Dead phone - Android Q&A, Help & Troubleshooting

Hello guys,
I'm not a noob when we speak about flashing ROMs and unlocking bootloaders. I've been doing that for some years. Yesterday I flashed the new stock ROM for LG G4 - v29a, android 7.0. Everything went fine. Later this day, I've seen a post claiming that it was possible to relock your bootloader with this specific ROM using the fastboot oem lock. And it worked indeed. The problem now is that when I turn on the phone the following message shows up on RED: "Your device is corrupt. It cannot be trusted and may not work properly".
So, here's the problem:
1 - Can't access recovery;
2- Can't access download mode;
3 - Can't boot normally;
4 - Can't re-unlock since (i guess) the IMEI is now 0;
5 - Can't flash stock ROM using LGUP;
6- Can't erase any partition via adb since the bootloader is now locked;
So, basically all my ways are locked. Any fix you know and want to share?

Related

[Motorola][XT1068] bootloader locked-failed to validate system image-how to restore?

Hello everyone,
I tried to reset my XT1068 phone from Motorola to the original system from Cyanogen mod. When I got the phone, there was already Cyanogen mod installed, but I didn't bought it myself.
After some tries I finally used a Version 5 (?) Android image. All the steps with mfastboot (v2) succeeded - also locking the bootloader.
However after restarting the phone I got ( and still get ) "failed to validate system image. ( fastboot reason: Fall-through from normal boot mode )"
and also "Device is LOCKED".
Why did this happen? Did I flash the wrong image? How can I find the one which fits to my system and the current bootloader?
And the most important part: How can I restore the system to a working state?
I don't want to unlock it using a code from motorola, because if I need support, it would be probably bad, if I voided the warrenty this way.
Is there (any) another solution without requesting a unlock code from motorola or without unlocking the phone again?
Any advice would be highly appreciated.
Thank you very much.
Kind regards

