Stock recovery corrupted. Red triangle. Android broken - Shield Tablet Q&A, Help & Troubleshooting

Hello guys. I think I have a very particular problem since Noone on the forum has mentioned/solved this problem before. Basically I have my old tablet replaced with b01 battery. It came with lollipop os 2.2.2 (I think) I rooted it like I did before with flammable y01 with twrp so no problem on that hand.
Now I'm selling it and I need to get it back to the stock os with stock recovery. But as is seems this turns into something impossible :
Every time I try to flash stock image the red triangle appears when I try to boot into recovery no matter what I do :tried to flash Via fastboot many times, tried different fastboot drivers (one from Nvidia, another one from Google) tried to mess with flashing sequence - staging - reboot - boot.img - recovery.img - reboot - system. Img, userdata.img - dtb - oem lock - reboot and still the red triangle with broken Android. Tried flashing it from 2 different notebooks, with clean win 7 and clean installation of Nvidia drivers. Still no luck, as soon as I finish flashing staging and booting into recovery with volume keys I always get the red triangle. However when I try to install a twrp it boots into recovery instantly. I even tried erasing all partitions before flashing :fastboot erase recovery, erase boot system ecc without result, tried even to flash staging, boot and recovery partitions from older os versions keeping the system and userdata from 2.2.2 and no luck.. Can please some one explain why the original recovery doesn't want to stick?? The cwm recovery like twrp work like charm whenever I try to flash them... So it's not up to hardware.. Please help me guys

Maybe have to relock the bootloader. Why can't you sell it with a custom recovery and rom?

gqukyo said:
Maybe have to relock the bootloader.
Click to expand...
Click to collapse
Why would you ever suggest that?
sighline said:
Can please some one explain why the original recovery doesn't want to stick?? The cwm recovery like twrp work like charm whenever I try to flash them... So it's not up to hardware.. Please help me guys
Click to expand...
Click to collapse
Stock recovery doesn't really have a user interface like TWRP or CWM so I wouldn't worry about the red triangle. Is there any reason you can't sell it with the custom recovery?

You can easily lock and unlock the bootloader so what's the issue with trying that? And if you want it to be 100% retail stock, the bootloader would be locked.
You can also try to re download the stock restore files again and try again. I don't recall the stock recovery giving you any options anyways so that screen you're getting should be fine.

