Help! I can't unlock my bootloader! Did I brick my g710pm? - LG G7 ThinQ Questions & Answers

I followed the steps from this post: https://forum.xda-developers.com/t/...y-g7-thinq-except-g710tm-with-photos.4168771/ to unlock my bootloader, and now it shows a screen that says: "Your device has failed a routine safety check and will not boot, red case." However, if I wait a minute, it goes into Fastboot. The problem at this point is that when I enter fastboot oem unlock, it gives me a message that says "FAILED (remote: Set device unlocked! failed: 00000050)." I've tried to boot my phone into manual fastboot mode by restarting then holding volume keys, but no matter what I try, it just goes back to the "Your device has failed a routine safety check" screen. Yes, I have flashed FRP, but nothing I try seems to work. Thanks a huge amount in advance!

Related

Stuck in password screen of storage decryption, can't flash / install recovery

For some reason, my default android OS (which comes with Xperia, once updated via Sony PC Companion app) is stuck in "Type password to decrypt storage" screen. Which is strange, because I've never put any password on it before. PC Companion wouldn't help in this regard either, so I thought I'd try to unlock it and flash it with CyanogenMOD.
But I can't seem to install the recovery. It seems to keep giving me the error:
Code:
FAILED <remote: Command not allowed>
Note that my phone isn't on Debug mode because I can't access the os. Trying to unlock the phone and swiftly installing recovery "seems" to work, but on rebooting the device I don't see a pink light. Again, after powering off and into Fastboot, I can't seem to install recovery again.
I'm stuck with a pseudo-bricked phone and not sure what to do! I'd VERY much appreciate some help!
AFAIK, there are currently no solutions, other than replacing the motherboard. There were several attempt with Flashtool with no luck.
P.S. Warranty doesn't cover it.

Stuck at "your device has been unlocked" screen, please help me

I unlocked bootloader and wanted to install Magisk with TWRP but it kept giving me Error 1 saying "boot image patched by unsupported programs, please restore stock boot image" so I searched for the boot.img, transfered to internal device of the phone and flash it but I didn't do wipe data and now my phone is stuck in "your device has been unlocked and can't be trusted" message. I tried powering off by pressing the power off button, it goes on black screen for a couple of seconds then gets back to the same message screen, same with trying to enter into recovery mode by pressing power and volumen down button, comes back and gets stuck in the same screen, I tried connecting to pc with usb but doesn't recognize it. I dont know what to do please help me

Question Pixel 6 Pro stuck in fastboot, not from downgrading.

