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Hello hello,
I unlocked bootloader, installed TWRP 2.8.7.0 (adb -> fastboot method) and then I flashed SuperSU 2.46 zip. After reboot from TWRP my phone stuck.
I can't access TWRP or i don't know how to…
System isn't starting BUT sometimes after few minutes of seeing LG logo i see standard wallpaper and suddenly animation freezes. That's all.
When i go to recovery mode (voldown+power, release power and press power again) I can "do" factory reset. I choose 2xYES and i see green android. Then phone is restarting but i should enter to TWRP, right?
I tried to flash stock system (kdz, tot, dz) via:
- LG Flash Tool 2014
- LG Flash Tool 1.8.6.527
- LGUP
- LG Bridge
but nothing…
My phone PID and IMEI is null :/ (and "CUMSS" to :?)
I tried fix that with QPST (2 different versions) but in device manager my phone is only detected as COM port. No "Android Device". I can't read and write anything…
adb isn't working
I tried all USB 2.0 ports, different drivers, roms (even not for 815), dlls.
I fought 3 days and still have brick, not smartphone
I have only download mode working.
I can send commands to com port (Send_Command.exe) but sometimes nothing happen, sometimes i see "fail" after sent command.
Any ideas? Can I install recovery through download mode? Or maybe somebody know how to send files to phone in download mode but without adb?
I had stock rom MM V20L. What else you need to know?
Thanks for any suggestions, sorry for chaos in post and my english.
After trying different roms in different programs with 3 versions of dlls and different drivers…
I found solution: just reinstalled .NET Framework and then finally i flashed by LGUP (refurbish, v20L, kdz, dll 0.0.3.23)!
Welcome back H815
2 0 said:
After trying different roms in different programs with 3 versions of dlls and different drivers…
I found solution: just reinstalled .NET Framework and then finally i flashed by LGUP (refurbish, v20L, kdz, dll 0.0.3.23)!
Welcome back H815
Click to expand...
Click to collapse
where did you founf v20L kdz i need it because my phone wont flash any kdz i think its to prevent downgrades
https://lg-firmwares.com/lg-h815-firmwares/
Try some from skdubg's link. This is probable the same as mine
PLS Europe PL/Poland H81520l_00_0928.kdz 1.68 G 2016-11-25
Click to expand...
Click to collapse
download-file/?fileId=4325 I can't post links
This is MD5 of my file 8f685baf42869c50ec5f1b7770aa3957 *H81520l_00_0928.kdz
If you still can't flash then i will upload my kdz somewhere. GL
LG G4 Model F500L Stuck on download mode After Downgrade
Hi
i have a problem with my LG G4 Model F500L i try to downgrade from Marsmallow to Lolilpop By Flashing with LGUP Tool when i flash it. it error at 16% boot fail. So i disconnect USB and pull out battery and when i turn on it stuck on download mode.. i have try to flash with any firmware and any LG Tools but it's still fail at writing boot step i had try with Optopus box but it's still fail at wrting boot fail what is the problem . i need help now.... i just bought my phone for a week. Thanks for your helping ....
Today something went wrong while flashing weekly LOS build and my LG G4 (H815 with v20P firmware) went into very fast bootloop: https://www.youtube.com/watch?v=9gm0dh6bLp4
In this state i wasn't able to enter recovery, nor fastboot, nor download mode. Only IMEI screen (Vol Up + Vol Down I believe) was accessible which was no use.
Here are the steps which got me out of troubles:
A) Verify that you have LGUP installed and have proper 8994.dll version for your device.
Different versions of FW use different libraries which results in errors during flashing.
Steps:
1) Install LGUP with this guide https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
2) Get the right DLL. You can try this one:
Abandoned War Place said:
FIX REFUBRISH/DOWNGRADE ETC STUCK AT 16% DOWNLOAD MODE UNABLE TO GET BACK TO STOCK
error 0x2000 invalid command response Has Been FixeD WITH THE LASTEST DLL FILE
FILE INCLUDE (DLL+PATCH_DLL+SETUP LGUP+DRIVER) package
Please Read The *READ ME FILE FOR THE RIGHT INSTALLATION WITHOUT GETTING ANY PROBLEM :
Link Easy To Download No Ads Bulllsh*t.................. :
https://drive.google.com/file/d/0B_yWw6RLoA-gdTMtZFczMUhQOHM/view?usp=sharing
Click to expand...
