V30 H931 (frankensteined to US998, bootloader unlocked) refuses to boot into Android - LG V30 Questions & Answers

During a flash, the connection to my V30 was interrupted for some reason, probably a worn out USB cable getting knocked into and shifting around in the USB C port. Ever since then, the phone refuses to get past the bootloader or recovery if I hold down the proper keys.
I have used a modded version of LGUP that I originally downloaded to help frankenstein this phone to refurbish, upgrade, even chip erase (this does get rid of the IMEI and other important numbers but since this phone is no longer my daily it's fine if it has no IMEI to me, I'll be honest I'm not sure if chip erase gets rid of any other stuff that should absolutely never be touched). The phone still boots straight to the bootloader. I have also tried flashing custom recoveries (such as TWRP, this has been successful) and installing .zip format roms to the device through the recovery (not successful, still boots straight to bootloader without fail).
So uh... did I manage to brick my V30? Or does it sound like there's at least a bit of hope? Any help would be greatly appreciated, I really wanted to use this thing as a sort of glorified iPod because of that magical dac.

Jeebüüs said:
During a flash, the connection to my V30 was interrupted for some reason, probably a worn out USB cable getting knocked into and shifting around in the USB C port. Ever since then, the phone refuses to get past the bootloader or recovery if I hold down the proper keys.
I have used a modded version of LGUP that I originally downloaded to help frankenstein this phone to refurbish, upgrade, even chip erase (this does get rid of the IMEI and other important numbers but since this phone is no longer my daily it's fine if it has no IMEI to me, I'll be honest I'm not sure if chip erase gets rid of any other stuff that should absolutely never be touched). The phone still boots straight to the bootloader. I have also tried flashing custom recoveries (such as TWRP, this has been successful) and installing .zip format roms to the device through the recovery (not successful, still boots straight to bootloader without fail).
So uh... did I manage to brick my V30? Or does it sound like there's at least a bit of hope? Any help would be greatly appreciated, I really wanted to use this thing as a sort of glorified iPod because of that magical dac.
Click to expand...
Click to collapse
You've tried going into download mode manually, use Dev Patched LGUP in Refurbish mode to reinstall US998 20h KDZ?

ChazzMatt said:
You've tried going into download mode manually, use Dev Patched LGUP in Refurbish mode to reinstall US998 20h KDZ?
Click to expand...
Click to collapse
I've entered DL mode manually and I'm using the dev patched version of LGUP. I haven't tried that particular KDZ though, I could give it a shot for the hell of it. Anyways thanks.

Also, would using Qualcomm download mode work? I'm fine with opening up the phone to trigger the contacts, I just don't know if I'll be able to do any good once in that mode.

ChazzMatt said:
You've tried going into download mode manually, use Dev Patched LGUP in Refurbish mode to reinstall US998 20h KDZ?
Click to expand...
Click to collapse
Just tried that KDZ, didn't help.

Jeebüüs said:
Just tried that KDZ, didn't help.
Click to expand...
Click to collapse
Sorry.
What happens when you use ADB/fastboot commands to get to bootloader? It never finishes booting?

Jeebüüs said:
Also, would using Qualcomm download mode work? I'm fine with opening up the phone to trigger the contacts, I just don't know if I'll be able to do any good once in that mode.
Click to expand...
Click to collapse
First, you don't need to open the phone to enter QDLoader / EDL / 9008 mode:
With the phone connected to a PC (you don't need any special software loaded, just the USB connection), and with the phone powered on and unlocked, hold vol +, vol -, and power to shutdown the phone. Keep holding them till you get a countdown on the screen. The second the countdown completes, and the screen shuts off, let go of power, keep holding vol -, and start tapping the crap out of vol +.
If you have problems getting into recovery using the key combo, this is at least 5x as hard to get it right. When you do, the screen will be blank and the phone will show up in your OS as 9008. Example in Linux:
Code:
Bus 001 Device 015: ID 05c6:[B]9008[/B] Qualcomm, Inc. Gobi Wireless Modem ([B]QDL mode[/B])
To exit 9008 if you decide not to flash anything, just press and hold vol - and power until the phone reboots.
Now, with that said, you still need the firehose. I haven't looked for it yet because I haven't needed it, but there is a V30 (all models except the H932) firehose out there somewhere. Also, of course, you need QFIL.
Now will this help -- as long as there isn't a hardware problem with your phone, you can do anything you want in QDL mode with the understanding that signatures are still checked, so you can only flash V30 (non-H932) firmware. If flashing a KDZ doesn't fix your problem, you must have a problem with a partition that doesn't get flashed from a KDZ. Unfortunately, if you don't know which one, it will be trial and error and you will need a complete dump of a V30 minus EFS.
-- Brian

ChazzMatt said:
Sorry.
What happens when you use ADB/fastboot commands to get to bootloader? It never finishes booting?
Click to expand...
Click to collapse
Pretty much. Fastboot behaves normally and it does reboot with the fastboot reboot command but it just ends up right back at the bootloader unless I use the key combos required to get into LGUP DL mode/recovery.

