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Shield doesnt boot anymore

So guys, i've done it. I bring my first device.
Yesterday i tried to downgrade via fastboot with this recovery images https://developer.nvidia.com/gameworksdownload (yes is choose the right ones)
flash boot, check
flash recovery, check
flash system, failes (insufficient memory)
erase sytem, check
flash system, failed (insufficient memory)
flash twrp, check, but no usb mouse so
flash cwm, check
factory reset, check
rom.zip and gapps on sd card, check
reboot, boot into bootloader, no chance
It boots everytime normal, so i cant enter the recovery.
Connect it to charger, check
charging led lights up, check
Go sleeping, check
doenst boot into bootloader :/
Back to charger
Now I wanted to try it again and i wont even boot.
Anyone has an Idea? Or is it really bricked?

Can you still see the device listed using fast boot?

No, because I can't enter the bootloader or the recovery. But it boots again
...

The same thing just happened to me. Unfortunately, I am still trying to figure it out. I flashed a "stock" recovery that I had found in order to be able to take the OTAs. Now when I boot, I just stay stuck on the NVIDIA splash screen.....been there for hours.

rafaelvelasquez2 said:
The same thing just happened to me. Unfortunately, I am still trying to figure it out. I flashed a "stock" recovery that I had found in order to be able to take the OTAs. Now when I boot, I just stay stuck on the NVIDIA splash screen.....been there for hours.
Click to expand...
Click to collapse
Same here.....

Mine is working again. Booting in the bootloader is a little bit tricky.
Have you tried to flash all? Boot.img, recovery.img and system.img?
...

I had the same issue. But after trying to get into the bootloader using POWER + VOLUME DOWN for about 15 minutes it finally went to the bootloader and I was able to re-flash it. I have a feeling it's the cludgy power button.

You do not need to flash the stock recovery to take the ota. I have taken 2 otas now on custom recovery without any issue and without loosing root. Just an FYI.
Sent from my SHIELD Tablet using XDA Free mobile app

I just did a factory reset under lollipop, locked boot-loader rooted and it rebooted to the green android screen then dropped into CWM and asked to fix root. I said no, then it went to the nvidia boot logo and it is stuck. Any suggestions? Thanks.
Edit: nevermind, I just powered it off after about 20 minuets and it hung again. When I plugged it into my pc, it finally poped into the setup/welcome screen. Pretty weird. Heart attack averted

Nexus 5 stuck at boot animation after flashing stock 5.0

First of all, I have gone through every similar post, but none helped and so created a new post
Device: Nexus 5
Tried to flash: Stock 5.0 image from Google's website
Bootloader unlocked: Yes
Method used: http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Tried step 1, it gave an error: archive does not contain system.sig, but it still went ahead with the process and when tried to boot into recovery to perform a wipe data/factory reset, it showed a small Android logo with a red triangle and exclamation mark.
So I tried step two and manually flashed all the files in the order and in the end (after erasing cache), I tried booting into recovery again and got the same thing. Android logo with a red triangle and exclamation mark inside it. I thought the recovery wouldn't have flashed properly, I booted into bootloader again and manually flashed recovery.img and tried. Still the same. WIthout doing a wipe data/factory reset, I do not think the phone will boot up properly. What am I to do here? Stuck in this and cannot use the phone at all. Any help at all is welcomed. Thanks in advance!
Any questions, please ask me.
Edit: I tried locking and then unlocking the bootloader and tried step 2, while booting into the recovery mode, instead of the red triangle, I got the standing Android logo with the blue sphere sort of thing revolving in it. What do I do next when I see that Android logo? Thank you