Related

[Q] Red Triangle, Dead Android

After months of flashing everything in sight on my NS4g, the device appears to have rolled over and died! It started a few days ago, when it rebooted and asked me for a password to decrypt from storage (no password has ever been set). I couldn't get past that screen, so I decided to boot into recovery (TWRP), reinstall ROM (CM10) and gapps and restore data from backup.
No go. It just kept rebooting into recovery. But I was able to connect the phone to the PC and copy files from the phone but could not copy or delete files on the phone from the PC.
I used fastboot, Odin, and one-click-stock to wipe the device and install factory images, but the phone would boot no further than the red triangle-dead android.
Is my phone dead? I searched the forums and couldn't find any solutions other than to do what I have already done.
ttakacs said:
After months of flashing everything in sight on my NS4g, the device appears to have rolled over and died! It started a few days ago, when it rebooted and asked me for a password to decrypt from storage (no password has ever been set). I couldn't get past that screen, so I decided to boot into recovery (TWRP), reinstall ROM (CM10) and gapps and restore data from backup.
No go. It just kept rebooting into recovery. But I was able to connect the phone to the PC and copy files from the phone but could not copy or delete files on the phone from the PC.
I used fastboot, Odin, and one-click-stock to wipe the device and install factory images, but the phone would boot no further than the red triangle-dead android.
Is my phone dead? I searched the forums and couldn't find any solutions other than to do what I have already done.
Click to expand...
Click to collapse
When you flashed to stock you erased your recovery.. Reconnect to your computer and push a recovery onto your phone and you're good to go..
Unfortunately, when I flashed TWRP and boot.img to the phone using fastboot and attempted to boot into recovery, bootloader reports "No Boot or Recovery Img."
ttakacs said:
Unfortunately, when I flashed TWRP and boot.img to the phone using fastboot and attempted to boot into recovery, bootloader reports "No Boot or Recovery Img."
Click to expand...
Click to collapse
Try the Nexus tool kit and from the bootloader (power and vol. up) select flash to stock (bricked) then in advanced boot temporary recovery to flash the recovery of your choice.. or push a boot image.
Setting.Out said:
Try the Nexus tool kit and from the bootloader (power and vol. up) select flash to stock (bricked) then in advanced boot temporary recovery to flash the recovery of your choice.. or push a boot image.
Click to expand...
Click to collapse
Wish I had better news but ... using the Nexus tool kit I was able to boot into TWRP but when trying to flash CM10 and gapps for this phone the flash failed; likewise, I could not flash CM10 and gapps by pushing the files from the PC to the phone. I first did flash to stock (bricked) but that brought me back to the red triangle, dead android.
I am beginning to suspect that the phone internal sdcard is corrupted ... is there a way to test for that?
ttakacs said:
Wish I had better news but ... using the Nexus tool kit I was able to boot into TWRP but when trying to flash CM10 and gapps for this phone the flash failed; likewise, I could not flash CM10 and gapps by pushing the files from the PC to the phone. I first did flash to stock (bricked) but that brought me back to the red triangle, dead android.
I am beginning to suspect that the phone internal sdcard is corrupted ... is there a way to test for that?
Click to expand...
Click to collapse
When you got it to flash to stock did it boot up fully?
Remember that flashing to stock removes custom recoveries and you will need to flash one
Sent from my Nexus S using xda premium
Setting.Out said:
When you got it to flash to stock did it boot up fully?
Remember that flashing to stock removes custom recoveries and you will need to flash one
Sent from my Nexus S using xda premium
Click to expand...
Click to collapse
No, the phone never did boot up fully. It got to the Google screen with the unlock icon and then to the red triangle, dead Android.
ttakacs said:
No, the phone never did boot up fully. It got to the Google screen with the unlock icon and then to the red triangle, dead Android.
Click to expand...
Click to collapse
This happened when you tried stock or custom?..
Did it fully boot on stock image?..
The dead android usually shows up when you attempt to boot into recovery and you don't have one... If you try to boot and you loop back to the dead android it usually means you don't have a rom...
Try again to flash to stock, use the toolkit to boot a temporary recovery and flash a custom recovery.. Then make sure you are flashing the correct rom and correct gapps for that rom and for your phone.
Setting.Out said:
This happened when you tried stock or custom?..
Did it fully boot on stock image?..
The dead android usually shows up when you attempt to boot into recovery and you don't have one... If you try to boot and you loop back to the dead android it usually means you don't have a rom...
Try again to flash to stock, use the toolkit to boot a temporary recovery and flash a custom recovery.. Then make sure you are flashing the correct rom and correct gapps for that rom and for your phone.
Click to expand...
Click to collapse
I know have a recovery because the tool kit booted into TWRP; furthermore, the tool kit installed a TWRP 2.3 image (prior to installing the tool kit I was on 2.5 so the tool kit did something). From there, I tried to flash CM10 and gapps in the sdcard/download folder, but that failed, with TWRP returning message similar to "error opening ZIP".
I have used Odin to flash the stock image and it did not fully boot, ending at the dead android. Same results for flashing the stock image using fastboot with the phone connected to the PC. Same results with using the Nexus tool kit to flash a stock image (first JB and then, when that didn't boot, ICS). And, after the toolkit booted into temporary recovery (TWRP), I tried to flash (in this order) CM10 plus gapps, JB stock, and ICS, each time with the same results (no full boot, dead android).
I am with you when you say that the dead android means there is no rom, because my efforts to flash any rom, whether stock or custom, don't do anything. To all appearance, the phone contains a bootloader and a recovery and nothing else.
Thanks for your persistence ... any ideas for something else to try?
ttakacs said:
I know have a recovery because the tool kit booted into TWRP; furthermore, the tool kit installed a TWRP 2.3 image (prior to installing the tool kit I was on 2.5 so the tool kit did something). From there, I tried to flash CM10 and gapps in the sdcard/download folder, but that failed, with TWRP returning message similar to "error opening ZIP".
I have used Odin to flash the stock image and it did not fully boot, ending at the dead android. Same results for flashing the stock image using fastboot with the phone connected to the PC. Same results with using the Nexus tool kit to flash a stock image (first JB and then, when that didn't boot, ICS). And, after the toolkit booted into temporary recovery (TWRP), I tried to flash (in this order) CM10 plus gapps, JB stock, and ICS, each time with the same results (no full boot, dead android).
I am with you when you say that the dead android means there is no rom, because my efforts to flash any rom, whether stock or custom, don't do anything. To all appearance, the phone contains a bootloader and a recovery and nothing else.
Thanks for your persistence ... any ideas for something else to try?
Click to expand...
Click to collapse
I'm at a loss.. Try again, maybe there's something missing.. And flash only one at a time and see if it worked (just ROM then reboot) then wipe d+c and flash gapps reboot then wipe flash... Ect... Ect...
Sent from my Nexus S using xda premium
Setting.Out said:
I'm at a loss.. Try again, maybe there's something missing.. And flash only one at a time and see if it worked (just ROM then reboot) then wipe d+c and flash gapps reboot then wipe flash... Ect... Ect...
Click to expand...
Click to collapse
I am too. Every method known to me (Odin, fastboot, adb) to flash a ROM, whether custom or stock, has failed to boot. Thanks for hanging with me on this; if you can think of solution I'll be glad to have it. Or if I solve it, I'll post here.

