[Q] Boot loop can't access bootloader :( - Nexus 7 Q&A, Help & Troubleshooting

Ok, got a Nexus 7 2012 16gb, and was trying to get f2fs sorted. For some reason my Nexus is now in a constant boot loop and resets itself in a boot loop between seeing the Google logo and then it goes to the recovery and reboots within 2 seconds and keeps doing this until the battery dies.
If I press power & VOL down it doesn't go to fastboot, it just repeats the above.
I think I may have buggered up the fastboot and without this I cannot find a way to reinstall default image from Google
I'm thinking I've hard bricked the device but would appreciate confirmation before I go purchasing a new one.
I've also wondering if it is hard bricked whether any UK person can sort this out for a fee?

OMG!!! I have to admit I had given up on this until I found this post by timmytim which has saved my Nexus!!!!!
Followed these instruction, went mad resending command and up came the bootloader screen! Nice one timmytim
http://forum.xda-developers.com/showpost.php?p=53057628&postcount=18

Thanks for posting the solution
Enviado desde mi Nexus 7 mediante Tapatalk

Related

[Q] Nexus 10 Bricked :/

Hey,
I need some help with my Nexus 10, it's stuck at the moment.
I ran fastboot oem unlock via the Samsung Google Nexus 10 ToolKit 1.3.0 (updated for 4.2.2) and as soon as it was done it rebooted and was stuck...
Booting normally it gets to the bootlogo and just sits there forever, going round and round and round.
If I try to boot into fastboot it shows that it's unlocked but I can't change change to recovery using the volume rocker it's just a solid static screen, only choice is to start which boots back into the normal boot logo.
I have no way to use adb or fastboot... it's just stuck :/ How do I recover/unbrick this?
Any help would be much appreciated.
Hyflex said:
Hey,
I need some help with my Nexus 10, it's stuck at the moment.
I ran fastboot oem unlock via the Samsung Google Nexus 10 ToolKit 1.3.0 (updated for 4.2.2) and as soon as it was done it rebooted and was stuck...
Booting normally it gets to the bootlogo and just sits there forever, going round and round and round.
If I try to boot into fastboot it shows that it's unlocked but I can't change change to recovery using the volume rocker it's just a solid static screen, only choice is to start which boots back into the normal boot logo.
I have no way to use adb or fastboot... it's just stuck :/ How do I recover/unbrick this?
Any help would be much appreciated.
Click to expand...
Click to collapse
Reboot holding Power and both volume buttons and you should be able to get to recovery
brees75 said:
Reboot holding Power and both volume buttons and you should be able to get to recovery
Click to expand...
Click to collapse
I'm on the xda-devs irc at the moment and we've got so far... but still its messed up.
- Recovery is dead (can't get into it atm, orange triangle guy every time)
- Flashed stock via fastboot and unrooted, but on reboot I get the triangle guy.
- I can boot into unsecure roms (temporary)
- I can boot into temporary recoverys, clearing cache works but davlik cache and factory reset doesn't work both say "failed"
I'm currently awaiting the guy whos been helping me get back from the shops.
From what I remember you need to either install something or run a command after "oem unlock" for security reasons. Android wont let you boot back into the OS until you have wiped all the data after the unlock.
The orange guy means it's working. There's a button combo to hit at that screen to get the recovery to boot. Once there do a factory reset and your done.
That's why toolkits sick, they teach you nothing and when they break your stuck
Sent from my Nexus 10 using Tapatalk HD
Can you flash a factory image to it via fastboot?
Rock Chalk Jayhawk!
altimax98 said:
The orange guy means it's working. There's a button combo to hit at that screen to get the recovery to boot. Once there do a factory reset and your done.
That's why toolkits sick, they teach you nothing and when they break your stuck
Sent from my Nexus 10 using Tapatalk HD
Click to expand...
Click to collapse
The pressing 3 buttons at once; cycling to recovery... method wasnt working because there was no recovery accessable what so ever and temporary recoveries weren't working.
That's what a few guys in IRC said too about the toolkits haha
Thankfully some guy by the name of YellowGTO spent some time helping me out and we finally got there in the end, he's awesome and extremely patient
jlvlawrence said:
Can you flash a factory image to it via fastboot?
Rock Chalk Jayhawk!
Click to expand...
Click to collapse
Okay, updates for everyone just incase someone else gets the problem.
- Factory Images via fastboot flashed fine but never stuck, just kept returning me to triangle dude.
- Fix permissions, did nothing
- Restoring stock recovery did nothing, I still couldn't get to a recovery.
- Temporary recoveries only had limited functionality.
I decided to unlock an already unlocked phone again
I flashed stock, Ran file permissions
Used the temporary recovery to clear the cache/davlik (previously didn't work)
I re-rooted, Installed TWRP 2.4.4.0, this finally stuck.
I double checked that it had stuck by booting the system, rebooting into recovery, powering device of and powering it on to Android. It was all working perfectly.
I then made my backup and put a custom rom and kernel on, it's working lovely now.
It seems that somewhere during the oem unlock it messed up some partitions or something resulting in recoveries and flashing not to work/stick.
Good to hear it's working for you. The issue is that the stock N10 bootloader does not wipe the data partitions correctly as it should. So after an unlock you need to go into the stock recovery and wipe it. Boot once, then go and flash all your flasheys
Sent from my Nexus 10 using Tapatalk HD
altimax98 said:
Good to hear it's working for you. The issue is that the stock N10 bootloader does not wipe the data partitions correctly as it should. So after an unlock you need to go into the stock recovery and wipe it. Boot once, then go and flash all your flasheys
Sent from my Nexus 10 using Tapatalk HD
Click to expand...
Click to collapse
That's the thing, the recovery wasn't available in any way shape or form and temporary recoveries wouldn't wipe the cache... the oem unlock went wrong somehow even though it had full power, wasn't interrupted or anything.
I'm glad it's all working now, I thought the device was completely dead at one stage.
I think you had the problem almost everyone runs into:
As you can see in the video, you just have to try for a bit to actually get the recovery menu to open - My heart dropped a little before I knew that as well
anazei said:
I think you had the problem almost everyone runs into:
As you can see in the video, you just have to try for a bit to actually get the recovery menu to open - My heart dropped a little before I knew that as well
Click to expand...
Click to collapse
I think you are right and that was his problem..... The toolkit actually told him how to handle this ... but who reads all the that text anyway