troll_warhead said:
First of all, I have gone through every similar post, but none helped and so created a new post
Device: Nexus 5
Tried to flash: Stock 5.0 image from Google's website
Bootloader unlocked: Yes
Method used: http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Tried step 1, it gave an error: archive does not contain system.sig, but it still went ahead with the process and when tried to boot into recovery to perform a wipe data/factory reset, it showed a small Android logo with a red triangle and exclamation mark.
So I tried step two and manually flashed all the files in the order and in the end (after erasing cache), I tried booting into recovery again and got the same thing. Android logo with a red triangle and exclamation mark inside it. I thought the recovery wouldn't have flashed properly, I booted into bootloader again and manually flashed recovery.img and tried. Still the same. WIthout doing a wipe data/factory reset, I do not think the phone will boot up properly. What am I to do here? Stuck in this and cannot use the phone at all. Any help at all is welcomed. Thanks in advance!
Any questions, please ask me.
Edit: I tried locking and then unlocking the bootloader and tried step 2, while booting into the recovery mode, instead of the red triangle, I got the standing Android logo with the blue sphere sort of thing revolving in it. What do I do next when I see that Android logo? Thank you
Click to expand...
Click to collapse
I just flashed my nexus 5. i am getting the *.sig error too. After flashing, it was taking very long time in boot animation. I nearly to force shutdown. But after around 10 minutes, it is successfully boot.
sorry for my english, just wanted to share my experience. hopefully it help

troll_warhead said:
First of all, I have gone through every similar post, but none helped and so created a new post
Device: Nexus 5
Tried to flash: Stock 5.0 image from Google's website
Bootloader unlocked: Yes
Method used: http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Tried step 1, it gave an error: archive does not contain system.sig, but it still went ahead with the process and when tried to boot into recovery to perform a wipe data/factory reset, it showed a small Android logo with a red triangle and exclamation mark.
So I tried step two and manually flashed all the files in the order and in the end (after erasing cache), I tried booting into recovery again and got the same thing. Android logo with a red triangle and exclamation mark inside it. I thought the recovery wouldn't have flashed properly, I booted into bootloader again and manually flashed recovery.img and tried. Still the same. WIthout doing a wipe data/factory reset, I do not think the phone will boot up properly. What am I to do here? Stuck in this and cannot use the phone at all. Any help at all is welcomed. Thanks in advance!
Any questions, please ask me.
Edit: I tried locking and then unlocking the bootloader and tried step 2, while booting into the recovery mode, instead of the red triangle, I got the standing Android logo with the blue sphere sort of thing revolving in it. What do I do next when I see that Android logo? Thank you
Click to expand...
Click to collapse
The first boot takes a LONG time. Just let it go for a while.

jsgraphicart said:
The first boot takes a LONG time. Just let it go for a while.
Click to expand...
Click to collapse
So, I did try as you said. I left it but it kept booting for more than 20 minutes. What to do now?

Same thing happened to me.. You just have to do a factory wipe and then reboot..
When you get to the screen with dead android, with the power button pressed, press vol up key once and you will be in the recovery screen. Do a factory wipe from the screen and reboot..
It should be working now..

manujosephv said:
Same thing happened to me.. You just have to do a factory wipe and then reboot..
When you get to the screen with dead android, with the power button pressed, press vol up key once and you will be in the recovery screen. Do a factory wipe from the screen and reboot..
It should be working now..
Click to expand...
Click to collapse
Incredible. That, worked! I did a rookie mistake by pressing both at the same time which led to nothing. Got it up and running. Thank you everyone for their inputs, couldn't have done without it

The factory wide and reset does not work for me. Stills tuck at the boot animation.

I recently had the same issue with my Nexus 5 and have been back and forth with Google Play support to resolve the issue with no success on that front. However I did get my issue resolved, which was caused by a corrupt /persist filesystem. What I did was this:
Flash CWM Recovery
Reboot into Recovery
notice that /persist isn't mounted, try mounting it and it will fail
Launch and ADB shell
run 'e2fcsk /dev/block/platform/msm_sdcc.1/by-name/persist'
let it fix any errors found
try to mount the /persist partition, it should work now
(Optional) reboot to bootloader, flash whichever recovery you want or stay with CWM
reboot into system, all should be fine now
After successfully repairing and mounting /persist within CWM Recovery I powered off and just flashed the stock 5.0 image from the Google Factory Images page.
A special thanks to bitdomo for his information here which ultimately fixed my issues:
http://forum.xda-developers.com/showpost.php?p=54252961&postcount=3

[Q] My OPO is stuck in recovery

My phone was working fine till this morning when I had some weird phantom touch issues. So I thought to simply reboot my phone and see if that helps.
When I rebooted... it went straight into TWRP Recovery (2.8.0.1).
I tried System Reboot from there. Straight back into TWRP.
I tried restoring an old backup and rebooting. Straight back into TWRP.
I tried factory reset, wiping everything manually, installing new roms, installing old roms (all of which have worked before)... everything just booted into recovery instead of system rebooting.
I tried powering off and booting into Fastboot by holding down Power + Vol Up buttons. The phone can turn off successfully, but it will not enter Fastboot. I just get a black screen after the 1+ square logo.
Whatever I do, my phone seems to be stuck in recovery. What can I do to fix it? Thank you!