Click to collapse
...or extract it directly from KDZ file with extractor https://forum.xda-developers.com/showthread.php?t=2600575.
You need to extract it from FW version that your phone is already running, not from the one you are about to flash! (when flashing from v20d to v20p you need v20d version, but when reflashing v20p FW you need the v20p DLL)
3) Navigate to LGUP install folder (default "C:\Program Files (x86)\LG Electronics\LGUP")
4) Overwrite the old DLL located in "model\8994" folder version with new one in
I don't know the exact compatibility, or how many different DLL versions are out there. Hopefully it doesn't brick the device even more when wrong version is used, it just doesn't work.
B) Write h815 image to sdcard as mentioned here:
leptdre said:
Hi guys,
i came up with a temporary to unbrick LG G4 H815 , you just need a 32 GB SD card ( i used Sandisk 10 class) , the dump that i will link , and Win32 disk Imager, the SD card must low level formatted.
1- download this dump
http://www.4shared.com/rar/NzSqsBzib...230737_00.html
2- put the SD card in the PC and chose the dump file and write ( run as admin ):
Click to expand...
Click to collapse
It worked for me with just 8GB one. Be aware that the image written to SD have like 20 partitions so windows might go crazy.
C) Follow these steps:
jam1445 said:
3. One the Write Completes. Eject Card and insert in your LG G4 H811. Press Volume Up Button while connecting the USB Cable.
4. There you go, it will open the download mode.
Click to expand...
Click to collapse
D) At this moment my G4 finally entered Download mode
I was able to reflash KDZ using the usual procedure (select UPGRADE, find a KDZ file, restart LGUP, select REFURBRISH and START). Initially I got 0x2000 error at approximately 16% (boot displayed as status) that was caused by old version of 8994.dll library.
E) Back to stock
Now you should have stock H815 again so lets flash LOS back as usual
Kudos to OPs: @bullghost , @shakeyabooti , @leptdre , @jam1445 and other posters on G4 section of XDA!
Hope this helps someone!
Good job. If your using this and you're gonna buy a SDCard on purpose, be aware that this fix might not work on your device. Ehehe
@Jirrick im getting the same error on LGUP where do i find a newer version of the dll?
inso420 said:
@Jirrick im getting the same error on LGUP where do i find a newer version of the dll?
Click to expand...
Click to collapse
are these what you looking for.?
https://forum.xda-developers.com/showpost.php?p=73586554&postcount=921
VS986 Stuck on Download Mode
Jirrick said:
Today something went wrong while flashing weekly LOS build and my LG G4 (H815 with v20P firmware) went into very fast bootloop: https://www.youtube.com/watch?v=9gm0dh6bLp4
In this state i wasn't able to enter recovery, nor fastboot, nor download mode. Only IMEI screen (Vol Up + Vol Down I believe) was accessible which was no use.
Here are the steps which got me out of troubles:
A) Verify that you have LGUP installed and have proper 8994.dll version for your device.
Different versions of FW use different libraries which results in errors during flashing.
Steps:
1) Install LGUP with this guide https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
2) Get the right DLL. You can try this one:
...or extract it directly from KDZ file with extractor https://forum.xda-developers.com/showthread.php?t=2600575.
You need to extract it from FW version that your phone is already running, not from the one you are about to flash! (when flashing from v20d to v20p you need v20d version, but when reflashing v20p FW you need the v20p DLL)
3) Navigate to LGUP install folder (default "C:\Program Files (x86)\LG Electronics\LGUP")
4) Overwrite the old DLL located in "model\8994" folder version with new one in
I don't know the exact compatibility, or how many different DLL versions are out there. Hopefully it doesn't brick the device even more when wrong version is used, it just doesn't work.
