No fastboot, adb and bootlooping - Nexus 7 Q&A, Help & Troubleshooting

Hi,
I have multirom installed and tried to install a android 5.0 rom. After installation I had some kind of boot loop: google logo -> restart
After that I rebooted via fastboot to recovery, but after the splash screen it rebootet and I got again the boot loop.
My next step was to try fastboot boot with the multirom recovery image and my default boot.img, but no success...
Then I noticed that I need for this 5.0 rom the 4.23 bootloader, so I upgraded from 4.13 (I think).
Same after that...
Then I tired fastboot boot with a stock TWRP recovery image for nexus 7 (2012) and I got a new kind of bootloop after that: google logo -> TWRP Logo -> restart
And now it tries to boot TWRP every time I turn on the devices and can't boot to fastboot (via vol - button) and adb is not working too...
Any ideas?

Download factory image and do a clean flash with wug tool kit. This will fix it.

To install the factory image, I need fastboot and I can't enter fastboot mode.

ThauExodus said:
Hi,
I have multirom installed and tried to install a android 5.0 rom. After installation I had some kind of boot loop: google logo -> restart
After that I rebooted via fastboot to recovery, but after the splash screen it rebootet and I got again the boot loop.
My next step was to try fastboot boot with the multirom recovery image and my default boot.img, but no success...
Then I noticed that I need for this 5.0 rom the 4.23 bootloader, so I upgraded from 4.13 (I think).
Same after that...
Then I tired fastboot boot with a stock TWRP recovery image for nexus 7 (2012) and I got a new kind of bootloop after that: google logo -> TWRP Logo -> restart
And now it tries to boot TWRP every time I turn on the devices and can't boot to fastboot (via vol - button) and adb is not working too...
Any ideas?
Click to expand...
Click to collapse
I was stuck the same way yesterday. Use the WUGS Nexus Root Toolkit. http://forum.xda-developers.com/showthread.php?t=1766475
I had to fool around with it before it would see the device, but once it did, I flashed the LRX21P and was off and running.

When I want to use in the toolkit "Back to Stock (Soft-Bricked/Bootloop) it asks me to tsrat into fastboot mode... but I can't... but I can get the device into apx mode...

Bump...

ThauExodus said:
When I want to use in the toolkit "Back to Stock (Soft-Bricked/Bootloop) it asks me to tsrat into fastboot mode... but I can't... but I can get the device into apx mode...
Click to expand...
Click to collapse
You mention TWRP - are you able to boot into TWRP, or does it just show the splash and reboot again? If you can get into TWRP, you could conceivably use ADB mode and sideload something...

Splash and reboot... I already tried to get adb access, but no success...

Related

Tried going back to Stock

i unrooted my nexus 7 and now it is stuck at boot loop i just stuck at the boot logo.. the unooting method had to be success cause it said and it re booted it just stuck at boot logo
Ok so Power off your device, or whilst its rebooting hold the Volume Down button.
You should get back to your BootLoader
Plug it into PC and then do fastboot devices.
Your device should be listed.
I would re-unlock your bootloader.
Then Download TWRP - http://techerrata.com/file/twrp2/grouper/openrecovery-twrp-2.6.3.0-grouper.img
Put that in your Fastboot folder on your PC and type: fastboot flash boot openrecovery-twrp-2.6.3.0-grouper.img
That should flash TWRP. Then push volume up in your bootloader menu, until you see "Recovery".
Open the Recovery and TWRP should load.
Then go to : https://developers.google.com/android/nexus/images#nakasi
Download the correct stock image depending on your version you were at before you tried doing what you did.
Then, depending on the version you downloaded do this (I'll use the 4.2.2 one as example).
On TWRP, go to "Advanced"
Then you should see "Sideload"
Choose sideload and swipe accross, it should now say something like "Waiting for sideload".
Go back to your PC And open another CMD as you would for fastboot.
Type adb sideload nameofyourdownloadedimage.img
Wait for sideload and whalla
(I may have missed something, if so when you get stuck let me know and I'll help further".
wilks3y.
Are you stuck at the "Google" splash or the "X" bootanimation?

updated to 4.4.1 stuck in boot animation!