Try this:
http://forum.xda-developers.com/showthread.php?t=2991851
Transmitted via Bacon

I am having a same problem. Did above post worked?

stuck in loop, possibly a different kind of loop

I was trying to fix my girlfriends nexus 5 that was doing the restart loop after an update. Everything seemed to go fine. Unlocked the bootloader, etc. Flashed the newest rom (6.0.1 (MMB29S) ce1d670f61061c3902f3997510ea55d7 6bfcdfa4f4840898e5d76fa044f5e6a0f71343bf) and then something obviously went wrong (not quite sure, dont think i touched anything) and it's now stuck in a different kind of loop that only loops while it's plugged in. Ive uploaded a video to youtube, but since im a new user i cant actually link it properly yet. Hopefully this wont annoy any mods, I promise it's not spam. youtube . be / yNSoiTPnGZw
Is there any way to get it to stay on for more than a couple seconds to retry the flashing?
Any help is appreciated.

atomkrieg said:
I was trying to fix my girlfriends nexus 5 that was doing the restart loop after an update. Everything seemed to go fine. Unlocked the bootloader, etc. Flashed the newest rom (6.0.1 (MMB29S) ce1d670f61061c3902f3997510ea55d7 6bfcdfa4f4840898e5d76fa044f5e6a0f71343bf) and then something obviously went wrong (not quite sure, dont think i touched anything) and it's now stuck in a different kind of loop that only loops while it's plugged in. Ive uploaded a video to youtube, but since im a new user i cant actually link it properly yet. Hopefully this wont annoy any mods, I promise it's not spam. youtube . be / yNSoiTPnGZw
Is there any way to get it to stay on for more than a couple seconds to retry the flashing?
Any help is appreciated.
Click to expand...
Click to collapse
What was your flashing procedure, did u is a toolkit or do it manually, can u get it into bootloader or recovery? What files did u is for update and where did u get them?
Sent from my XT1526 using Tapatalk

soupysoup said:
What was your flashing procedure, did u is a toolkit or do it manually, can u get it into bootloader or recovery? What files did u is for update and where did u get them?
Sent from my XT1526 using Tapatalk
Click to expand...
Click to collapse
First i followed the guide here on xda to unlock the bootloader(guide-nexus-5-how-to-unlock-bootloader-t2507905), installed twrp, which went fine. Then i realized that i couldnt (or didnt realize how to via command line) to copy the stock rom and install it via twrp, so then i followed this guide here on xda (tutorial-how-to-flash-factory-image-t2513701) with the factory img (6.01 hammerhead), got to this point in the guide: ★After everything finished, select "Recovery" using the volume buttons. then it stalled out,turned off and now just cycles on and offf through the google logo with the lock picture or if i hold down the volume button it will go into the bootloader briefly then restart, rinse repeat.

atomkrieg said:
First i followed the guide here on xda to unlock the bootloader(guide-nexus-5-how-to-unlock-bootloader-t2507905), installed twrp, which went fine. Then i realized that i couldnt (or didnt realize how to via command line) to copy the stock rom and install it via twrp, so then i followed this guide here on xda (tutorial-how-to-flash-factory-image-t2513701) with the factory img (6.01 hammerhead), got to this point in the guide: ★After everything finished, select "Recovery" using the volume buttons. then it stalled out,turned off and now just cycles on and offf through the google logo with the lock picture or if i hold down the volume button it will go into the bootloader briefly then restart, rinse repeat.
Click to expand...
Click to collapse
Have u tried messing with the power button, there are a lot of issues on the nexus 5 with the power button causing loops, simply from getting stuck, try playing with the power button a little and see of that helps, it might just need to be replaced
Wait, did u flash the factory img with twrp, or did u flash it using fastboot?
Sent from my XT1526 using Tapatalk

soupysoup said:
Have u tried messing with the power button, there are a lot of issues on the nexus 5 with the power button causing loops, simply from getting stuck, try playing with the power button a little and see of that helps, it might just need to be replaced
Wait, did u flash the factory img with twrp, or did u flash it using fastboot?
Sent from my XT1526 using Tapatalk
Click to expand...
Click to collapse
in the end fastboot, since i coulndt see how i could copy the img over to install via twrp
im pretty sure the button is fine, since it was cycling from the ota update install, then was working fine unlocking the bootloader, but after the flash, it crapped the bed.