B) Write h815 image to sdcard as mentioned here:
It worked for me with just 8GB one. Be aware that the image written to SD have like 20 partitions so windows might go crazy.
C) Follow these steps:
D) At this moment my G4 finally entered Download mode
I was able to reflash KDZ using the usual procedure (select UPGRADE, find a KDZ file, restart LGUP, select REFURBRISH and START). Initially I got 0x2000 error at approximately 16% (boot displayed as status) that was caused by old version of 8994.dll library.
E) Back to stock
Now you should have stock H815 again so lets flash LOS back as usual
Kudos to OPs: @bullghost , @shakeyabooti , @leptdre , @jam1445 and other posters on G4 section of XDA!
Hope this helps someone!
Click to expand...
Click to collapse
I just did all your steps for my VS986 , and I got 2 G4 Verizon's back up and working , Thank you so much.
---------- Post added at 10:54 AM ---------- Previous post was at 10:53 AM ----------
I just did all your steps for my VS986 , and I got 2 G4 Verizon's back up and working , Thank you so much.
I'm using a 16gb microsd, but however I try to image it (exfat, fat32 filesystems, different win32imager versions) also have tried different cables, but it still doesn't show any sign of life. I bricked it exactly the same way as OP did. Does anyone have anything else I could try to fix this? Also does the battery charge when its on 9008 mode?
inteLzzz said:
I'm using a 16gb microsd, but however I try to image it (exfat, fat32 filesystems, different win32imager versions) also have tried different cables, but it still doesn't show any sign of life. I bricked it exactly the same way as OP did. Does anyone have anything else I could try to fix this? Also does the battery charge when its on 9008 mode?
Click to expand...
Click to collapse
Can you get at least to the IMEI Display mode (Vol UP and then quickly Vol DOWN, keep both pressed until it shows up)?
Jirrick said:
Can you get at least to the IMEI Display mode (Vol UP and then quickly Vol DOWN, keep both pressed until it shows up)?
Click to expand...
Click to collapse
No could it be caused by low battery? I remember it being like 30% when I bricked it, and does it charge under 9008 mode?
Sorry to hear that. I'm afraid this is beyond my knowledge if it wont even enter the IMEI screen. I suppose you can leave it bootlooping in charger over night and then try in the morning?
Jirrick said:
Sorry to hear that. I'm afraid this is beyond my knowledge if it wont even enter the IMEI screen. I suppose you can leave it bootlooping in charger over night and then try in the morning?
Click to expand...
Click to collapse
It does not bootloop, straight up dead. Just shows 9008 forever on the pc, I left it for like 2 hours like that yesterday. I'll leave it overnight today and if not I'll hack up a direct 5v 1a charger to charge the battery directly. If both don't work i'll probably flash LS991 files in QFIL and use it as a tablet afterwards.. damn i got this phone not even 2 weeks ago perfect condition and all. Will not buy any more damn LG devices.
Oh, I thought your phone was rapidly bootlooping like mine did. Sounds like the person who sold it to you was aware that the phone is on last legs (probably even baked the phone so it runs for few days more) and screwed you over. My next phone wont be LG either.
I will be simple, after installing this room
https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860
, I had a problem, ie I had more access to the recovery mode, then I wanted to install marshmallow but the phone remains blocked on
firmware update do not unplug the usb connection until the process is complete...
even when I remove the battery and then I turn on the phone it remains locked
Screen:
http://zupimages.net/viewer.php?id=17/37/z8va.jpg
i think you didn't install any Nougat bootloader and modem before flashing the rom
In TWRP wipe everything, then flash Nougat Bootloader and modem (this file) from TWRP:
https://www.androidfilehost.com/?fid=745425885120759121
and only after install Freedom Rom:
https://www.androidfilehost.com/?fid=745425885120759485
Check if it works
lk
lg g4
thank you for having answered, the problem I have no access to the TWRP, when I want to access the TWRP it makes a return to:
firmware update do not unplug the usb connection until the process is complete
thus impossible to install this link:
H815_29a_Modem_and_Bootloader_no_splash
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
Plug the USB Cable into the PC(not connected to the LG G4)
Have you PC Powered On and Logged in
Power Down the LG G4
Press and Hold the Volume Up Button on the LG G4
While Holding Volume Up, Plug the USB Cable into the LG G4
Continue Holding the Volume Up Button After You See ‘Download Mode’
Let Go of the Volume Up Button When You See the ‘Firmware Update’ Screen on the G4
Click to expand...