Hi All,
Apologies if this has already been covered somewhere but I've been scouring the internet for most of the day and come up with nothing.
tldr: My Pixel 6 Pro has been running absolutely fine for 9 months, no issues what so ever through all the automatic updates, I powered it off this morning to apply a new screen protector went to turn it back on and its been stuck in fast boot since with every option that can be selected returning to the same screen. Not been fiddled with, no root nor boot loader unlock.
Simply turned it off put the screen protector on turned back on and it has been stuck in fast boot ever since with a list of things below I have tried;
Restarted, no change straight back to fastboot.
Recovery Mode, no luck same as 1.
Rescue mode and using googles update/repair tool, cannot connect result is the same as number 1.
Restart bootloader, no luck same as 1.
Flashed barcode setting on and off (i know), device state & NOS Production some times change see non error image.
Flashing via android flash tool, boot loader locked wont allow. 'error getting device locked state -1'
Using force options confirms bootloader needs unlocking.
Connected to fastboot.exe on pc.
fastboot devices, correctly recognises the device is connected.
fastboot set_active a, FAILED (remote: 'error getting device locked state -1') message.
fastboot set_active a --force, same as above.
fastboot set_active other, same as above
fastboot reboot --slot a, accepts command with slower restart than normal but reverts to b.
fastboot getvar all, works list in attachments if its is of any interest.
Details of the device,
Contract device from O2 so probably vendor locked.
Was working fine but the past week or so there have been occasions where it wouldn't accept a correct pin, then would after about 5-6 attempts then be fine some time. I didn't pay it too much thought at the time as nothing seemed off and fingerprint was always fine but seems more relevant now.
I'm not enrolled for the beta.
I haven't tried to root or unlock the bootloader.
For the first time I've been pretty boring with a phone and haven't fiddled with a thing.
I don't think I've even had the dev options menu opened on it.
I refuse to believe its bricked itself for no apparent reason but google seems to be failing me or I must be looking for the wrong thing. There must be something I can do via fastboot surely given that it has got some form of communication?
If anyone has any further suggestions it would be much appreciated before I go down the return/replace route.
I assume you didn't have OEM Unlocking enabled before this happened. Without an unlocked bootloader, there is nothing you can do to fix it, because the bootloader will reject any of the necessary commands to reflash the device. If you're still under warranty, seek warranty repair; this is going to require replacing the mainboard, because no one has the necessary tools to perform a low level reflash.
If the bootloader was unlocked, fixing this would be fairly simple because you'd just have to reflash the boot image. But, as I described above, a locked bootloader rejects all the commands that would help in this situation, and there is no way to unlock the bootloader if OEM Unlocking was not enabled.
dch29 said:
Hi All,
Apologies if this has already been covered somewhere but I've been scouring the internet for most of the day and come up with nothing.
tldr: My Pixel 6 Pro has been running absolutely fine for 9 months, no issues what so ever through all the automatic updates, I powered it off this morning to apply a new screen protector went to turn it back on and its been stuck in fast boot since with every option that can be selected returning to the same screen. Not been fiddled with, no root nor boot loader unlock.
Simply turned it off put the screen protector on turned back on and it has been stuck in fast boot ever since with a list of things below I have tried;
Restarted, no change straight back to fastboot.
Recovery Mode, no luck same as 1.
Rescue mode and using googles update/repair tool, cannot connect result is the same as number 1.
Restart bootloader, no luck same as 1.
Flashed barcode setting on and off (i know), device state & NOS Production some times change see non error image.
Flashing via android flash tool, boot loader locked wont allow. 'error getting device locked state -1'
Using force options confirms bootloader needs unlocking.
Connected to fastboot.exe on pc.
fastboot devices, correctly recognises the device is connected.
fastboot set_active a, FAILED (remote: 'error getting device locked state -1') message.
fastboot set_active a --force, same as above.
fastboot set_active other, same as above
fastboot reboot --slot a, accepts command with slower restart than normal but reverts to b.
fastboot getvar all, works list in attachments if its is of any interest.
Details of the device,
Contract device from O2 so probably vendor locked.
Was working fine but the past week or so there have been occasions where it wouldn't accept a correct pin, then would after about 5-6 attempts then be fine some time. I didn't pay it too much thought at the time as nothing seemed off and fingerprint was always fine but seems more relevant now.
I'm not enrolled for the beta.
I haven't tried to root or unlock the bootloader.
For the first time I've been pretty boring with a phone and haven't fiddled with a thing.
I don't think I've even had the dev options menu opened on it.
I refuse to believe its bricked itself for no apparent reason but google seems to be failing me or I must be looking for the wrong thing. There must be something I can do via fastboot surely given that it has got some form of communication?
If anyone has any further suggestions it would be much appreciated before I go down the return/replace route.
Click to expand...
Click to collapse
Kind of sounds like a stuck hardware button, either power and volume that's makes the phone think you are holding down buttons during boot to get into bootloader
Can you press the power button to start the system? If not, try this (it may be useful, but it may get worse, please be cautious) Hold on power button and volume down at the same time for 45s, When you press 30 seconds, the screen should turn off and restart to this interface. Then do it again as above, when it restarts to the interface again, try to press the power button to enter the system.translate form Chinese(simplified)_Google
Juuuuune said:
Can you press the power button to start the system? If not, try this (it may be useful, but it may get worse, please be cautious) Hold on power button and volume down at the same time for 45s, When you press 30 seconds, the screen should turn off and restart to this interface. Then do it again as above, when it restarts to the interface again, try to press the power button to enter the system.translate form Chinese(simplified)_Google
Click to expand...
Click to collapse
Thanks but no change sadly, still completely booked.