That's great info Brian. Always thought opening phone, disconnecting battery ribbon, and shorting test points are only way to force qdl 9008 mode. Thanks for this info :good:

Related

[q] softbricked? i think?

So I recently wanted to load a custom rom on my p769.
Unfortunately, I tried to flash a rom without actually having the bootloader unlocked (thought i did?)
Now i'm forever stuck at the "LG Security Error" screen.
I can't seem to do anything else! :'(
The only other mode I can boot into is S/W update screen (holding volume up and plugging in usb cable).
I tried to get to another mode I read about (vol up + vol down then plug usb cable for "download" mode, to no avail)
Anyway, once I do get it into sw update mode, I can't seem to do anything either way, when i try to list adb devices, none are listed, when i try to use lg mobile tool, it never connects, when i try to use kdz offline update tool, it doesn't see the phone, it just keeps trying to connect, the log freaks out at "_IsConnectedPhone Call", and just keeps trying to "connect" to phone but can't
Am I totally screwed here?
What can I do? Any help appreciated!
rotatorkuf said:
So I recently wanted to load a custom rom on my p769.
Unfortunately, I tried to flash a rom without actually having the bootloader unlocked (thought i did?)
Now i'm forever stuck at the "LG Security Error" screen.
I can't seem to do anything else! :'(
The only other mode I can boot into is S/W update screen (holding volume up and plugging in usb cable).
I tried to get to another mode I read about (vol up + vol down then plug usb cable for "download" mode, to no avail)
Anyway, once I do get it into sw update mode, I can't seem to do anything either way, when i try to list adb devices, none are listed, when i try to use lg mobile tool, it never connects, when i try to use kdz offline update tool, it doesn't see the phone, it just keeps trying to connect, the log freaks out at "_IsConnectedPhone Call", and just keeps trying to "connect" to phone but can't
Am I totally screwed here?
What can I do? Any help appreciated!
Click to expand...
Click to collapse
You're on JB, right? KDZ offline flash tool cannot detect phone in JB. you have to flash ICS x-loader/u-boot then that tool can detect your phone. please visit http://forum.xda-developers.com/showthread.php?t=2292828
For LG mobile support tool problem, it need to download rom from LG server. Have you remove/comment 1-2 line that you add to hosts file? You said it never connect that mean it don't see your phone?
artit said:
You're on JB, right? KDZ offline flash tool cannot detect phone in JB. you have to flash ICS x-loader/u-boot then that tool can detect your phone. please visit http://forum.xda-developers.com/showthread.php?t=2292828
For LG mobile support tool problem, it need to download rom from LG server. Have you remove/comment 1-2 line that you add to hosts file? You said it never connect that mean it don't see your phone?
Click to expand...
Click to collapse
I've tried this as well, but I don't know if i'm doing it correctly
I installed the 'drivers' it needs (following the readme file) when it shows the "unknown/other" device (the part where you have to catch it in device manager).
After this, I run the start.bat, enter 5 and hit enter, i unplug my phone and hit any key, then i plug it in as it says and it does it's thing, then i wait for 4 seconds when it begins to say "waiting for device", i put my battery in and it just stays there, waiting for device
Can you help me figure this out? Am I doing something wrong?
rotatorkuf said:
I've tried this as well, but I don't know if i'm doing it correctly
I installed the 'drivers' it needs (following the readme file) when it shows the "unknown/other" device (the part where you have to catch it in device manager).
After this, I run the start.bat, enter 5 and hit enter, i unplug my phone and hit any key, then i plug it in as it says and it does it's thing, then i wait for 4 seconds when it begins to say "waiting for device", i put my battery in and it just stays there, waiting for device
Can you help me figure this out? Am I doing something wrong?
Click to expand...
Click to collapse
Please read these three link
http://forum.xda-developers.com/showpost.php?p=44578108&postcount=34
http://forum.xda-developers.com/showpost.php?p=44653501&postcount=55
http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
kuma82 said:
Please read these three link
http://forum.xda-developers.com/showpost.php?p=44578108&postcount=34
http://forum.xda-developers.com/showpost.php?p=44653501&postcount=55
http://forum.xda-developers.com/showpost.php?p=43642515&postcount=21
Click to expand...
Click to collapse
i think i'm making some progress, thanks for helping so far!
anyway, i'm able to get fastboot on my phone (i think?), the screen on the phone shows the flipped LG logo and at the top right it says 2.0 fastboot (flipped of course)
but, what am i supposed to do here?
i see the 2 omap devices listed on my device manager
whenever i try to run the kdz offline flash tool (if i'm using the right one), it still doesn't detect the phone as connected, doesn't even try, just errors and tells me to connect to usb port and restart or exit
what am i supposed to do once i'm in fastboot recovery for my phone?
should i comment out the 2 listings i added to the hosts file? should i NOT be running shttps app? which kdz offline flash tool should i be using? (currently trying: UpTestEX_mod2_marwin.exe)
rotatorkuf said:
i think i'm making some progress, thanks for helping so far!
anyway, i'm able to get fastboot on my phone (i think?), the screen on the phone shows the flipped LG logo and at the top right it says 2.0 fastboot (flipped of course)
but, what am i supposed to do here?
i see the 2 omap devices listed on my device manager
whenever i try to run the kdz offline flash tool (if i'm using the right one), it still doesn't detect the phone as connected, doesn't even try, just errors and tells me to connect to usb port and restart or exit
what am i supposed to do once i'm in fastboot recovery for my phone?
should i comment out the 2 listings i added to the hosts file? should i NOT be running shttps app? which kdz offline flash tool should i be using? (currently trying: UpTestEX_mod2_marwin.exe)
Click to expand...
Click to collapse
You should run start.bat and select flash ICS u-boot/x-loader for P769
When it finish, reboot you phone to S/W update mode and try to use UpTestEX_mod2_marwin.exe to flash your P769 kdz again to restore your phone.
Maybe I miss something about P769 model, please search in FAQ forum many people have this issue, and most of them have fixed it.
artit said:
You should run start.bat and select flash ICS u-boot/x-loader for P769
When it finish, reboot you phone to S/W update mode and try to use UpTestEX_mod2_marwin.exe to flash your P769 kdz again to restore your phone.
Maybe I miss something about P769 model, please search in FAQ forum many people have this issue, and most of them have fixed it.
Click to expand...
Click to collapse
you guys are awesome!
finally got my phone back on rooted firmware
now to unlock the bootloader