Click to collapse
5) and following the indication you need from this post
TO DO A FULL WIPE AND INSTALL MM
1) Open the LGUP on your computer.
2) FILE PATH point it towards the MM KDZ (LgUP will see only .tot, so when you browse and search your .kdz pay attention to change in the menu .tot to *.* to see everyfile you have)
3) After you load the .kdz now shut down LGUP!
4) Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section.
5) Select REFURBISH and make sure BIN file is ticked. Press Start. Make cup of tea and be patient
Click to expand...
Click to collapse
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
I have not been able to download the file, every time I have this error message that appears:
Download interrupted
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse
I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Gigio755 said:
Ok try with LgUP
1) First install Lg Bridge (for LG usb driver) HERE
2) Then install LG UP HERE (both LGUP_Install_Ver_1_14_3.msi and then LGUP_8994_DLL_Ver_0_0_3_23.msi)
3) After download THIS and copy these 2 .dll here C:\Program Files (x86)\LG Electronics\LGUP\model\8994
Download a .kdz LG G4 firmware like this 20d HERE
4) GO in Download mode with your G4
5) and following the indication you need from this post
you should able to install a clean stock 20d firmware on your G4 (i hope eheheheh)
ps: you will lose your root and TWRP, but after you could install them again
Click to expand...
Click to collapse
wesqz said:
I have not been able to download the file (H81520D_00_0115) , every time I have this error message that appears:
Download interrupted
Click to expand...
Click to collapse
it works...
try the link for the 20g HERE
Robert_1968_ said:
I have the exact same issue, tried the above but lgup wil stuck at 11 procent with an 0x2000 error message "Invalid command response"
I have tried to flash the 20d version a couple of times but no luck with that so I tried the 10b version still no luck and ending up with the same error. So I decided to give it another try with H81520p_00_0314.kdz and guess what, it flashed and booted up and installing apps now.
Click to expand...
Click to collapse
good! can you link please the 20p? peraphs the guy above needs it
Gigio755 said:
it works...
try the link for the 20g HERE
good! can you link please the 20p? peraphs the guy above needs it
Click to expand...
Click to collapse
http://lg-kdz.com/?dir=LG G4/H815
thank you my phone is operational
Robert_1968_ said:
http://lg-kdz.com/?dir=LG G4/H815
Click to expand...
Click to collapse
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Here is:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Click on link: 1) Firmware Files - Click HERE!
Rmegaxx said:
do you still have the KDZ file? i cannot find the H815 20p KDZ file
Click to expand...
Click to collapse
Maybe a bit late, but I haven't been around on xda for a while.
https://lg-firmwares.com/files-update-2017-03-30/
here you fiund the kdz if you still need it.
sorry for the late response
Hey guys,
I'm currently stuck in a fastboot loop after trying to install Magisk after flashing the Arrow ROM. I believe I messed up when choosing between boot_a and boot_b and flashing the patched img via QFIL. I initally patched boot_a, but when that didn't work I rebooted and patched boot_b. I did this because when I installed Arrow the instructions asked me to select the device slot that was inactive. I thought this meant it was swapping my device slot from A to B, but I probably got that very wrong. I did go into EDL mode and flash my original boot_a and boot_b in hopes it would reverse my mistake, but that did not work.
When I attempt booting the TWRP zip from the lineage guide archive I get this error "failed to load/authenticate boot image". I'm assuming this is because it wants an .img file and not a zip. If I try flashing the same zip file I get this error "Cannot flash this partition in unlocked state".