Bricked Nexus 5x, bootloop, bootloader locked

Hello @All,
I bought myself a new toy: a bricked Nexus 5x. The only thing I can do is enter the bootloader mode. Otherwise the phone is showing the Google logo.
In bootloader mode the last two lines are "Secure Boot - Enabled" and "Device State - Locked". The "fastboot devices" states that the device is present.
I can neither access any recovery nor install one (because bootloader locked). The device isn't rooted. Parallel to posting this I am searching the depths of the web. Of course without a solution.
Can I do anything else?
hmm, did you try going into the recovery and resseting it, if that didnt work go on your computer, go to bootloader mode, and on your computer try typing: fastboot flashing unlock or fastboot oem unlock, if none of those work, then try reflashing the firmware trough recovery or fastboot, here is the rom for adb sideload trough recovery...
here is a direct download cuz it wouldnt post the zip https://dl.google.com/dl/android/aosp//bullhead-ota-mhc19q-8fe67a2b.zip
I can't access the recovery, but I'll try fastboot again. "fastboot flashing unlock" and "fastboot oem unlock" don't work. I get a " FAILED (remote: 'oem unlock is not allowed')" message.
ok, try this, go in fastboot, and run this command, fastboot flash boot N2G47Z_4Cores.img with the img that i send you, if it works, then see if iit boots up!
it doesnt wanna send it, heres a link to download it https://www.dropbox.com/s/tm7qt98r6d7q2a6/N2G47Z_4Cores.img?dl=0
I tried
Code:
$ fastboot flash boot N2G47Z_4Cores.img
and the answer was
Code:
Sending 'boot' (12045 KB) OKAY [ 0.464s]
Writing 'boot' FAILED (remote: 'device is locked. Cannot flash images')
fastboot: error: Command failed
...
But thanks for your effort to help me
Heinz- said:
I tried
Code:
$ fastboot flash boot N2G47Z_4Cores.img
and the answer was
Code:
Sending 'boot' (12045 KB) OKAY [ 0.464s]
Writing 'boot' FAILED (remote: 'device is locked. Cannot flash images')
fastboot: error: Command failed
...
But thanks for your effort to help me
Click to expand...
Click to collapse
hey is there a way you can send me a video of what happens when it boots up and when you try to enter recovery, maybe i can still help.
if you cant here send it to my mail [email protected] , this is my mail since 2016 and zombie was mostly for minecraft . but then i was young, so yeah.
I can only describe it for you...
When I try to boot into recovery it happens the same as booting the system. The Google sign appears with a short buzz of the vibration motor, then disappears after 16 seconds, and a second later the same again. A classical boot loop. I can only access the bootloader mode. When I try to boot from there, the same happens. The "system state" is locked, and Secure Boot is enabled.
I can power off the device from the bootloader, then it stays off.
Is there any hope to bring it to life again, or is it a brick forever?
Heinz- said:
I can only describe it for you...
When I try to boot into recovery it happens the same as booting the system. The Google sign appears with a short buzz of the vibration motor, then disappears after 16 seconds, and a second later the same again. A classical boot loop. I can only access the bootloader mode. When I try to boot from there, the same happens. The "system state" is locked, and Secure Boot is enabled.
I can power off the device from the bootloader, then it stays off.
Is there any hope to bring it to life again, or is it a brick forever?
Click to expand...
Click to collapse
well it looks like a problem with either the ram, vibrator, or the partitions, sadly this happened with old nexus devices, so its a brick forever sadly. but if you want you can sell it online for parts.
Ok then, I hope I can sell the brick. Thank you again for your help, @NikolaTechGuy !
But there's one last hope: This thread, shown to me directly under this answer ("Similar threads") that I'm currently writing. One last try...
Heinz- said:
Ok then, I hope I can sell the brick. Thank you again for your help, @NikolaTechGuy !
But there's one last hope: This thread, shown to me directly under this answer ("Similar threads") that I'm currently writing. One last try...
Click to expand...
Click to collapse
Sorry if this is too late but are you sure you can't do anything with the phone?
To enter Bootloader Mode press and hold Vol Down + Power. You will automatically enter Fastboot Mode. You will see the settings of 'Secure boot' and 'Device State'
Use Vol up and Vol Down to scroll through menu and the Power button to select an option:
Start
Restart bootloader
Recovery Mode
Power Off
If you select Recovery Mode, wait until you see the 'Robot lying down' image and "No command" text appear on screen. Now hold Power button and briefly press the Vol up button. The 'Android Recovery' screen should now appear.