biig trouble lg v10 h901 please help

hi all i have lg v10 h901 21j
i tried to root it i download tot file LGH901AT-01-V20j-310-260-JUL-12-2016-ARB02+0ROOTTWRP
when i flashed it phone off and cant on please help
stock rom H901 21j please and how can i flash it cause phone is dead please please help
please guys help the tot file from here https://forum.xda-developers.com/tmo...-h901-t3382819
when flash finish phone off and cant turn on please help
my phone model H901 21j
same issue . ihave h901 running on 5.1 update it via lg up to 6.0 20e then its bricked . pc read it as qualcom hs-usb 9008 . any help/ solution
Is there a reason this thread has been ignored? I also have a LG V10 H901 21J MM/6.0 stock firmware.
I have not as of yet flashed a .tot file to it, because I am not sure that the .tot files for other H901 phones is correct. I have heard different things, regarding this particular version, which I have heard is a Korean version of the phone, I am not sure if this is applicable or true, but apparently this may mean the phone has a different board than other H901s out there.
What I can say for certain is that I was unable to unlock my bootloader, due to the inability to reach Fastboot/Bootloader moder from this phone using any of the normal methods which work on my other LG V10 901. The procedures I have followed to get into Fastboot/Booloader mode are: (a) Shutting down phone; --> Pressing Power-Off, and Volume Down at the same time, holding for 5-6 seconds after the LG screen appears, which just causes the phone to boot normally, (b) running <adb reboot bootloader>, which again just boots normally, it does not go into the bootloader/fastboot mode; and (c) Power down /turn off the phone, once off, hold down Volume Down, while you plugin a USB cable into the phone(that is already plugged into a computer with good drivers on the phone), continuing to hold down the Volume Down until you reach Fastboot, again same results and this does assume that the USB cable is plugged into a computer with good drivers.. Just for the record for the methods listed that involve having the phone attached to the computer, I have tried this with the phones USB in both Multi-Media Mode, and PTP mode, without a difference being made, and it should be mentioned that I have successfully performed all 3 methods on my LG V10 H901 20L running stock MM, which was successfully rooted using the Dirtycow exploit. Yes, debugging is enabled on the phone, and although it does not effect getting into Fastboot mode itself, OEM UNLOCK is enabled.
If I could get into Fastboot on this phone, and get it unlocked, then I should be able to use the Dirtycow exploit in order to get temporary root, that would of course allow me to then flash TWRP recovery directly to the recovery partition, and solve the issue.
rabahallia I know that this is almost a year late, but can you tell me if your phone was unlocked when you flashed the .tot file, and if so, how did you go about unlocking it? Also, I can tell you based on the chipset that the phone runs, that you should be able to image a microSD card using a ROM designed for the phone, and then boot using the flashed sdcard image. If you are not able to do that, then can you tell me if now that your phone is bricked, is the phone turning on at all, or just not booting fully? Can you attempt to get it into Fastboot mode now, using the methods I described above? You will have the highest chance of success using the 3rd method in terms of being straight forward, and of course the fact that your phone is not booting again that involves: plugging a USB cable into your PC, then, shutting down your phone which is not a problem in your case with your phone off, hold down the Volume Down button on your phone, while still holding down the Volume Down plug the USB cable into your phone, and continue holding Volume Down until your phone reaches the fastboot/bootloader menu. If you are able to do this, and you DID NOT unlock your phone before you flashed the .tot with the modified recovery onto your phone, then unlocking the bootloader at this point may allow your phone to boot. To do this, after you have reached Fastboot/Booloader, you will use the command <fastboot oem unlock> wait for it to finish, and it should inform you that your phone is now unlocked, then you can reboot your phone using <fastboot reboot>. Please let me know if this worked, or if you still have the phone, if you could try this. I am interested to know if flashing the .tot to a phone that can not be unlocked due to inability to reach the bootloader/Fastboot mode, as you may have done, would allow that mode to be reached after bricking the phone, and if so, if unlocking the phones bootloader after the fact, fixes the issue. If this does not fix the issue, but you were able to reach fastboot/bootloader, then you should be able to reboot back into Fastboot mode, and then flash a recovery, which would in turn allow you to flash a new ROM to the phone. If anyone else out there has any information SPECIFICALLY ON THE 21J version of H901 stock MM, please provide any information you may have. Or if you have any information about what board is running on this phone, if it is not the same board running on every other version of the H901 such as the 20J, 20e, 20L.

BIG TROUBLE, HARD bricked my new LG V30+ (H932)