Different problem
I had a problem where the google logo keeps on booting up with a slight vibration.This started to happen when my was dropped.I initially thought that was a software issue and thought of installing new ROM's but eventually my device was not detected :crying:
So i took it to repair shop near my house and they said it would cost 2500
I did some google research and found the reason was due to the power button being stucked during the fall.I got that repaired and my device is good to go

siddhu007 said:
I had a problem where the google logo keeps on booting up with a slight vibration.This started to happen when my was dropped.I initially thought that was a software issue and thought of installing new ROM's but eventually my device was not detected :crying:
So i took it to repair shop near my house and they said it would cost 2500
I did some google research and found the reason was due to the power button being stucked during the fall.I got that repaired and my device is good to go
Click to expand...
Click to collapse
ok, took it into a shop, got the power button fixed. It must have been on the way out because literally one minute it worked and the second it didnt. now i think ive got it narrowed down. it's saying it's unable to mount /persist. ive tried the various fixes:
e2fsck/dev/block/platform/msm_sdcc.1/by-name/persist
and
make_ext4fs/dev/block/platform/msm_sdcc.1/by-name/persist
but all i get is a not found error. not sure what to do from here on.

success!! i ended up stumbling on a bit how to restore the persist partition i didnt try. got a custom rom installs and everything works. thanks to everyone who tried to help!!

stuck in bootloop while flashing cataclysm rom
i tried to flash cataclysm rom in my n5..i unlock bootloader, flash custom recovery using TWRP and flash cataclysm rom following the instructions in this thread http://forum.xda-developers.com/goo...s-5-how-to-unlock-bootloader-t2507905...after that it was stuck in bootloop...i tried to open recovery but it wont open anymore it will only go back to loop....how can open the recovery? is it safe to flash CWM recovery?..tnx in advance..

When it was stuck in the loop, I had to hold vol up and down with the power button (wait a few secs until it was completely off) then reboot holding down + power till it opened the bootloader. if that doesnt work, try reflashing the bootloader via fastboot. I only found out i couldnt mount the persist partition by looking at the terminal window in twrp after trying to install a rom which kept it in the boot loop. I then used the cmd: make_ext4fs /dev/block/platform/msm_sdcc.1/by-name/persist to rebuild it.

jpau11 said:
i tried to flash cataclysm rom in my n5..i unlock bootloader, flash custom recovery using TWRP and flash cataclysm rom following the instructions in this thread http://forum.xda-developers.com/goo...s-5-how-to-unlock-bootloader-t2507905...after that it was stuck in bootloop...i tried to open recovery but it wont open anymore it will only go back to loop....how can open the recovery? is it safe to flash CWM recovery?..tnx in advance..
Click to expand...
Click to collapse
After flashing TWRP, use the volume and power button to select recovery. Once in TWRP, wipe cache, data, reboot.

audit13 said:
After flashing TWRP, use the volume and power button to select recovery. Once in TWRP, wipe cache, data, reboot.
Click to expand...
Click to collapse
problems solved!!i flashed TWRP again and it it already to the recovery so i reflashed the cataclysm rom and it worked...my n5 is now working..tnx guys!

jpau11 said:
problems solved!!i flashed TWRP again and it it already to the recovery so i reflashed the cataclysm rom and it worked...my n5 is now working..tnx guys!
Click to expand...
Click to collapse
Great to hear it. Congratulations:good:

Can't boot past Google logo white screen after flash-all.bat full restore

Hi all, been running a fairly stable non-Verizon (but on Verizon network) Pixel for several years now. Yesterday when using Google Maps my phone's screen blacked out and it immediately put itself into a boot loop. My bootloader is unlocked so it starts with the warning screen then the white background Google logo screen, then after ~25 seconds the screen blacks out again and it repeats.
I can hold down the power button to force the power off faster so I don't think it's a stuck power button. I have updated my SDK/platform-tools and have a fresh August factory image downloaded and re-downloaded, and all the images extracted to the correct folder and the flash-all.bat factory reset seems to run normally in cmd and on the phone (reboots happen at regular times, etc.) but as soon as it gets to the white background Google screen, cut to black after ~25secs.
I cannot reliably boot into twrp-3.2.3-1-sailfish.img, but it does work sometimes. ADB sideloading any ZIP does not seem to work (freezes TWRP and back into boot cycle). I can sometimes boot into stock recovery and have tried "Wipe data/factory reset" which appears to complete successfully but still does not get me past the white screen logo.
Anything else I can try? Does it seem broken to anyone else? I use custom roms, recently been on Bootleggers with no complaints, but I don't think it's related to that. Something seems irreparably corrupted or something, it was so weird that it just did it to itself mid-navigation and there's nothing I can do to restore it to any state--I even tried flashing last month's factory image, tried changing active slots, anything I could think of. Thanks for your time!

Jesse402 said:
Hi all, been running a fairly stable non-Verizon (but on Verizon network) Pixel for several years now. Yesterday when using Google Maps my phone's screen blacked out and it immediately put itself into a boot loop. My bootloader is unlocked so it starts with the warning screen then the white background Google logo screen, then after ~25 seconds the screen blacks out again and it repeats.
I can hold down the power button to force the power off faster so I don't think it's a stuck power button. I have updated my SDK/platform-tools and have a fresh August factory image downloaded and re-downloaded, and all the images extracted to the correct folder and the flash-all.bat factory reset seems to run normally in cmd and on the phone (reboots happen at regular times, etc.) but as soon as it gets to the white background Google screen, cut to black after ~25secs.
I cannot reliably boot into twrp-3.2.3-1-sailfish.img, but it does work sometimes. ADB sideloading any ZIP does not seem to work (freezes TWRP and back into boot cycle). I can sometimes boot into stock recovery and have tried "Wipe data/factory reset" which appears to complete successfully but still does not get me past the white screen logo.
Anything else I can try? Does it seem broken to anyone else? I use custom roms, recently been on Bootleggers with no complaints, but I don't think it's related to that. Something seems irreparably corrupted or something, it was so weird that it just did it to itself mid-navigation and there's nothing I can do to restore it to any state--I even tried flashing last month's factory image, tried changing active slots, anything I could think of. Thanks for your time!
Click to expand...
Click to collapse
I had this once. This worked for me; clean adb flash latest factory image and nothing else, let it boot to bootlogo, use button combo to get in stock recovery, in there wipe cache/ dalvik cache and reboot. Leave it alone for a few minutes.
Hope this will help, good luck.
Cheers
Sent from my Google Pixel using XDA Labs

Sgace said:
I had this once. This worked for me; clean adb flash latest factory image and nothing else, let it boot to bootlogo, use button combo to get in stock recovery, in there wipe cache/ dalvik cache and reboot. Leave it alone for a few minutes.
Click to expand...
Click to collapse
Hey, thanks for your time. By adb flash you mean the regular flash-all.bat or using fastboot flash commands to flash the imgs manually, right? Or is there some difference between fastboot and adb flashes? Then, my stock recovery does not have a wipe cache / dalvik option, only a wipe data / factory reset option. Is this hiding somewhere? Should I try that in TWRP instead of stock if I can get booted to an img of that? And then you're saying after the fastboot image install, immediately boot into recovery before letting it boot at all?