Help, My Nexus 7 is dead!

I have a Nexus 7 2012 version since 2014, after many updates and installing apps it was becoming slowly and unusable, so I dicided to flash and install Cyanogenmod 12.1, after installing it, all was fast and smooth, I loved it, but after a month it was turning laggy again, so I decided to use Nexus Root Toolkit to come back to 4.4.4 stock. After flashing, the tablet still in recovery mode, I selected START using the buttons, and the Google logo appeared but a little message in the corner of the screen scared me, it said "booting failed" , so I tried to flash again, but now using the option "the tablet is bricked/bootloop" but it didn't work, so I tried to turn off the tablet and power in again, but nothing happened when I tried to turn on again, the tablet didn't turned on and now it still off, when I plug the charger the battery logo doesn't appear and tried to press the power button for 30 seconds without success, I need help guys, someone told me that it will be possible to fix it, but he doesn't know how to do it.
Thanks for your attention!
Hello,
please charge you Nexus 7 (2012) 2 hours and then try to boot into Fastboot-Mode!
Try holding power button and volume down until the Google logo shows up
I fixed my nexus 7 doing that when it wouldn't turn on
Trafalgar Square said:
Hello,
please charge you Nexus 7 (2012) 2 hours and then try to boot into Fastboot-Mode!
Click to expand...
Click to collapse
Sorry , it didn't work
Ramon Dag said:
Try holding power button and volume down until the Google logo shows up
I fixed my nexus 7 doing that when it wouldn't turn on
Click to expand...
Click to collapse
Sadly, it didn't work neither
Someone could help me? I don't know what to do.
Hardware problem, perhaps
HAMH96 said:
Someone could help me? I don't know what to do.
Click to expand...
Click to collapse
About a year ago, I decided to try the 5.0 release. Upon installation and reboot, It stuck at the "Google" logo. I was able to get into the bootloader, and it said it was still unlocked, but I couldn't do anything: boot to system failed, and even boot to recovery failed. Formatting/deleting the various partitions failed (cache partition was corrupt but couldn't be formatted); flashing a bootloader from the latest Google images didn't help.
I fixed it by buying a used motherboard from eBay for $30. It was fine with 4.4.4/f2fs for about three months, but when I once again upgraded to 5.0, the *exact same* thing happened.
I now have yet another motherboard and will not ever upgrade past KitKat.