To enter LG 'Download Mode':
Power Off your phone.
Now press the Vol. Up button and hold it
Now Plug your phone into your computer using a USB cable
After a few seconds 'download mode' should appear on your phone screen, followed by a 'Firmware Update' screen.
If it doesn't enter LG Downoad Mode then check in your Windows Device Manager under COM/PORTS. See if you have connected in Qualcomm 9008 EDL (Emergency Download ) Mode. The connection will appear as Qualcomm HS-USB QDLoader 9008. You might have to download the Qualcomm driver for this to work.
If you can get into Recovery Mode or EDL mode you still have options! It depends how much time and effort you want to spend on a 7 year old phone with no sd card option.
You can become 'obsessed' like me, and buy a hot air gun solder rework station to try and reflow the solder under the MSM8992 chip to fix the 'bootloop of death'! NOTE: I have tried it on 3 bricked Nexus 5X and only got a temporary success on one phone - the other two I did a very good job of frying the chip! Mind you I now have alot of spare parts!
I took the Nexus to a repairman who calls himself "Handy-Doc". He told me it was the hardware. He couldn't install anything as well as me. But replacing the motherboard could help. So I ordered a motherboard on AliExpress. This is my last try!
Heinz- said:
I took the Nexus to a repairman who calls himself "Handy-Doc". He told me it was the hardware. He couldn't install anything as well as me. But replacing the motherboard could help. So I ordered a motherboard on AliExpress. This is my last try!
Click to expand...
Click to collapse
You will have to keep us updated. I looked at those motherboards but wasn't sure about them. What version of Android is installed? Do they come with a new IMEI or are they blank? etc. Taking a 5X apart is very straightforward with a couple of simple phone tools. There are plenty of Youtube videos that show you how to do it - it might save you having to pay "handy-Doc"!
No, it doesn't work. I can plugin the phone when it's in "Download Mode" but nothing more happens. After a few seconds the phone tries to boot again. The "Handy Doc" man gave me back the phone without asking for payment.
The motherboard is on its way from China to Germany. This can take several weeks.
Hi
I am sorry if I am posting this at the wrong place.
I bricked my Nexus 5x device flashing DivestOS on it.
I flashed two different LineagOS on this device successfully in the past and the genuine Android when I was rolling it back. It always worked, but not this time.
Trying to roll it back to genuine Android, there were errors that several ".img" was missing in the archive.
I tried to chat with Android developers on Matrix chat and also reported this problem here, on DivestOS forum, but they blame hardware and/or user mistake.
I took it farther to sort the device problem and made it unresponsive, the screen is black and it does not react to anything at all now.
All I needed to know if there is ANY way to bring this device back to life.
I found some "LGFlashTool_2.0.1.6" on one of the old forumes of (2016), but I did not try it, I believe it will not work, and wanted to know from Android developer's oppinion before I try anything else.
Thank you
---Update:
I opened it, unplugged and re-plugged the battery.
Was able to boot it into the fastboot menu.
1. secure boot - enabled
2. device state - unlocked
-Tried to flash the genuine Android (I did it several times and I know it works)
No success!
Please see the terminal screenshot attached for errors.
If you can get into fastboot have you tried flashing TWRP and getting into it again? Then try flashing a lineageOS that you know works.
bjlabuk said:
If you can get into fastboot have you tried flashing TWRP and getting into it again? Then try flashing a lineageOS that you know works.
Click to expand...
Click to collapse
Thanks for reply =).
This is a goot point.
I'll try and post the result here.
Now, not always I can boot it into fastboot menu, sometimes it's totally un-resposive, does not show any sights of life, it can be the battery charge problem (battery was not bad though).
balakarpo said:
Thanks for reply =).
This is a goot point.
I'll try and post the result here.
Now, not always I can boot it into fastboot menu, sometimes it's totally un-resposive, does not show any sights of life, it can be the battery charge problem (battery was not bad though).
Click to expand...
Click to collapse
Yea, looking at the log everything appears to be okay until that last line. Did you use flash-all.bat from the factory image bullhead-opm7.181205.001-factory-5f189d84.zip?