Stuck in Fastboot

Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
also it says invalid "boot image header!" in red letters
http://forum.xda-developers.com/showthread.php?t=2542219
Install full factory image with fastboot.
P.Kosunen said:
http://forum.xda-developers.com/showthread.php?t=2542219
Install full factory image with fastboot.
Click to expand...
Click to collapse
Alright thankyou!
I got everything to work again but I still can't flash roms. They just bootloop :S
It could be too big recovery install with fastboot causes problem, every recovery cwm/twrp i tried to install with fastboot fails.
http://forum.xda-developers.com/showpost.php?p=49559872&postcount=234
Twrp_MotoG_signed_010814_163615.zip
Download vocoderisms TWRP build, extract "recovery.img" from it.
After you have kitkat installed and working:
Option 1, use TWRP without install:
Boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img) and install rom from there.
Option 2, install TWRP (have not tested):
Upload twrp zip to phone (adb push Twrp_MotoG_signed_010814_163615.zip /sdcard/), boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img), install Twrp_MotoG_signed_010814_163615.zip.
Misterowl said:
Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
Click to expand...
Click to collapse
https://docs.google.com/file/d/0B2LP8tI1Xwu4MGtPTlpVcVQxN0k/preview this cwm worked for me
You do know flashing stock again removes root, so it has to be rerooted again ?
aradalien said:
You do know flashing stock again removes root, so it has to be rerooted again ?
Click to expand...
Click to collapse
Yes I am very aware and followed through with root with that outcome.
kieranc88 said:
https://docs.google.com/file/d/0B2LP8tI1Xwu4MGtPTlpVcVQxN0k/preview this cwm worked for me
Click to expand...
Click to collapse
CWM doesn't work it. It boots up (Im used cyanogenmod) the cyanogenmod boot animation but just stays there.
P.Kosunen said:
It could be too big recovery install with fastboot causes problem, every recovery cwm/twrp i tried to install with fastboot fails.
http://forum.xda-developers.com/showpost.php?p=49559872&postcount=234
Twrp_MotoG_signed_010814_163615.zip
Download vocoderisms TWRP build, extract "recovery.img" from it.
After you have kitkat installed and working:
Option 1, use TWRP without install:
Boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img) and install rom from there.
Option 2, install TWRP (have not tested):
Upload twrp zip to phone (adb push Twrp_MotoG_signed_010814_163615.zip /sdcard/), boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img), install Twrp_MotoG_signed_010814_163615.zip.
Click to expand...
Click to collapse
I've flashed twrp too and came out with the same outcome.
stuck in fastboot
Misterowl said:
Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
Click to expand...
Click to collapse
Exactly i am also facing same problem....
mobile unable to instal firmware...
still i am searching for solution ...
guys plz help me
I thought I am the only one with this problem..After mailing the phone to SC and got it back after 2 months, the phone still looks the same, just like they did nothing to fix it.

