.)
If a factory reset does not work things get a bit more complicated. For example, you could possible move files from your phone to your PC using adb if you can get to download mode.
dawgdoc said:
Can you get to Download and / or recovery modes?
You could try a Factory Reset from recovery. All that I have read says that it does not delete pictures and music. You are likely to loose apps you have downloaded and the app data. (Double check to insure this is correct.)
If a factory reset does not work things get a bit more complicated. For example, you could possible move files from your phone to your PC using adb if you can get to download mode.
Click to expand...
Click to collapse
From what I've still been researching, anything factory reset is supposed to completely wipe everything on the phone. Is there any way to backup or get anywhere with download mode, because I can get into download mode, but it doesn't register with my computer so I don't know what I can do from it.

[Q] please help

idk what to do... i rooted using towel root on G flex 4.4.2 then i downloaded auto rec to get a recovery and now my phone wont boot. however i can plug it into a computer with it being recognized. My computer always asks to download new drives though and idk what i can do for this. Also don't know if my JUMP program coverage will allow me to get a new unit in store or have to wait
People really need to read before doing things. It's not hard to find that 4.4.2 does not have a compatible recovery yet. Slow down and read before jumping into something that could potentially turn your phone into a designer paperweight.
Sent from my LG-LS995 using Tapatalk
Omegared111 said:
idk what to do... i rooted using towel root on G flex 4.4.2 then i downloaded auto rec to get a recovery and now my phone wont boot. however i can plug it into a computer with it being recognized. My computer always asks to download new drives though and idk what i can do for this. Also don't know if my JUMP program coverage will allow me to get a new unit in store or have to wait
Click to expand...
Click to collapse
if you are getting a black screen on your phone and when you plug it in it shows to format a lot of drives, just go back into recovery and do a factory reset.
just got a swap out through tmobile for free #swag
podagee said:
if you are getting a black screen on your phone and when you plug it in it shows to format a lot of drives, just go back into recovery and do a factory reset.
Click to expand...
Click to collapse
Wow really. Just go back into recovery he already tried installing a custom recovery. Which there isn't a working custom recovery. But by doing so his factory reset recovery has been replaced by which ever custom recovery he has tried to install. Which means there is no factory reset.