Jesse402 said:
Hey, thanks for your time. By adb flash you mean the regular flash-all.bat or using fastboot flash commands to flash the imgs manually, right? Or is there some difference between fastboot and adb flashes? Then, my stock recovery does not have a wipe cache / dalvik option, only a wipe data / factory reset option. Is this hiding somewhere? Should I try that in TWRP instead of stock if I can get booted to an img of that? And then you're saying after the fastboot image install, immediately boot into recovery before letting it boot at all?
Click to expand...
Click to collapse
Hi,
Sorry had to be more clear; yes, flash with the flash all.bat.
After the flash it will reboot, let it boot to google logo and try to get in stock recovery.
In stock recovery, if there is no clear cache/dalvik then yes, do wipe data/factory reset.
After the wipe let it boot for a while.
Don't flash anything else then the factory image until it booted up correctly and you set it up.
Good luck. If anything, just ask.
Cheers
Sent from my Google Pixel using XDA Labs

Sgace said:
Sorry had to be more clear; yes, flash with the flash all.bat.
After the flash it will reboot, let it boot to google logo and try to get in stock recovery.
In stock recovery, if there is no clear cache/dalvik then yes, do wipe data/factory reset.
After the wipe let it boot for a while.
Don't flash anything else then the factory image until it booted up correctly and you set it up.
Good luck. If anything, just ask.
Click to expand...
Click to collapse
Appreciate it. Here's the order of operations:
- flash-all.bat
- After final reboot of flash-all.bat, hold volume down to get into bootloader immediately, then to recovery from there (no other way to boot into recovery mode faster AFAIK)
Unfortunately this is as far as I get. Choosing recovery after going to bootloader right after flash only takes me to the white screen for 25 seconds, then loop. At this point I can't get into recovery at all from bootloader, though it's been sometimes possible in the past. I think it's died, I've actually already ordered a new phone but will keep trying things with this one till that one arrives. I'll update if I'm able to get to recovery anymore, but like I noted in my OP I have tried the recovery factory reset already to no avail. It's too bad that I can't get it to work reliably enough to try your exact order of steps, but probably just a sign of larger problems.
Edit: Finally got to recovery and did the wipe again, and then it started booting to ONLY recovery after that! So the bootloop kinda changed but not so much for the better.

Jesse402 said:
Appreciate it. Here's the order of operations:
- flash-all.bat
- After final reboot of flash-all.bat, hold volume down to get into bootloader immediately, then to recovery from there (no other way to boot into recovery mode faster AFAIK)
Unfortunately this is as far as I get. Choosing recovery after going to bootloader right after flash only takes me to the white screen for 25 seconds, then loop. At this point I can't get into recovery at all from bootloader, though it's been sometimes possible in the past. I think it's died, I've actually already ordered a new phone but will keep trying things with this one till that one arrives. I'll update if I'm able to get to recovery anymore, but like I noted in my OP I have tried the recovery factory reset already to no avail. It's too bad that I can't get it to work reliably enough to try your exact order of steps, but probably just a sign of larger problems.
Edit: Finally got to recovery and did the wipe again, and then it started booting to ONLY recovery after that! So the bootloop kinda changed but not so much for the better.
Click to expand...
Click to collapse
That's a real bummer m8!. Starting to think there's a hardware problem of some kind.
Wish I could help you out a little more, but I can't from a distance.
Hope you're new phone does you well. What did you order? Another Pixel?
Cheers
Sent from my Google Pixel using XDA Labs

Sgace said:
That's a real bummer m8!. Starting to think there's a hardware problem of some kind.
Wish I could help you out a little more, but I can't from a distance.
Hope you're new phone does you well. What did you order? Another Pixel?
Cheers
Click to expand...
Click to collapse
Thanks again for the attempts to help, I got a couple tips from posting on reddit too that didn't get me anywhere either--I've all but called it on the Pixel! But appreciate your time.
I went with the OnePlus 7 Pro and am looking forward to it. I'm disappointed the Pixel didn't make it to a full 3 years of use for me, hoping I can get more out of the next one! Cheers

Jesse402 said:
Thanks again for the attempts to help, I got a couple tips from posting on reddit too that didn't get me anywhere either--I've all but called it on the Pixel! But appreciate your time.
I went with the OnePlus 7 Pro and am looking forward to it. I'm disappointed the Pixel didn't make it to a full 3 years of use for me, hoping I can get more out of the next one! Cheers
Click to expand...
Click to collapse
You're welcome. If I can, I will always try to help.
Hope you will enjoy your OP 7 pro, think it's a nice phone.
It's a shame it did'nt bring you 3 years of pleasure, hope mine will, but will see.
Cheers
Sent from my Google Pixel using XDA Labs