Phone reboots while gaming and ends in a endless bootloop

about a week ago i have been playing some online game (LOD but doesnt matter i think) and suddenly the phone rebooted. "well happens" i thought. but after the google logo the rom didnt start. phone rebooted. unlocked warning screen and google logo loop.
i got ito bootloader and tried to start recovery. got the same result as when starting it normally.
"fastboot flash recovery twrp-3.1.img" said OKAY but again cant get into recovery just unlocked warning and google logo loop.
"fastboot boot twrp-3.1.img" said OKAY, rebooted the phone just to get another unlocked warning and google logo loop.
"fastboot format recovery" returned
Code:
Formatting is not supported for filesystem with type ''.
is that normal? shouldnt it return the normal formatting output like when i did "fastboot format cache" ?
can it be both boot and recovery partition's filesystems are messed up? if so how to repair/restore them?
can it be im also a victim of this https://forum.xda-developers.com/nexus-6p/help/endless-bootloop-nexus-6p-t3512377 ? really need to RMA my phone?
4RK4N said:
can it be im also a victim of this https://forum.xda-developers.com/nexus-6p/help/endless-bootloop-nexus-6p-t3512377 ? really need to RMA my phone?
Click to expand...
Click to collapse
Yes, if you cannot fastboot flash or fastboot boot recovery there is no solution. There is another thread on BLOD here.
got it back from rma. took 8 days only. reflashed purenexus and everything restored from gdrive.
basically i got a new phone except my scratched case and maybe my battery. mainboard replaced.
Sent from my Nexus 6P using XDA Labs
4RK4N said:
got it back from rma. took 8 days only. reflashed purenexus and everything restored from gdrive.
basically i got a new phone except my scratched case and maybe my battery. mainboard replaced.
Click to expand...
Click to collapse
Hey,
Just out of curiosity... Can you boot to bootloader, scroll to barcode, press power and tell us the manufacturing date, please?
Thanks...
5.1 said:
Hey,
Just out of curiosity... Can you boot to bootloader, scroll to barcode, press power and tell us the manufacturing date, please?
Thanks...
Click to expand...
Click to collapse
DATE (mm-dd-yyy): '10-06-2016'
originally bought my n6p in january 2016
Sent from my Nexus 6P using XDA Labs
Thanks...

[SOLVED] OnePlus 2 won't boot to recovery...

I have tried flashing both TWRP and the original recovery through Fastboot but the phone just won't boot to neither recovery. If I try to boot recovery, the phone gets stuck to the first boot screen with white oneplus logo in the middle.
Im running OxygenOS 3.1.0 on my OnePlus 2 device. The phone has encryption but I can't remove it. There is no option in settings to remove the encryption and if I try to do a factory reset through settings, the phone reboots and gets stuck the same way when I try to boot to recovery.
I can still boot to my current ROM but I wan't to get rid of it. I can't think of any way to decrypt the phone and I think this recovery issue is encryption related. The phone booted fine to both recoveries before I encrypted the phone. Is there any way to remove this retarded encryption? I want the phone completely wiped clean and start fresh. I will never encrypt my phone again...
You should try second method in this https://forums.oneplus.net/threads/...ck-guide-for-a-hard-bricked-oneplus-2.347607/
It will restore the phone back to original.
Hope this helped.
Sent from my ONE A2005 using Tapatalk
[SOLVED]
I solved this issue just now by using this OnePlus 2 unbrick guide from YouTube:
For me it didn't boot straight away to the recovery like at 2:16 in the video (my phone got stuck again to the OnePlus logo screen). I had to turn off the phone first and then boot again to make it work. Case SOLVED!
4z4 said:
I solved this issue just now by using this OnePlus 2 unbrick guide from YouTube:
For me it didn't boot straight away to the recovery like at 2:16 in the video (my phone got stuck again to the OnePlus logo screen). I had to turn off the phone first and then boot again to make it work. Case SOLVED!
Click to expand...
Click to collapse
my Google Pixel XL is like that...
can you maybe help me to fix it too?
tasty_boy said:
my Google Pixel XL is like that...
can you maybe help me to fix it too?
Click to expand...
Click to collapse
I'm not familiar with Google phones but I suggest you try to find unbrick guide for your phone model if nothing else works. Good luck!

Nexus 6P First Bootloop

Was reading a PDF on my phone today when it suddenly crashed and is now stuck in a bootloop. Tried flashing factory images but no luck. Tried booting into twrp from fastboot didn't work. Reading some of the other posts I assume the phone is dead, has anyone got any suggestions?
thanks
Boot loop plus no recovery equals BLOD. Sorry but likely you are done.
CyberpodS2 said:
Boot loop plus no recovery equals BLOD. Sorry but likely you are done.
Click to expand...
Click to collapse
Yeah that's what I thought. Just ordered samsung S8 hopefully it'll come soon can't live without a phone

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