NEED HELP - Android gone black

Moto X 2014: unrooted with bootloader unlocked. It's running Stock 5.1 and I haven't messed with anything on it. I gave it to my Dad after a few months of using it, so I factory reset it and gave it to him, 2 weeks later he tells me it has stopped working. It boots up normally, but from then on it is black, I can access minor parts of the OS such as the power off menu, the camera (by shaking) and Moto Display, but everything else doesn't work. I have never seen anything like this before, and I am well accustomed to flashing custom ROMs and rooting Android. If it comes down to it I will factory reset it or flash stock, but I can't even plug it into my PC and retrieve any files. Anyone have any idea whats gone wrong?
I have attached a video demonstrating what's happened to help diagnose the problem.
thomaswilloughby said:
Moto X 2014: unrooted with bootloader unlocked. It's running Stock 5.1 and I haven't messed with anything on it. I gave it to my Dad after a few months of using it, so I factory reset it and gave it to him, 2 weeks later he tells me it has stopped working. It boots up normally, but from then on it is black, I can access minor parts of the OS such as the power off menu, the camera (by shaking) and Moto Display, but everything else doesn't work. I have never seen anything like this before, and I am well accustomed to flashing custom ROMs and rooting Android. If it comes down to it I will factory reset it or flash stock, but I can't even plug it into my PC and retrieve any files. Anyone have any idea whats gone wrong?
I have attached a video demonstrating what's happened to help diagnose the problem.
Click to expand...
Click to collapse
If you search the forum here for "black screen" it has happened to other people as well on stock 5.1. Supposedly the fix is a factory reset.
Sent from my XT1095 using Tapatalk
AGISCI said:
If you search the forum here for "black screen" it has happened to other people as well on stock 5.1. Supposedly the fix is a factory reset.
Sent from my XT1095 using Tapatalk
Click to expand...
Click to collapse
Ok, It was just really surprising thats all. I will factory reset then. Thanks
I am having the exact same issue. Have you had a luck resolving it short of a factory reset?
My phone battery died last night. I plugged my phone in, let it get about 15% charge, then tried to turn it back on. The phone boots like normal, but after the boot animation goes away, the screen is black. Active notifications still seem to work, and I can hold the power button to get the Power Down option. I can boot into the bootloader & access recovery just fine. However, my phone is fully stock (no root, no bootloader unlock, no anything). I can't seem to access ADB when the phone is powered normally (ie, when I'm at this mysterious black screen), but it's possible that USB debugging isn't even enabled.
So far, I've found a few people who've said a full factory reset will fix the problem, but I'm looking for another solution, or at least a way to grab my data before I reset. Since my bootloader's still locked, I can't seem to use fastboot boot to boot into TWRP, and I can't find any other way to access my data to copy it off the phone. I've tried wiping the cache using the stock recovery to no avail. Any suggestions?
bjg222 said:
I am having the exact same issue. Have you had a luck resolving it short of a factory reset?
My phone battery died last night. I plugged my phone in, let it get about 15% charge, then tried to turn it back on. The phone boots like normal, but after the boot animation goes away, the screen is black. Active notifications still seem to work, and I can hold the power button to get the Power Down option. I can boot into the bootloader & access recovery just fine. However, my phone is fully stock (no root, no bootloader unlock, no anything). I can't seem to access ADB when the phone is powered normally (ie, when I'm at this mysterious black screen), but it's possible that USB debugging isn't even enabled.
So far, I've found a few people who've said a full factory reset will fix the problem, but I'm looking for another solution, or at least a way to grab my data before I reset. Since my bootloader's still locked, I can't seem to use fastboot boot to boot into TWRP, and I can't find any other way to access my data to copy it off the phone. I've tried wiping the cache using the stock recovery to no avail. Any suggestions?
Click to expand...
Click to collapse
Unfortunately I couldn't retreive any data from the phone, I can confirm however that a factory reset does fix the issue. The Android automatic backup does work in the broken state so I did manage to restore my settings and apps. But the internal sd card was wiped upon factory reseting. Just an idea of the top of my head: Try running adb backup and see if that works, and then unlocking the bootloader, flashing twrp, restoring the backup, and finally transfering the internal sd card data to a mounted drive using twrp. Thats just a stab in the dark and i dont have the phone on me to test it. Give it a try and lets hope Motorola will fix this bug soon.
Ok, thanks. I did try adb backup, but adb won't recognize the device when it's "booted" & sitting at the blank screen, and the stock recovery doesn't give full adb access. I'm currently looking into the various data recovery options to maybe pull some stuff off after reseting. It's really only a few files that I need, so maybe that will work?
bjg222 said:
Ok, thanks. I did try adb backup, but adb won't recognize the device when it's "booted" & sitting at the blank screen, and the stock recovery doesn't give full adb access. I'm currently looking into the various data recovery options to maybe pull some stuff off after reseting. It's really only a few files that I need, so maybe that will work?
Click to expand...
Click to collapse
Unfortunately the internal SD card mounts using MTP and not like a flash drive, so using the usual methods through Windows to recover wont work. However you could try and restore your internal sd card using this solution: http://goo.gl/OKdV14
As for accessing adb through recovery, you could try this method: http://goo.gl/5T7bhq
Hopefully one of these methods should work, so you can at least recover some of your files.
I had the same problem today. I tried to backup a twrp backup I have made few weeks ago but I still had the black screen. The only solution is to factory reset...
Happily I could have saved my data when I was on TWRP. Anyone knows how to restore sms from the data I have saved ?

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