I followed the lafsploit to a tee and everything went great until using LGUP to flash H932 10d KDZ. As the instructions indicate i selected all partitions etc laf. It went through without seeming to have any issue at all. When however it went to reboot it was a hard brick. Nothing. The only life i can tell is that when i plug in the phone to the computer i can here the chirp of it finding the device. I've tried every combination of keyholds to and some cause the noise of it rebooting and recoming on line. But nothing on the screen.
This is literally the first day i've had this and the first thing i did....i'm almost in tears.
You were supposed to flash the entire 10d kdz when down grading, correct?
And the reason you are asking for help here, versus the actual lafsploit thread is because....?
christoophat said:
And the reason you are asking for help here, versus the actual lafsploit thread is because....?
Click to expand...
Click to collapse
9008 mode.. Brian hands are tied trying to get material for us like Android 9.0.. contact Messi in Stylo 2/3 forum.. tell him you need help, willing to blind test, and if need be he appreciates donations.. just know if you lose 9008 mode, the problem will be worse..
lowkeyst4tus said:
9008 mode.. Brian hands are tied trying to get material for us like Android 9.0.. contact Messi in Stylo 2/3 forum.. tell him you need help, willing to blind test, and if need be he appreciates donations.. just know if you lose 9008 mode, the problem will be worse..
Click to expand...
Click to collapse
I was following these steps word by word by Brian to root and put twrp
"Make sure you are on version 10d. Again, check in Software Info / Software Version if you are unsure.
Boot to download mode
In LG UP, choose partition DL.
Pick the H933 10h KDZ
Click start
You will be given a list of partitions to flash, ONLY check laf
Click start
You will get a warning about additional modified partitions (cache, OP, userdata) -- ignore it, and click OK.
Click OK and it will start flashing.
Once the flash completes, your phone will reboot into the OS. Just power off, and go back into download mode.
Choose partition DL again, and this time pick the H932 10d KDZ.
Select all partitions except laf. If you forget to uncheck laf, you will have to do this all over again."
When it completes, it will reboot your phone.
it did reboot but in black screen
adb doesnt find any device listed either I have LG V30 H932 for tmobile
When I press and hold power and volume up or volume down after 20 to 30 sec it make sound like its connected to PC, I never had LG before this is the first LG I owned and its already bricked
I restarted the PC it came under device manager Com372 Qualcomm HS-USB QDLoader 9008
zfk110 said:
I was following these steps word by word by Brian to root and put twrp
"Make sure you are on version 10d. Again, check in Software Info / Software Version if you are unsure.
Boot to download mode
In LG UP, choose partition DL.
Pick the H933 10h KDZ
Click start
You will be given a list of partitions to flash, ONLY check laf
Click start
You will get a warning about additional modified partitions (cache, OP, userdata) -- ignore it, and click OK.
Click OK and it will start flashing.
Once the flash completes, your phone will reboot into the OS. Just power off, and go back into download mode.
Choose partition DL again, and this time pick the H932 10d KDZ.
Select all partitions except laf. If you forget to uncheck laf, you will have to do this all over again."
When it completes, it will reboot your phone.
it did reboot but in black screen
adb doesnt find any device listed either I have LG V30 H932 for tmobile
When I press and hold power and volume up or volume down after 20 to 30 sec it make sound like its connected to PC, I never had LG before this is the first LG I owned and its already bricked