[help] Softbricked Z5C bootloader/remote state: unlocked

Hi guys, so I seem to have scewed up my phone quite badly. I tried to deodex running the new nougat firmware (with drm-fix and ric-off) by flashing a zip in the nougat firmware thread. Somehow I ended up with not being able to fastboot anymore.
I found out that my bootloader seems to be locked again. Thus I am not able to approach the fastboot mode, but failed to do any flash, as it says [FAILED (remote: not allowed)].
I checked the service menu and found the [Bootloader unlock allowed:no] and [Remote Lock State: Locked] after reflashing the nougat firmware.
So I wanted to unlock the device, how ever I ended up with flashing back to Lollipop and the device boots and then power off after a few seconds of use.
Could this due to "remote lock state: not allowed"?
Try relocking via flashtool?
So. Tried to lock and relock via flashtool. Checked drivers which are working fine.
I was trying to relock and then unlock again using flashtool after updating to .305 Marshmallow firmware . However this does nothing to the bootloader states. The weird thing is that there are no errors showing up in flashtool when unlocking/relocking. I can't even unlock via OEM because when I tick OEM unlock in the developer options this doesn't do any change (Rooting status: Bootloader unlock allowed : No, Remote Lock State: Locked). My DRM keys are gone as well. However I do have a TA Backup but can't restore because after downgrading to lollipop the device shuts down after 30 seconds.
I'm really annoyed because I bought the device with an locked bootloader (without carrier costumizations) and unlocked it via OEM unlock then updated to . Is there any chance to unlock the device again? Restore TA? Any recommendations what I could have done wrong would be helpful.
iArvee said:
Try relocking via flashtool?
Click to expand...
Click to collapse
[solved ] Bootloader is now sucessfully relocked andBootloader states are back to [Bootloader unlock allowed: Yes] and [Remote Lock State: UnLocked].
I need to mention that I bought a phone without carrier lock with [Bootloader unlock allowed: Yes].
So, for anyone who is interested or might face the issue in the future, here's what I did.
You will need your backed up TA-Partition-Image to restore via iovyroot:
1. Downgrade to Lollipop (32.0.A.6.200 / R2B (STOREFRONT GENERIC)) using Flashtool .
->Therfore select/tick everything in the wipe section when selecting the Lollipop-tft
2. Unmount your SIM, reboot the device
3. Skip everything on the welcome/configuration screen as fast as you can to get beyond the Android configuration screen
(skip wif config, Google-Account setup, untick myXperia services! etc.)
The phone might power off only after a few seconds because of the downgrade. So be fast!!!
4. Once you end up on the home screen, unlock developer options, and activate ADB debugging, grant ADB access (check via cmd: fastboot devices)
again: be fast! --> Don't worry if the phone shuts down again. Just reboot if you were not fast enough.
5. Download iovy.root ( iovy.root. Place TA-backup.img in the iovyroot-folder.
Then I modified "tarestore. bat" to save some time regarding the shutdowns. I used notepad++:
...
set response=
set /p response=Type "y" if you want to restore this file:
if "%response%" == "y" (
echo Starting restore
echo.
adb push "root/iovyroot" "/data/local/tmp/iovyroot" > NUL 2> NUL
adb push "root/restore.sh" "/data/local/tmp/restore.sh" > NUL 2> NUL
...
5. Run CMD as admin. CD to Iovyroot folder.
Restore using tarestore.bat (tarestore.bat TA-2016-xxx.img) as soon as your device boots up to home screen and seems to be connected as ADB device.
( I checked this by running the windows device manager simultaniously)
Wait to end the process.
-->When the restore was sucessfull, the device shouldn't shutdown again.
6. Reboot. Your bootloader is now locked again (but able to unlock via OEM unlock). DRM keys/functionality is restored.
I have the same problem (after i had nougat working incl drm fix and root, also the deodex, tried flashing lower ftf files too when i got this problem, noticed the rebooting, which it does not do at 305 kernel or higher..
I would have hope in your solution, if I could find my ta backups (i have from some other phones, this one, may have been on a crashed laptop, already searched through old hdds)
Could this be because of fastboot flash recovery twrp.img (cause that is something i never done before on the z5c.)
If anyone has a solution other than restoring the ta partition, i would like to know. Because i am very uncertain that i can find those files again...
Same case here z5c unlocked since +/- 1 year and I don't have any TAbackup too
I will try to downgrade to .200 But with bootloader unlock allowed : no ... I don't have much hope
edit : no chance, I tried .200 but without tabackup, I can't do nothing
When I faced this problem I noticed it happened because I wiped TA options with Flashtool. Never do that if you don't want to lose TA partition and all other things connected to it. I could fix it only by flashing TA backup even though I hadn't the timing issue zegovernator had for flashing back TA.
I actually wonder why Flashtool allows to wipe these critical partitions/options
ric69 said:
Same case here z5c unlocked since +/- 1 year and I don't have any TAbackup too
I will try to downgrade to .200 But with bootloader unlock allowed : no ... I don't have much hope
edit : no chance, I tried .200 but without tabackup, I can't do nothing
Click to expand...
Click to collapse
I'm sorry for you. I would recommend updating back to MM since LP gives you immediate shut downs when recognising that your TA is lost/wiped. It's sometime a pain in the ass that stuff gets posted before testing. Nonetheless, you could still try to send in your device back to Sony Costumer Service if you are under warranty (after flashing .200, say that it is "broken" and keeps crashing). However, I would not trust on them sending you a new device.
jutphaas said:
I have the same problem (after i had nougat working incl drm fix and root, also the deodex, tried flashing lower ftf files too when i got this problem, noticed the rebooting, which it does not do at 305 kernel or higher..
I would have hope in your solution, if I could find my ta backups (i have from some other phones, this one, may have been on a crashed laptop, already searched through old hdds)
Could this be because of fastboot flash recovery twrp.img (cause that is something i never done before on the z5c.)
If anyone has a solution other than restoring the ta partition, i would like to know. Because i am very uncertain that i can find those files again...
Click to expand...
Click to collapse
I sorry to say that, but if you lost your TA-backup or didn't even back it up before unlocking the bootloader there is no hope at the moment. You simply can't fastboot because of the Remote State: Locked. It keeps you from accessing the bootloader.
I found my iovyroot TA-backup.img file, I did have a .200 storefront ftf and tried it on that one, which was very anoying as it wants to start a demo , i found an other .200 ftf online which I tried, and the iovyroot seems to work, at that time no reboot, in service menu, the drm keys now seem fine there, Bootloader unlock allowed : No, Remote Lock State: unLocked , fastboot boot or oem unlock still seemed not working well i think that is what it said, (flashtool unlock always seems to, i did try) now i flash a new ftf and try my luck there with the unlock status.
flashing ftf 5.11 flashtool says
03/005/2017 05:05:49 - INFO - Loader : S1_Root_f936 - Version : MSM8994_50 / Boot version : S1_Boot_MSM8994_LA1.2_119 / Bootloader status : ROOTED
And now in 5.11 it also says bootloader unlocked : Yes Lost my drm again
So I am back in flashing and rooting (with drmfix etc) Android 7 again Thanks for sharing this solution!!
So you confirm that TA backup is the only solution to solve the "unlock allowed" bad state, don't you?
This is good for other people because when I faced the problem I was really scared to have messed up my phone!!!
i want to confirm the solution here
i had the same problem and the only way back of it was to downgrade to Lollipop and restore the TA-Partition
i dont think there is a solution if you did not backup your TA and have an image of it.
Yes, the TA restore is the only known solution, and I am glad Zegovernator shared his solution here