No OS, TWRP fails to flash .ZIPs

Hey guys,
I'm having some trouble with flashing a new ROM and now I've soft-bricked my device.
I was trying to flash from CROMi to CM11 so I wiped data, cache, dalvik using TWRP. But when i tried to flash CM11 M9, i would get the "failed" error. I tried flashing other ROMs but same result - "FAILED".
So I thought maybe it was the recovery. I downloaded a CWM recovery (in .zip) and tried to flash it. FAILED!
I tried to restore my device using the "Recover /Downgrade from Jelly Bean to ICS/Clean Factory Restore with custom recovery" method from this post. Since it is basically flashing the stock ROM, naturally it fails.
Now I'm out of ideas. How can I save my tablet?
Thanks for your help guys!
PS: I'm trying to install CMW via fastboot. When I press power + vol down, I get to the screen with "RCK, Android, Data Wipe"; I dont see the USB icon. How do i boot into fastboot?
You are in fastboot mode when you see the three icons. Read the tiny script.
Except for CM11 M9 you did not give us anything to work with.
Give us the version numbers of:
- CROMi-X you were running
- your bootloader
- your recovery
My best guess is you are trying to flash something with an incompatible recovery, but that's just a wild guess.....
And stop flashing willy nilly until you know what's going on. You can brick this tablet if you try hard enough, you know....
berndblb said:
You are in fastboot mode when you see the three icons. Read the tiny script.
Except for CM11 M9 you did not give us anything to work with.
Give us the version numbers of:
- CROMi-X you were running
- your bootloader
- your recovery
My best guess is you are trying to flash something with an incompatible recovery, but that's just a wild guess.....
And stop flashing willy nilly until you know what's going on. You can brick this tablet if you try hard enough, you know....
Click to expand...
Click to collapse
Hey bern,
Thanks for the reply.
My tablet got really slow so I decided to flash CM 11 M9, which is what I use on my Note 3.
I'm running TWRP 2.6.1.0. Not sure which CROMi I was running because I can't boot into Android. I did a data wipe prior to (attempting to) flashing CM11 and now it boots straight to recovery.
I read that TWRP is not compatible with CM11 and that I should flash CWM. But TWRP fails when I try to flash anything so I'm thinking I should attempt ADB sodeload or terminal command and load that way?
Thanks again
Edit: I downloaded CM11 M9 for tf700. I also tried various nightlies in case my original download was corrupt. It ends in failure
berndblb said:
You are in fastboot mode when you see the three icons. Read the tiny script.
Except for CM11 M9 you did not give us anything to work with.
Give us the version numbers of:
- CROMi-X you were running
- your bootloader
- your recovery
My best guess is you are trying to flash something with an incompatible recovery, but that's just a wild guess.....
And stop flashing willy nilly until you know what's going on. You can brick this tablet if you try hard enough, you know....
Click to expand...
Click to collapse
Hi berndblb!
I'm also having this problem and I see that you're quite active in the TF700 forum that you could help me out. I wouldnt say I'm an expert but I have tinkered with phones (mostly Samsung and Nexus devices) in the past so I am familiar with ADB, terminal commands, flashing ROMs, etc.
I'm running TWRP 2.6.1. I was running CROMi-X (not sure which version) and wanted to flash OmniROM. However, TWRP would show "error flashing zip" and "failed" in red. I tried flashing a few other zips including TWRP 2.7.1.1 and CWM (I readTWRP is not compatible with some ROMs) and I would still get the error and "failed".
So now, I can't boot into the OS to flash a recovery via fastboot or via CWM Rom Manager, nor can I flash anything in TWRP. I also attempted to flash TWRP 2.7.1.1 via terminal command
HTML:
dd if=/sdcard/twrp.blob of=/dev/block/mmcblk0p4[HTML]. I loads but it doesnt install when i restart my device.
What do you think I should try next? I'm getting pretty desperate at this point. Is my device bricked-bricked or can i salvage it?
Thanks!
oh.herro said:
Hi berndblb!
I'm also having this problem and I see that you're quite active in the TF700 forum that you could help me out. I wouldnt say I'm an expert but I have tinkered with phones (mostly Samsung and Nexus devices) in the past so I am familiar with ADB, terminal commands, flashing ROMs, etc.
I'm running TWRP 2.6.1. I was running CROMi-X (not sure which version) and wanted to flash OmniROM. However, TWRP would show "error flashing zip" and "failed" in red. I tried flashing a few other zips including TWRP 2.7.1.1 and CWM (I readTWRP is not compatible with some ROMs) and I would still get the error and "failed".
So now, I can't boot into the OS to flash a recovery via fastboot or via CWM Rom Manager, nor can I flash anything in TWRP. I also attempted to flash TWRP 2.7.1.1 via terminal command
HTML:
dd if=/sdcard/twrp.blob of=/dev/block/mmcblk0p4[HTML]. I loads but it doesnt install when i restart my device.
What do you think I should try next? I'm getting pretty desperate at this point. Is my device bricked-bricked or can i salvage it?
Thanks![/QUOTE]
Can you enter fastboot at all ?
Thx Josh
Click to expand...
Click to collapse
r3dal3rt said:
Hey bern,
Thanks for the reply.
My tablet got really slow so I decided to flash CM 11 M9, which is what I use on my Note 3.
I'm running TWRP 2.6.1.0. Not sure which CROMi I was running because I can't boot into Android. I did a data wipe prior to (attempting to) flashing CM11 and now it boots straight to recovery.
I read that TWRP is not compatible with CM11 and that I should flash CWM. But TWRP fails when I try to flash anything so I'm thinking I should attempt ADB sodeload or terminal command and load that way?
Thanks again
Edit: I downloaded CM11 M9 for tf700. I also tried various nightlies in case my original download was corrupt. It ends in failure
Click to expand...
Click to collapse
Right now the most important thing is the bootloader version ....
On the bootloader screen upper left there is a bootloader version in really small print ...
This is what we need to know ...
Thx Josh
lj50036 said:
Right now the most important thing is the bootloader version ....
On the bootloader screen upper left there is a bootloader version in really small print ...
This is what we need to know ...
Thx Josh
Click to expand...
Click to collapse
Exactly.
I also would like to know how you performed the wipe you mentioned. The tablet booting only and straight to recovery would indicate that you used 'Wipe Data' from the bootloader???
Also, do not use ROM Manager. It does not work well with the Transformers and can cause a lot of problems.
I have a feeling another user is going to benefit from your excellent unbrick guide, Josh...
Aren't you glad you wrote it?? [emoji12]
lj50036 said:
Can you enter fastboot at all ?
Thx Josh
Click to expand...
Click to collapse
Hi Josh. All i get is the Asus starting screen and "your device is unlocked". Power + vol down doesn't not take me to bootloader.
oh.herro said:
Hi Josh. All i get is the Asus starting screen and "your device is unlocked". Power + vol down doesn't not take me to bootloader.
Click to expand...
Click to collapse
No boot to recovery ?
No bootloader ?
No nvflash blob backups ?
If that is the case then you are not looking good ...
There is no way out of this one ...
We need fastboot or recovery one or the other ..
Sorry for the bad news ....
Thx Josh
oh.herro said:
Hi Josh. All i get is the Asus starting screen and "your device is unlocked". Power + vol down doesn't not take me to bootloader.
Click to expand...
Click to collapse
I agree with lj - not looking good. [emoji17]
Do you have adb access when it boots to the Asus splash screen?