Installed 4.4.1 via TWRP this morning, but it is stuck in reboot. Just keeps doing the colliding circles!
Tried rebooting a couple of times. Can get to fastboot, But device isn't seen by adb, and fastboot only shows start (no recovery option)
Any ideas at this point?
RedBullet said:
Installed 4.4.1 via TWRP this morning, but it is stuck in reboot. Just keeps doing the colliding circles!
Tried rebooting a couple of times. Can get to fastboot, But device isn't seen by adb, and fastboot only shows start (no recovery option)
Any ideas at this point?
Click to expand...
Click to collapse
I would recommend flashing the 4.4 stock factory image from here in fastboot mode. Then once your device is booting up properly again I would recommend taking a look at this guide to properly install the 4.4.1 update.
You MUST either side load or safer still, un-root(if rooted) and flash stock recovery and sideload and then re-flash custom recovery and re-root if needed.
If you are able to get to fastboot:
Fastboot flash recovery recovery.img ( use stock)
Fastboot reboot-bootloader
go into to stock recovery - wait for dead droid, one you see him, go into recovery by holding volume+ and power at same time
follow the orange instructions to sideload via adb - which should now work
reboot and validate all is well
reboot into bootloader and re-flash your custom recovery and root (if needed)
Enjoy.
planet_x69 said:
You MUST either side load or safer still, un-root(if rooted) and flash stock recovery and sideload and then re-flash custom recovery and re-root if needed.
If you are able to get to fastboot:
Fastboot flash recovery recovery.img ( use stock)
Fastboot reboot-bootloader
go into to stock recovery - wait for dead droid, one you see him, go into recovery by holding volume+ and power at same time
follow the orange instructions to sideload via adb - which should now work
reboot and validate all is well
reboot into bootloader and re-flash your custom recovery and root (if needed)
Enjoy.
Click to expand...
Click to collapse
Thanks, I eventually got it. I was really puzzled that I couldn't select recovery from the bootloader. All set now though, thanks!
I hae also updated to 4.4.2 but now my N10 is stuck at the Google start page. Please help?
jalize said:
I hae also updated to 4.4.2 but now my N10 is stuck at the Google start page. Please help?
Click to expand...
Click to collapse
If you mean stuck at boot animation, then I suspect you used TWRP to flash?
I found that TWRP was not able to clear caches, so I use CWM instead. Worked like a champ...
RedBullet said:
If you mean stuck at boot animation, then I suspect you used TWRP to flash?
I found that TWRP was not able to clear caches, so I use CWM instead. Worked like a champ...
Click to expand...
Click to collapse
No I used the adb sideload command for the OTA. That all went well but now I'm stuck at the google page even before the animations begin!
jalize said:
No I used the adb sideload command for the OTA. That all went well but now I'm stuck at the google page even before the animations begin!
Click to expand...
Click to collapse
Hold volume up and power to get it to recycle, and immediately hold all three buttons down to get to bootloader. Try clearing your caches from recovery
RedBullet said:
Hold volume up and power to get it to recycle, and immediately hold all three buttons down to get to bootloader. Try clearing your caches from recovery
Click to expand...
Click to collapse
Tried that already, still stuck at Google page before animations. Everything is stock on this tablet with root.
jalize said:
Tried that already, still stuck at Google page before animations. Everything is stock on this tablet with root.
Click to expand...
Click to collapse
Hi,
Try flashing it fresh stock again, factory reset your device from recovery, download the stock image file from here, untar it, then unzip the zip inside the tar and you'll get some files (.img). Copy those files to your fastboot folder and then open a cmd there. (Guessing that you're using Windows)
Code:
fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash cache cache.img
If you're using Linux, do the same, but instead of only fastboot use:
Code:
sudo ./fastboot
Then boot it. I had the same problem when I updated mine to 4.4.1, but I did one thing a little different... Instead of fully "stocking" it again, I flashed back 4.3, flashed 4.4 OTA and then let it boot, without wiping my data, after all it was running like this before. Worked. But as I'm unsure of your situation I think it's more secure and easier to fully stock it again.
Hope this helps,
~Lord
PS.: Remember to put your device in fastboot mode!