Moto Z bricked OEM Locked

Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
I'm with same problem here!
Suckmymfdick17 said:
Hello friends of XDA, I have a big problem between hands, I have a MOTO Z and I had it in android 7.0 since last year the update to andorid 7.1.1 did not arrive and I felt that with android 7 the battery was consumed very quickly, so I tried to find the update to flash it and just about 3 days ago I found it, I proceeded to download it and flash it in fastboot and adb.
The thing is that a few months ago, browsing through my phone (I had already rotated it, and unlocked the bottloader, I decided to re-block the bootloader, and remove the root, which never worked at 100) I got into the developer options, and I saw an option that until then I didn't know about its "OEM Unlock"function, as it was turned on and deactivated because I thought it didn't work.
Returning to the update flashing I proceeded as usual, with the commands, I proceed to restart the device and show the image of the boot of motrola but then it shows me a message in red letters.
"Startup Failed"
"failed to pass validation, backup to fastboot.
I thought it was a compatibility problem with the downloaded version of 7.1.1 so again I decided to flash the stock rom 7.0 but when I finished and restart the same message appeared.
I started to investigate and it seems that the OEM blockade is responsible for not being able to install any Stock Rom, or anything, and now I have a nice brick with Moto mods and I can't use it.
I wanted to unlock OEM in fastboot but nothing. sends message from "ALLOW OEM UNLOCK IN SETTINGS"
There is way to unlock the OEM from pc or fastboot without needing to be unlocked from the android settings, as in my case it is impossible for me,
I'd be very grateful for your help friends, I know it's a bit tedious to read but it's the only phone I have and I feel weird without it on the street.:bueno::bueno::llorando:
Click to expand...
Click to collapse
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
knjigo said:
Try to boot in Fastboot flash twrp and flash ressurection remix rom. It's great rom. Forget about locking. I had the same problem like you as I was trying to flash stock ROM and lock bootloader.
I gave up on this.
Click to expand...
Click to collapse
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Suckmymfdick17 said:
Well, when the root didn't work properly, I flashed the phone again and blocked the bootloader. Will I still be able to install TWPR or should I lose my phone?
Click to expand...
Click to collapse
What do you mean with "I blocked my bootloader"?
Twrp is easy to flash. Root is integrated in ressurection remix rom. And this rom is great. Just try to flash twrp in Fastboot and than ressurection remix with twrp.
Can you boot in Fastboot?
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
tjgibri said:
I'm with same problem here!
Click to expand...
Click to collapse
I solved it, I finally flashed the stock rom to my phone and it works.
Apparently my pc was not flashing the stock rom in adb, and the phone turned off when loading the software. I did it 3 times until I load correctly and start well.
if you have the same problem apparently then OEM Blocking is not responsible. You have to flash the most current rom or the one that you had by default when the brick happened to you, you flash it in a normal way with commands of adb and ready, I would have to come back to life.
download from firmware center MotoZ Griffin the most current rom stock at 7.1.1
echo92 said:
Do you remember what build of 7.1.1 you had on your device before downgrading to 7.0?
If so, I would suggest finding that firmware (the full stock firmware, not OTA updates) or newer if you can, and try to flash that. Since your bootloader is still likely from the 7.1.1 build, a locked bootloader will only permit files matching the same patch level (i.e. from the exact same stock ROM as that bootloader patch) to boot.
If not, then unfortunately there's not a lot we can do. You could wait for a newer firmware to get leaked, but as your device is unable to boot (due to failing the bootloader checks) and you cannot toggle OEM unlocking because you cannot boot, it's a nasty vicious circle that is difficult to get out of. You may have to consider sending your device for service and pay for an expensive motherboard replacement otherwise, since Motorola have a record of your device being unlocked. Your service centre experience may vary.
Only lock a bootloader after ensuring you've flashed all the stock firmware and it is all the same patch level as your bootloader. Hopefully you'll find newer firmware that you can repair with.
Click to expand...
Click to collapse
Thanks for your help friend, I finally flashed it with a recent android 7.1.1 update. Apparently the OEM lockout was not the culprit, but it was an interrupted flash of android 7.1.1 at some point when loading the software to the phone, it would shut down on its own and not complete the installation, which showed me the mentioned message. I didn't realize that and thought it was the OEM blockade.
I finally did it on another pc and it worked. the phone came back to life.
I have one Moto Z2 Force (XT1789-05), bought from coolicool.com, I didn't know device came Unlocked Bootloader, Device rom had problem with many apps, I googled and found one topic in XDA developer to Install Stock Rom, I downloaded and Installed India Rom, it's worked somehow fine, but still had problem, I downloaded Verizon Rom, Android 8, after Installed Android 8 Verizon Rom, Locked device bootloader immediately, now device stuck at Welcome Wizard in Android 8, after select language I got this message: (Please wait, this may take a few minutes) this is proof video (http://ahmn.co/Upload/IMG_0161.MOV), after this issue, device already locked, I can't unlock, because need to go to the Developer Option in Setting, I stucked in Welcome Wizard, there isn't any bypass, So, I start to search in Google, XDA-Forum, Android Central and more, I created many threads, many requests, no one can't help me, I tried to reach google developer support to the tell to me how can I bypass Android 8 Welcome Wizard, there is must be a way, but I can't find it, now I can access to Android Recovery and Bootloader
1. if you help me to FORCE UNLOCK device without need Developer Option in setting my problem will solve
2. If you help me to Bypass Android Welcome Wizard, access setting and enable OEM Unlock
3. If you help me to update the device from Android 8 to Android 9 Verizon ROM via ADB Sideload or Update from SD card in Recovery mode
4. If you have any idea to how can I fix it
Extra Information: I bought Belkin and Uni USB-C to Ethernet Adaptor to help me bypass Android 8 Welcome Wizard, I bought WSKY WIFI Adaptor because device Wifi can't find any network (I found QR setup by tap several times in Language Selection), after this section need to download google device policy apk, my device can't find any Wifi Network and my Ethernet Adaptor can't help me either, So, I just remained with my phone, and I can't do anything,
Please, someone, help me
My Device SKU: XT1789-05