I did make a backup of all partitions via TWRP before this, but I'm unsure how I'd go about restoring everything. I do have access to EDL mode.
Any help is appreciated. This isn't a primary device though, so if it's bricked I'm not going to be that upset over it. Just something I wanted to try for fun. Haven't rooted a device in years. The G8 was a bit more difficult than I recall, so I'm sure I made a mistake somewhere.
Update 1
I flashed the ABL enginnering file and have some progress. Now fastboot shows my Active A/B Slot. It is set to B now, it was A originally, which I guess confirms that the Arrow OS instructions did switch from A to B. Maybe patching both through Magisk broke the boot image? If I'm understanding this correctly.
Update 2
While in fastboot (Phone was still looping) I entered the following command to change from Active Slot B to A, "fastboot --set-active=a". I've read this could potentially brick your device, but since my device was originally set to A and it was a brick at the moment already I took the risk. Booted into the recovery mode and selected factory reset. It took about five minutes, but I'm now back to the setup screen in the OS. Glad to be back to this point. Now I just need to figure out how to get Magisk Root working without repeating this process.
Update 3
Almost forgot to boot back into EDL, load up QFIL and push the original abl_a and abl_b files back to your phone. Otherwise you won't have any touch input.
Update 4
I seemed to have messed it up again. I tried locking the bootloader back, so I'd stop getting the error message upon bootup. I've decided there is no benefit to unlocking the bootloader and rooting for my purposes. Just wanted to try it out. After doing so I started getting an error stating the device failed security checks, so I pushed the abl engineering file back to the device to unlock it. After I went to push the stock abl_a and b files and decided to go ahead and push the stock boot_a and boot_b to make sure everything was back to normal. Which I didn't think was a big deal, but now I can't boot into the phone without using the abl engineering file.
At the moment I'm unsure what to do. If I push the abl_a and b stock files the phone goes into a fastboot bootloop again. Can't run any commands that way either. I have to boot the abl enginnering file to do so, which in turn allows me to get into the OS but disables touch input. So at the moment I think it's bricked.
If I could find a TWRP image file to flash with the abl enginnering file I could possibly perform a restore from the original backups I made, but I'm unsure where to find one since TWRP doesn't really exist for the G8. I just have a zip file.
Overall not too much of a loss, but the G8 was a great DAP. Hate to lose it. If anyone has any suggestions I'm all ears.
Absolutely the same issue. I wrote about it in arrowOS thread . But I did not try to flash engineering abl. I'm begging you, if your will find solution, please write here about it. I am also notice you here, if resolve this issue.
Jimmynidas said:
Hey guys,
I'm currently stuck in a fastboot loop after trying to install Magisk after flashing the Arrow ROM. I believe I messed up when choosing between boot_a and boot_b and flashing the patched img via QFIL. I initally patched boot_a, but when that didn't work I rebooted and patched boot_b. I did this because when I installed Arrow the instructions asked me to select the device slot that was inactive. I thought this meant it was swapping my device slot from A to B, but I probably got that very wrong. I did go into EDL mode and flash my original boot_a and boot_b in hopes it would reverse my mistake, but that did not work.
When I attempt booting the TWRP zip from the lineage guide archive I get this error "failed to load/authenticate boot image". I'm assuming this is because it wants an .img file and not a zip. If I try flashing the same zip file I get this error "Cannot flash this partition in unlocked state".
I did make a backup of all partitions via TWRP before this, but I'm unsure how I'd go about restoring everything. I do have access to EDL mode.
Any help is appreciated. This isn't a primary device though, so if it's bricked I'm not going to be that upset over it. Just something I wanted to try for fun. Haven't rooted a device in years. The G8 was a bit more difficult than I recall, so I'm sure I made a mistake somewhere.
Update 1
I flashed the ABL enginnering file and have some progress. Now fastboot shows my Active A/B Slot. It is set to B now, it was A originally, which I guess confirms that the Arrow OS instructions did switch from A to B. Maybe patching both through Magisk broke the boot image? If I'm understanding this correctly.