I restarted the PC it came under device manager Com372 Qualcomm HS-USB QDLoader 9008
Click to expand...
Click to collapse
Did you follow the steps correctly? When i did this i followed the exact steps and my h932. did not brick it. still has the h933 laf on it now. What steps did you take or did you skip a step?
zfk110 said:
I was following these steps word by word by Brian to root and put twrp
"Make sure you are on version 10d. Again, check in Software Info / Software Version if you are unsure.
Boot to download mode
In LG UP, choose partition DL.
Pick the H933 10h KDZ
Click start
You will be given a list of partitions to flash, ONLY check laf
Click start
You will get a warning about additional modified partitions (cache, OP, userdata) -- ignore it, and click OK.
Click OK and it will start flashing.
Once the flash completes, your phone will reboot into the OS. Just power off, and go back into download mode.
Choose partition DL again, and this time pick the H932 10d KDZ.
Select all partitions except laf. If you forget to uncheck laf, you will have to do this all over again."
When it completes, it will reboot your phone.
it did reboot but in black screen
adb doesnt find any device listed either I have LG V30 H932 for tmobile
When I press and hold power and volume up or volume down after 20 to 30 sec it make sound like its connected to PC, I never had LG before this is the first LG I owned and its already bricked
I restarted the PC it came under device manager Com372 Qualcomm HS-USB QDLoader 9008
Click to expand...
Click to collapse
Did you unlock bootloader 1st? everything else you mentioned doing sounds correct..
zfk110 said:
I was following these steps word by word by Brian to root and put twrp
"Make sure you are on version 10d. Again, check in Software Info / Software Version if you are unsure.
Boot to download mode
In LG UP, choose partition DL.
Pick the H933 10h KDZ
Click start
You will be given a list of partitions to flash, ONLY check laf
Click start
You will get a warning about additional modified partitions (cache, OP, userdata) -- ignore it, and click OK.
Click OK and it will start flashing.
Once the flash completes, your phone will reboot into the OS. Just power off, and go back into download mode.
Choose partition DL again, and this time pick the H932 10d KDZ.
Select all partitions except laf. If you forget to uncheck laf, you will have to do this all over again."
When it completes, it will reboot your phone.
it did reboot but in black screen
adb doesnt find any device listed either I have LG V30 H932 for tmobile
When I press and hold power and volume up or volume down after 20 to 30 sec it make sound like its connected to PC, I never had LG before this is the first LG I owned and its already bricked
I restarted the PC it came under device manager Com372 Qualcomm HS-USB QDLoader 9008
Click to expand...
Click to collapse
May I know how did you get it back? Through firehose? Thanks
bobyang said:
May I know how did you get it back? Through firehose? Thanks
Click to expand...
Click to collapse
No, I had to change the motherboard.
zfk110 said:
No, I had to change the motherboard.
Click to expand...
Click to collapse
Thanks. I think I will need to do the same. I have a question, do I need to replace it with H932 motherboard as well, or I can use others, such as H930 with 128GB? Do they have the same size? thanks
bobyang said:
Thanks. I think I will need to do the same. I have a question, do I need to replace it with H932 motherboard as well, or I can use others, such as H930 with 128GB? Do they have the same size? thanks
Click to expand...
Click to collapse
Put Verizon, Sprint MB in it, since it's much easier to fix/root those. Internally, they are the same.