Bootloading Kyocera DuraXV Extreme

Hello, I'm having some serious trouble bootloading my Kyocera DuraXV Extreme (AOSP)
I've went into developer options and activated USB debugging and allowed OEM unlocking.
But I get stuck on rebooting into bootloader mode. I've tried different approaches:
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
2. adb reboot bootloader command
Both options reboot the phone without going into bootloader mode.
Seems Kyocera decided to somehow lock the bootloader mode. Anyone know of a workaround here?
jonas.sj said:
Hello, I'm having some serious trouble bootloading my Kyocera DuraXV Extreme (AOSP)
I've went into developer options and activated USB debugging and allowed OEM unlocking.
But I get stuck on rebooting into bootloader mode. I've tried different approaches:
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
2. adb reboot bootloader command
Both options reboot the phone without going into bootloader mode.
Seems Kyocera decided to somehow lock the bootloader mode. Anyone know of a workaround here?
Click to expand...
Click to collapse
My comments below are based on the belief that you are trying to unlock the bootloader.
I am not familiar with this phone but generally the two steps mentioned by you are not enough to unlock the bootloader. After those steps, you'll have to issue a command via adb to unlock the bootloader and if successful, then you can boot into it for further operations. The command will vary between devices, so search and profit.
Thanks, this cleared it up a bit, you are right, I'm trying to unlock it.
I'm trying the command fastboot flashing unlock but only getting the message < waiting for any device >. I read somewhere that I might need some USB drivers but I don't know where to find them. I have the latest version of the standard USB drivers for the phone, but as I understand it I need special drivers for this?
I'm trying to follow the steps here: https://www.ifixit.com/Guide/How+to+unlock+the+bootloader+of+an+Android+Phone/152629#s317298
I get stuck on the step:
Enter the command adb reboot bootloader
Wait a couple seconds until your device rebooted into the bootloader, then enter the command fastboot flashing unlock
My phone isn't "rebooted into the bootloader", it just reboots. It gives the message "< waiting for any device >" when I write fastboot flashing unlock
jonas.sj said:
I'm trying to follow the steps here: https://www.ifixit.com/Guide/How+to+unlock+the+bootloader+of+an+Android+Phone/152629#s317298
I get stuck on the step:
Enter the command adb reboot bootloader
Wait a couple seconds until your device rebooted into the bootloader, then enter the command fastboot flashing unlock
My phone isn't "rebooted into the bootloader", it just reboots. It gives the message "< waiting for any device >" when I write fastboot flashing unlock
Click to expand...
Click to collapse
It should be a driver issue. When the phone is on and you connect it to the PC/laptop and send the command 'adb devices', does it show an alphanumeric value? Likewise, when you are booted into the bootloader by key combination and send the command, 'fastboot devices', does it show the same alphanumeric response? If so, the drivers are installed properly. If not, either you don't have the correct drivers or they are not installed properly. Try installing the drivers again after disabling driver signing in Windows on your PC (search for it on Google).
Hello, can you clarify what you mean by "booted into the bootloader by key combination"?
My problem is I cannot boot into bootloader at all.
Any attempt at doing so results in a normal boot of the device.
jonas.sj said:
Hello, can you clarify what you mean by "booted into the bootloader by key combination"?
My problem is I cannot boot into bootloader at all.
Any attempt at doing so results in a normal boot of the device.
Click to expand...
Click to collapse
Are you sure that the key combination for booting into bootloader is what you described in the first post?
1. Starting up phone while holding volume up and down buttons. Then select "reboot to bootloader".
Click to expand...
Click to collapse
I see Power plus Volume Up as the suggested one from a Google search. Try that.
If you can't even boot into the bootloader with the correct key combination, I don't know how to help you further since we are starting to go in circles. I am sorry.
Hello, thank you so much for trying to help me. It seems I can't boot into bootloader. Volume up + power gives the same result as what I did before.: It opens a "Recovery" menu where I can choose reboot to bootloader, but this option just reboots the phone.
I've been in contact with Kyocera and they say:
Thanks for contacting the Kyocera Customer Support. We will be more than happy to assist you with your concern
In this case allow us to inform you that since this device is a basic phone , it doesn't have the option to activate fastboot mode. By installing something that will change the way the phone works , that will void the warranty that came with the phone. We as manufacture can not help you to modify the software that came with the phone.
So the phone's fastboot mode has been deactivated. But since it's an android I guess it should still be possible with some workaround. I just don't know whee to start, I've been researching for a week with no result.
Something interesting ehre, maybe someone with more coding knowledge can tell what's going on.
I found the source code for the phone and located a file called recovery.c which I guess handles the menu I see when I press volume up + power button. Maybe some clue to why the phone isn't going into fastboot mode?

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