Update 2
While in fastboot (Phone was still looping) I entered the following command to change from Active Slot B to A, "fastboot --set-active=a". I've read this could potentially brick your device, but since my device was originally set to A and it was a brick at the moment already I took the risk. Booted into the recovery mode and selected factory reset. It took about five minutes, but I'm now back to the setup screen in the OS. Glad to be back to this point. Now I just need to figure out how to get Magisk Root working without repeating this process.
Update 3
Almost forgot to boot back into EDL, load up QFIL and push the original abl_a and abl_b files back to your phone. Otherwise you won't have any touch input.
Update 4
I seemed to have messed it up again. I tried locking the bootloader back, so I'd stop getting the error message upon bootup. I've decided there is no benefit to unlocking the bootloader and rooting for my purposes. Just wanted to try it out. After doing so I started getting an error stating the device failed security checks, so I pushed the abl engineering file back to the device to unlock it. After I went to push the stock abl_a and b files and decided to go ahead and push the stock boot_a and boot_b to make sure everything was back to normal. Which I didn't think was a big deal, but now I can't boot into the phone without using the abl engineering file.
At the moment I'm unsure what to do. If I push the abl_a and b stock files the phone goes into a fastboot bootloop again. Can't run any commands that way either. I have to boot the abl enginnering file to do so, which in turn allows me to get into the OS but disables touch input. So at the moment I think it's bricked.
If I could find a TWRP image file to flash with the abl enginnering file I could possibly perform a restore from the original backups I made, but I'm unsure where to find one since TWRP doesn't really exist for the G8. I just have a zip file.
Overall not too much of a loss, but the G8 was a great DAP. Hate to lose it. If anyone has any suggestions I'm all ears.
Click to expand...
Click to collapse
It's a little confusing to try to determine where you are with this, but I can tell you that for the G8, to get twrp 'injected' into the boot partition, you use magisk and flash the zip, you don't 'boot' it.
So to accomplish that, you need **your specific variant** boot partition with magisk injected into it. You can do that yourself by using the magisk manager, or by simply asking if anyone has that available.
But, you'd then have twrp, and you could flash backups, but, from what you say, it's hard to determine if that's going to help.
If you have one of the variants that has the kdz available, I'd suggest simply use LGUP and flash your kdz, and start from scratch.
Lastly, re locking the bootloader. Numerous people make this mistake, but you can't re-lock it unless you're on pure stock (no modifications at all). If you try to re-lock it and yer not on a freshly flashed stock kdz, you can end with 'edl mode only' device.
cheers
AsItLies said:
It's a little confusing to try to determine where you are with this, but I can tell you that for the G8, to get twrp 'injected' into the boot partition, you use magisk and flash the zip, you don't 'boot' it.
So to accomplish that, you need **your specific variant** boot partition with magisk injected into it. You can do that yourself by using the magisk manager, or by simply asking if anyone has that available.
But, you'd then have twrp, and you could flash backups, but, from what you say, it's hard to determine if that's going to help.
If you have one of the variants that has the kdz available, I'd suggest simply use LGUP and flash your kdz, and start from scratch.
Lastly, re locking the bootloader. Numerous people make this mistake, but you can't re-lock it unless you're on pure stock (no modifications at all). If you try to re-lock it and yer not on a freshly flashed stock kdz, you can end with 'edl mode only' device.
cheers
Click to expand...
Click to collapse
As of right now I have a kdz for my phone, I have a Verizon model. Where I'm having trouble with now is I can't get the phone into Download mode. When I do it says my device failed a routine safety check and then boots to fastboot mode.
I also have a couple patched magisk boot partitions from the initial install. I loaded them via QFIL and I can now get to the Verizon bootup screen, but it gets stuck in a loop.
Update:
I got into Download mode by going into the system recovery and doing a factory reset. Now I need to figure out LG UP.