bricked lg k8 (lg-k350n) - is there a way to get to fastboot to flash anything?

I was trying to flash lg-k350n with LineageOs and make a whole bunch of idiotic deeds, so currently I'm felling like dying is the best option for me.
1. I've used this tutorial: .getdroidtips.com/install-custom-rom-using-twrp-recovery. It clearly says that this ROM is for Android 8.0 Oreo, while mine is Android 6.0 Marshmallow. Nevertheless I've downloaded ROM lineage-15.0-20170913-Unofficial-MT6735-64-bit.zip. For some reason TWRP mentioned here getdroidtips.com/lineage-os-15-lg-k8-8-0-oreo/ did not wok for me but I've googled a bit and found something called TWRP-recovery-for-LG-K8.img which worked (not by fastboot flash TWRP-recovery-for-LG-K8.img since this TWRP appeared to be to big but simply by fastboot boot TWRP-recovery-for-LG-K8.img).
So I just did:i
turn on debugger
turn off oem lock
adb boot bootloader
fastboot boot TWRP-recovery-for-LG-K8.img
Feeling happy that TWRP loaded nicely I had not done any backjup and just wiped system as suggested here: lineageos.org/devices/h990/install. Then I've tried to installl the Android 8..0. ROM with obviously did not work. And I've got left with a TWRP working and then I've put the last needle in my coffin - I've rebooted hoping that some hard reset or recovery will fix things for me.
So now I have a phone which I'm able to put to recovery, but it does not recover anything. The phone just go dead after such a recovery.
I cannot put it into fastboot mode, if I could, I would just run 'fastboot boot TWRP-recovery-for-LG-K8.img' and at least had a chance to google a bit for maybe a vanilla ROM or anything working, which I could've later installer.
I've seen that there is a way to put the phone into download mode when it will download stuff from S/W "LG Bridge", bu I don't have Windows and haven't yet tried in virtualbox.
Is there any way to unbrick the device? Please help an idiot!
Sorry, you have to find a Windows box I'm afraid, LG is only offering Windows software for flashing. But chances are quite good that you are able to revive the telephone that way. I have bricked my phone as well but was able to unbrick it this way:
Go to www.lg.com, choose your language, select download, software and firmware.
Select smartphone, Android smartphones, K-series and your model number. This is only to come to the download site of LG Bridge, I guess it's not really important to choose the precise model!
Download LG Bridge, install and start it.
Let it update itself and the USB drivers and keep the software running.
Switch off the phone, press Volume up and keep holding that button.
Connect the phone with via USB with the PC while still pressing Volume Up. The phone should be recognized by the PC (install USB driver) and by LG Bridge (watch the status line to the left, it should show the phone type and USB)
The phone should automatically switch on and show a download screen (yippee!)
Select the second tab "software update" and then click on "correct update error" in the lower right. It should automatically download the correct firmware from the internet, so this is rather fool proof!
Click through it and this should start the flashing process, at the end the phone will automatically reboot, ask for the PIN, etc.
Unbricked!!!
Above instruction worked for me on a completely demolished phone. Lineage OS, changed FS, root attempted, I almost though that's it, but no, it recovered, thumbs up.
I haven't tried in Virtual Box, so I cannot tell if this is working. But you've got nothing to loose, right, so why not try it?
xor512 said:
I was trying to flash lg-k350n with LineageOs and make a whole bunch of idiotic deeds, so currently I'm felling like dying is the best option for me.
1. I've used this tutorial: .getdroidtips.com/install-custom-rom-using-twrp-recovery. It clearly says that this ROM is for Android 8.0 Oreo, while mine is Android 6.0 Marshmallow. Nevertheless I've downloaded ROM lineage-15.0-20170913-Unofficial-MT6735-64-bit.zip. For some reason TWRP mentioned here getdroidtips.com/lineage-os-15-lg-k8-8-0-oreo/ did not wok for me but I've googled a bit and found something called TWRP-recovery-for-LG-K8.img which worked (not by fastboot flash TWRP-recovery-for-LG-K8.img since this TWRP appeared to be to big but simply by fastboot boot TWRP-recovery-for-LG-K8.img).