fastboot oem unlock not allowed! even after unlocking it in developer mode

Hello everyone
Recently I've hard reseted my lenovo Phab (pb1-750n) mistakenly before removing my google account and unfortunately I stocked in google FRP lock, I've searched many sites and seen many videos to bypass the FRP with no success.
Finally I found a russian forum that uploaded the Chinese version of device ROM, since the google apps are banned in China therefore updating the ROM from recovery mode succeed (I downloaded ROM and put it in the SD card, then update the ROM from recovery) and device got back alive again. (NO Google NO FRP )
but the second struggle wave slapped my face, (NO google apps NO joy ), for instance I downloaded Gapps and tried to install it by replacing stock recovery with TWRP, so in device, I turned on developer mode by tapping build number many times and turned on USB debugging and oem unlock, see, I turned on damn oem unlock!!! but in the fastboot when I run the
Code:
fastboot oem unlock-go
, the result ends in oem unlock not allowed report and
Code:
fastboot flash recovery TWRP.img
also failed due to the bootloader lock status. BTW international ROM seems to be all in Chines clouds and is not accessible for non Chines people to download them, at least I couldn't do it.
any idea what is wrong in here????? did Chines made ROM to be like that???? any chance to solve the issue???
this happens because you do not unlock the bootloader, just released to unlock
jeangraff30 said:
this happens because you do not unlock the bootloader, just released to unlock
Click to expand...
Click to collapse
well, after updating system to the 6.0.1, problem solved, it seems android 5.1.1 stock ROM for this phablet do not allow to unlock bootloader, I found it in a russian forum, they said so.
anyway thanks for reply.

Bootloader mode broken

This might be the first problem that everyone didn't encountered yet
So recently I unlocked my bootloader in order to flash custom ROM, but recently I reverted back to stock and decided to lock my bootloader in order to get OTA updates.after getting OTA updates I decided to unlock the bootloader again, when I was trying to boot to bootloader mode, it just shows the bootloader icon and boot back to system. I tried to use the in depth test app but it only shows me to request to exit deeptesting and the query status is not submitted.i tried to request to exit deeptesting but it only says no internet connection. I tried almost everything including flashing previous ROM, changing region, etc but none of it works
My device is Realms GT Master Edition (RMX3360) C.09In

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