[Q] Soft Bricked, Stuck on boot even after stock image restore

Status: Stuck on boot image
Solutions tried:
1. Factory reset + custom rom
2. Factory reset + stock rom
3. Full wipe with stock image from google dev.
4. WugFresh Root tool kit - Soft bricked + stuck in bootloop option.
I think that covers most of the solutions out there that I could find. It is always stuck on the boot screen. Left it for hours but it was basically stuck. I've seen other people's issues resolved by doing at least one of the above.
IS there something I'm missing? Any solutions?
Update: Ended up getting a replacement (was under warranty). I tried all possible solutions. The factory setup for 4.2.2 was the only one that would boot. But I did not have IMEI and Baseband. Nothing seemed to work. Not sure what would cause that.
Quest_in said:
Status: Stuck on boot image
Solutions tried:
1. Factory reset + custom rom
2. Factory reset + stock rom
3. Full wipe with stock image from google dev.
4. WugFresh Root tool kit - Soft bricked + stuck in bootloop option.
I think that covers most of the solutions out there that I could find. It is always stuck on the boot screen. Left it for hours but it was basically stuck. I've seen other people's issues resolved by doing at least one of the above.
IS there something I'm missing? Any solutions?
Click to expand...
Click to collapse
Did you try this guide here
mrhiab said:
Did you try this guide here
Click to expand...
Click to collapse
Thanks. Yes I tried that right after the recoveries failed to do anything. Its really weird because once the system is stuck at the boot image, the computer after a while tries to communicate over USB but fails. As if the boot animation is just a front and Android is trying to do something to load for the first time. I'm not sure what got corrupted. All this started randomly 4 days after I had flashed a nightly update on Omni.
Update: So i tried to flashing a custom ROM (oh WTH moment) and see if that makes any difference. (CM 11 Nightly from JAN 26). The system actually booted up to the android is upgrading screen this time. Now it is stuck on "Starting Apps" screen. Progress? i'm not sure if the stock was already NOT doing this behind the scene. Is there a reason for it to be stuck here? Is this some sort of indicator?
fastboot erase system -w
fastboot erase boot
fastboot erase recovery
Now grab the latest twrp.img
fastboot flash recovery nameofrecovery.img
Now boot to new recovery
Go to advanced
Choose adb sideload
adb sideload nameofrom.zip
adb sideload gapps.zip
Reboot
Profit
Sent from my Nexus 4 using XDA Premium 4 mobile app
Factory reset + Factory image + Bootloader relock + bootloader unlock + install twrp + factory reset
demkantor said:
fastboot erase system -w
fastboot erase boot
fastboot erase recovery
Now grab the latest twrp.img
fastboot flash recovery nameofrecovery.img
Now boot to new recovery
Go to advanced
Choose adb sideload
adb sideload nameofrom.zip
adb sideload gapps.zip
Reboot
Profit
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
blttalas said:
Factory reset + Factory image + Bootloader relock + bootloader unlock + install twrp + factory reset
Click to expand...
Click to collapse
Hello I'm experiencing the exact same problem, tried both these solutions to no avail. Stock 4.2.2 image the the only one that boots, but with no IMEI or network connection whatsoever. Is there anything else I can try to fix this? Thanks.

Flashed the wrong recovery

I followed this guide to root my Nexus 10, did the oem unlock, downloaded the linked version of TWRP and flashed it via fastboot, now it won't boot and I can't get into recovery mode, because the version of TWRP was apparently meant for the Nexus 7 aka Flo.
It starts booting normally, but the boot animation just seems to go on forever, I waited around 30 minutes for it to finish but it didn't.
I can get into fastboot mode, but can't change the boot option and I haven't been able to flash anything (doesn't show up with fastboot devices), Windows recognizes the device as "Gadget Serial".
Is there anything I can do?
codfreak said:
I followed this guide to root my Nexus 10, did the oem unlock, downloaded the linked version of TWRP and flashed it via fastboot, now it won't boot and I can't get into recovery mode, because the version of TWRP was apparently meant for the Nexus 7 aka Flo.
It starts booting normally, but the boot animation just seems to go on forever, I waited around 30 minutes for it to finish but it didn't.
I can get into fastboot mode, but can't change the boot option and I haven't been able to flash anything (doesn't show up with fastboot devices), Windows recognizes the device as "Gadget Serial".
Is there anything I can do?
Click to expand...
Click to collapse
Install the ADB drivers on your PC, and then use the command prompt to boot into recovery : adb reboot recovery
http://lifehacker.com/the-most-useful-things-you-can-do-with-adb-and-fastboot-1590337225
What? I can't boot into recovery mode because I flashed a recovery for the Nexus 7. And I can't use ADB because I can't boot into Android either.
Use WugFresh Nexus Root Toolkit. It's worked for me on tablets that could not get past the bootloader on their own.
http://www.wugfresh.com/nrt/
1) Press power + volup + voldown and enter bootloader
2) Flash recovery with command:
fastboot flash recovery recovery.img
done

Tried updating TWRP now can't get into recovery.

Bear with me, I had an older version and maybe just my method but I had messed up the custom rom I had on so I went to put a new one on and wanted to update TWRP at same time.
I installed the new custom rom, then installed TWRP and correctly clicked recovery.
However now recovery just goes into fastboot mode, I went into the dev settings and put usb debugging on, authorised it but each time it goes into fastboot it is not recognised and when I reboot into phone usb debugging has been disabled.
So now I can't get into recovery to flash a new rom, nor can I put twrp on by fastboot.
Stuck at what to do
Using Havoc OS
Try booting into the recovery from fastboot
Boot into fastboot and type
Fastboot boot recovery.img (recovery.img is the file saved on your pc)

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