So I just did:i
turn on debugger
turn off oem lock
adb boot bootloader
fastboot boot TWRP-recovery-for-LG-K8.img
Feeling happy that TWRP loaded nicely I had not done any backjup and just wiped system as suggested here: lineageos.org/devices/h990/install. Then I've tried to installl the Android 8..0. ROM with obviously did not work. And I've got left with a TWRP working and then I've put the last needle in my coffin - I've rebooted hoping that some hard reset or recovery will fix things for me.
So now I have a phone which I'm able to put to recovery, but it does not recover anything. The phone just go dead after such a recovery.
I cannot put it into fastboot mode, if I could, I would just run 'fastboot boot TWRP-recovery-for-LG-K8.img' and at least had a chance to google a bit for maybe a vanilla ROM or anything working, which I could've later installer.
I've seen that there is a way to put the phone into download mode when it will download stuff from S/W "LG Bridge", bu I don't have Windows and haven't yet tried in virtualbox.
Is there any way to unbrick the device? Please help an idiot!
Click to expand...
Click to collapse
same here, we are two now.
Don Pedro! said:
Sorry, you have to find a Windows box I'm afraid, LG is only offering Windows software for flashing. But chances are quite good that you are able to revive the telephone that way. I have bricked my phone as well but was able to unbrick it this way:
Go to www.lg.com, choose your language, select download, software and firmware.
Select smartphone, Android smartphones, K-series and your model number. This is only to come to the download site of LG Bridge, I guess it's not really important to choose the precise model!
Download LG Bridge, install and start it.
Let it update itself and the USB drivers and keep the software running.
Switch off the phone, press Volume up and keep holding that button.
Connect the phone with via USB with the PC while still pressing Volume Up. The phone should be recognized by the PC (install USB driver) and by LG Bridge (watch the status line to the left, it should show the phone type and USB)
The phone should automatically switch on and show a download screen (yippee!)
Select the second tab "software update" and then click on "correct update error" in the lower right. It should automatically download the correct firmware from the internet, so this is rather fool proof!
Click through it and this should start the flashing process, at the end the phone will automatically reboot, ask for the PIN, etc.
Unbricked!!!
Above instruction worked for me on a completely demolished phone. Lineage OS, changed FS, root attempted, I almost though that's it, but no, it recovered, thumbs up.
I haven't tried in Virtual Box, so I cannot tell if this is working. But you've got nothing to loose, right, so why not try it?
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Click to collapse
your phone cannot be trusted loooooop, cannot goto download and fastboot mode...
If you don't manage to enter download mode you have probably indeed bricked the phone. If what I've written above doesn't work for you I know of no other way to resurrect it, sorry.
This is because you cannot burn TWRP to the Flash plus there's no tool available to bootstrap an LG phone with a completely naked or corrupted Flash. There must be something like that, because a freshly manufactured phone has by definition a naked Flash.
With Samsung phones you have Odin and with it it is possible to burn a software to a completely dead phone. So it is almost impossible to hard brick it. With LG unfortunately it is different. Plus this phone is somehow crippled, it has only a very, very limited amount of Flash. So I would recommend to not care for this phone anymore, it's not worth it, and instead get a current one with a decent amount of memory.