Recovery not starting

Hi,
I wanted to flash the just released lollipop image so I unlocked my phone and updated TWRP from 2.8.0.1 to 2.8.1.0. Then I started Recovery and it was doing some werid thing in a list (was too fast), then rebooted. Recovery came up again (only the image of TWRP) and a restart again. Since then always when I try to go into recovery the starting image will show up, after 2-3 secs it gets black for half a second, then the image will show up again. This is a permanent loop. I flashed back to the old recovery but nnothing, still the same (and this one worked before!).
Hopefully someone of you knows whats wrong.
Thanks,
S3cret
reflash twrp recovery. but to correct you on your mistake before you do it, factory imgs are not flashable via any recovery, you can only flash them via fastboot.
I reflashed recovery several times now. I just thought being on the latest recovery version would be good. I know how to flash the lollipop image via fastboot, but I still need recovery for root.
I locked and unlocked the bootloader again and the same happened. Recovery started, doing some weird things and then the loop again.
Edit: Ok, I fixed it, somehow, I dont rly know how...
TWRP only starts after flashing it on my device. After a reboot, it doesn't work.
vercety974 said:
TWRP only starts after flashing it on my device. After a reboot, it doesn't work.
Click to expand...
Click to collapse
exactly the same here
Yup, dead Android with red warning triangle appears...
My stock recovery is broken after fastbooting the latest 5 image. Shows a red triangle above the laying down android.
How are we supposed to fix this?
Moreover, I've just reflashed the entire rom, and can't access the stock recovery. But the stock recovery seems to work beacause I can to factory reset via the settings menu, backup and restore.... Maybe it is the new security policy from google, to avoid that a thief make a factory reset directly from the recovery ?
So we can't navigate in the stock recovery anymore ?
Highway 55 said:
After fastboot flashing the .img files you need to (WITHOUT REBOOTING) flash custom recovery, TWRP etc... After that from the bootloader reboot into TWRP or whatever. When your in the custom recovery you need to adb push a permissive stock kernel or custom kernel as well as suspersu.zip. Again, without rebooting into the system, flash the kernel first then supersu. Now you can reboot into the system. ?
Click to expand...
Click to collapse
vercety974 said:
Moreover, I've just reflashed the entire rom, and can't access the stock recovery. But the stock recovery seems to work beacause I can to factory reset via the settings menu, backup and restore.... Maybe it is the new security policy from google, to avoid that a thief make a factory reset directly from the recovery ?
So we can't navigate in the stock recovery anymore ?
Click to expand...
Click to collapse
Yes I think it does have to do with the new selinux security stuff. I don't know the specifics. Maybe you want to refer to this thread. http://forum.xda-developers.com/showthread.php?p=56538538 @rootSU knows far more than I do. [emoji6]
Highway 55 said:
Yes I think it does have to do with the new selinux security stuff. I don't know the specifics. Maybe you want to refer to this thread. http://forum.xda-developers.com/showthread.php?p=56538538 @rootSU knows far more than I do. [emoji6]
Click to expand...
Click to collapse
It is exactly as he said in the post you linked.
Flash TWRP recovery and immidiately after run auto root. Then TWRP recovery will survive system boots.

another BRICK in the wall

Hi, I got shield tablet, first version, previous owner brick the device, it stuck on AICP logo and not booting. I can enter in fastboot mode, device is unlocked, but it display bootloader version UNDEF_BUIDL, when I try go to recovery mode I got nvidia logo and black screen. I also try install the stock recovery, do all steps in official instructions, no errors and no changes, It's still bricked on custom rom logo. Any chances to fix it? I'don't know what to do now
flamner said:
Hi, I got shield tablet, first version, previous owner brick the device, it stuck on AICP logo and not booting. I can enter in fastboot mode, device is unlocked, but it display bootloader version UNDEF_BUIDL, when I try go to recovery mode I got nvidia logo and black screen. I also try install the stock recovery, do all steps in official instructions, no errors and no changes, It's still bricked on custom rom logo. Any chances to fix it? I'don't know what to do now
Click to expand...
Click to collapse
You flashed manually via fastboot every file? Even the bootloader?
if you mean "fastboot flash boot boot.img", then yes
Now i can enter in recovery mode, and run TWRP, but i takes veeeery long time to boot :/ In TWRP wipe data failed, there are errors in data and cache partition, I can't format it or repait, It shows that partitions are presents, but they have 0MB size
Perhaps try flashing new firmware? It should be somewhere on Steel01's thread (5.0 bootloader, or nougat bootloader or something like that) for lineageos 14.1, it is a requirement to run los on this device and it fixes some bootloader stuff. Though, you may want to get a second opinion on this one because I am no developer whatsoever.
fpozar said:
Perhaps try flashing new firmware? It should be somewhere on Steel01's thread (5.0 bootloader, or nougat bootloader or something like that) for lineageos 14.1, it is a requirement to run los on this device and it fixes some bootloader stuff. Though, you may want to get a second opinion on this one because I am no developer whatsoever.
Click to expand...
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I can't flash rom in TWRP, when I try I get status failed :/ I don't know what to d next :/
Problem is in mounting cache and data partition in internal memory. I think l tried all ways to do that, last one was in adb shell, mount /system ok, mount /data and mount /cache not ok
my conclusions:
I can't flash anything on this tablet, even recovery, I figure it out because I try to flash TWRP version 3.2.1 it works only when i run boot TWRP in fastboot on computer, when I do it in device(run in fastboot mode, select recovery) i got after several minutes TWRP version 2... So, it means that internal memory is broken?
Mine does that too flamner, not sure what to do. I will try a bootloader flash perhaps

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