REQUEST v50s LM-V510N crossflashed and can't get into download mode

Hi everyone, I bought this phone working from second hand but the seller told me he tried to unlock the bootloader without success and the phone still loose the fingerprint sensor, so I decided to unlock the bootloader successfully following THIS thread and made a downgrade to Android 9 according to THIS other tutorial hopping to get it work again but I wasn't able to do it, so I decided to just use LGUP to install the same Android 12 that I had but the problem started at this point because once the KDZ was installed successfully, the deviced got a bootloop but I still was able to get into EDL, Fastboot and Download Mode, so I tried the steps from THIS other thread to unbrick it but it got even worse at this point, I flashed all the abl, xbl, etc. partitions and the "rawprograme files" via QFIL and then the phone won't even gave any life signals. I contacted someone that some months ago had the same problem and he told me that I could get into EDL by short pining the test point on the motherboard, which actually worked, so I extracted the KDZ Android 9 rom that I flashed in the first place to get the original abl, xbl, etc. partitions that I crossflashed from a v50 (Which I downloaded from the corresponding thread for unbrick), in other words I flashed the same partitions with the correct v50s files instead other model ones. So now this is where I'm right now, the phone don't turns on at all but when I connect it to the PC it gets recognized as LGE Android Platform USB Serial Port (COM11) and the buttons combinations don't work at all, so still can't get into Download mode by any method or even turn off the device, but I still can disconnect the battery and short pin the Qualcomm 9008 mode to use QFIL.
Would someone please be so kind of telling me how could I recover the Download Mode to use the COM4 and COM5 ports to flash the phone via LGUP?. According to THIS other thread, I could get the correct XML "rawprograme files" for my device (which I crossflashed with the v50) from a KDZ using some tools and Python, but I have to be honest: I DON'T KNOW HOW, even with the step by step tutorial.
At this point I think this would be the right step, to flash all the original files for my model and get the Download Mode back to be able to flash the KDZ rom via LGUP and update via OTA to Android 12 again to avoid the bootloop problem.
try to reflash(QFIL method) modified abl should get the download mode back
darrelama said:
try to reflash(QFIL method) modified abl should get the download mode back
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Click to collapse
Thanks for replying, but I have some questions:
1. The abl file you mean is the engineering one? And...
2. Would you be so kind of telling me how to flash via QFIL? I've seen that it's possible but as far as I know, I need a specific type of rom files to do it, and I don't know how to convert a KDZ or where to download a QFIL ROM.
Thanks!
iMarzateD said:
Thanks for replying, but I have some questions:
1. The abl file you mean is the engineering one? And...
2. Would you be so kind of telling me how to flash via QFIL? I've seen that it's possible but as far as I know, I need a specific type of rom files to do it, and I don't know how to convert a KDZ or where to download a QFIL ROM.
Thanks!
Click to expand...
Click to collapse
yes, engineering one mentioned here (THIS)
QFIL>Tools > Partition Manager
read abl_a and abl_b to backup then load abl engineering file to both
basically the same steps up to the following:
"Go back to Partition Manager and right click on abl_a again then select Manage Partition Data, then Select Load and choose the abl engineering file.
Do the same for abl_b."
then try download mode
darrelama said:
yes, engineering one mentioned here (THIS)
QFIL>Tools > Partition Manager
read abl_a and abl_b to backup then load abl engineering file to both
basically the same steps up to the following:
"Go back to Partition Manager and right click on abl_a again then select Manage Partition Data, then Select Load and choose the abl engineering file.
Do the same for abl_b."
then try download mode
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Click to collapse
Hello again, already tried flashing the engineering abl but I still can't get into download mode. The phone keeps off the whole time and by plugging in the USB cable, no matter what button combination, the PC always recognizes it as the same LGE Android Patform USB Serial Port (COM11), the only other state of the device is the Qualcomm 9008 by pinning the motherboard. This specific COM11 state never was able to flash anything by PC, I don't know what actual mode is, but when I was able to set the devide in Download Mode the PC always showed 2 devices in the Device Manager, the COM5 and the COM4, that way I knew I was able to use the LGUP to flash. I'm thinking that I'm not setting the phone on the correct state to flash by any method, but since the buttons seems not to work, I don't know how could I do it.
While on this mode "LGE Android Patform USB Serial Port (COM11)", try to hold both power and vol- for some seconds until the "LGE Android Patform USB Serial Port (COM11)" disappear from your PC device manager and immediately release both and now hold vol+ button to get into download mode.
You can do it while on the 9008 mode too though.
Maybe that can help.
I have LUNs backup for v50s but I can't upload it due to my internet plan quota limit.
ardian1899 said:
While on this mode "LGE Android Patform USB Serial Port (COM11)", try to hold both power and vol- for some seconds until the "LGE Android Patform USB Serial Port (COM11)" disappear from your PC device manager and immediately release both and now hold vol+ button to get into download mode.
You can do it while on the 9008 mode too though.
Maybe that can help.
I have LUNs backup for v50s but I can't upload it due to my internet plan quota limit.
Click to expand...
Click to collapse
Thanks, I'll try that for sure to see if I can get into the Download Mode or something. I would appreciate so much if you could share your backup, since I think I could restore the whole firmware with it, but I don't have any experience on the "LUNs" tho. I'm any case, I don't have too much time every week to give it a try, so I hope tomorrow I could test the combo you say.

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