Last Update (Hopefully) Lol:
I installed the kdz using LGUP and it seems to have worked! I'm back in the stock OS and touch input is working. I'm relieved. I hate leaving things like this in a broken state if it's possible to fix it.
Thank you @AsItLies for responding and helping out!
Pukkaras said:
Absolutely the same issue. I wrote about it in arrowOS thread . But I did not try to flash engineering abl. I'm begging you, if your will find solution, please write here about it. I am also notice you here, if resolve this issue.
Click to expand...
Click to collapse
What I did was put the phone back into EDL mode and open QFIL. I loaded my original magisk patched .img file. This got me out of the Fastboot loop. Then after holding volume down and power to reset the phone out of EDL mode I pressed volume down and power again to boot into the modified system recovery. This took a few attempts as it's really finicky.
Once I was in the modified system recovery I performed a factory reset. This seems to have resolved my "Failed routine security check" error when trying to access Download mode. Now that I was no longer getting that error I booted backup into the modified system recovery and hit power down. Make sure your phone is not plugged into your PC at this time or else it will just boot back up.
Once your phone is off and unplugged, hold volume up and then plug the phone back into the PC. Hold volume up until download mode starts. Now you can go go about installing the kdz of your phone.
Now I'm not sure what model your phone is, but since mine was Verizon I found a Verizon KDZ. Then downloaded LGUP. There are a lot of different variations of LGUP, but for my G8 I needed at least 1.16. So I download the Lab version (Probably not right. It scaled very small, but hey, it worked).
You also need to download the DLL for your phone and place it in your Program FIles (x86)/LG Electronics/LG UP/Model/Common folder. I did have to create the Common folder for some reason, but after I did everything worked fine. Make sure to rename the DLL "lgup_common" (without quotes).
You'll also need the LG Drivers for your phone as well, if you haven't installed them already.
I'll post a couple links for you below of where I got this information or files from. I hope this all helps. If you have any questions just let me know. I'm no expert, but I'll do my best to help.
Links:
This link has the DLL, LG Drivers, and a link to LG UP
G820UM20i:Verizon LG G8 ThinQ Firmware Update with December 2020 security Patch
G820UM20i:Verizon LG G8 ThinQ Firmware Update with December 2020 security Patch - Firmware Update
www.mylgphones.com
Link to KDZ: https://lg-firmwares.com/lg-lmg820um-firmwares/
If you have ATT or Sprint I do not believe there are KDZs available.
Please let me know if you have any questions or if I need to clarify anything.
Woo, thats great, that you resolve your problem! I will try to do all like in your manual.
imei.guru said, that for my imei i have :
Model: LGABCD
Region: ABC
LG LMG820N
With such region i did not find kdz at lg-firmwares.com
When my smartphone boot up (when it was worked) i see LG U+ when booting.
Also it was trying to set korean language. What do you think, which kdz should I take? And what version of android?
also solved my problems - here i described here how https://forum.xda-developers.com/t/...lg-g8-alphaplus-alphalm.4354847/post-86038237
Jimmynidas said:
What I did was put the phone back into EDL mode and open QFIL. I loaded my original magisk patched .img file. This got me out of the Fastboot loop. Then after holding volume down and power to reset the phone out of EDL mode I pressed volume down and power again to boot into the modified system recovery. This took a few attempts as it's really finicky.
Once I was in the modified system recovery I performed a factory reset. This seems to have resolved my "Failed routine security check" error when trying to access Download mode. Now that I was no longer getting that error I booted backup into the modified system recovery and hit power down. Make sure your phone is not plugged into your PC at this time or else it will just boot back up.
Once your phone is off and unplugged, hold volume up and then plug the phone back into the PC. Hold volume up until download mode starts. Now you can go go about installing the kdz of your phone.
Now I'm not sure what model your phone is, but since mine was Verizon I found a Verizon KDZ. Then downloaded LGUP. There are a lot of different variations of LGUP, but for my G8 I needed at least 1.16. So I download the Lab version (Probably not right. It scaled very small, but hey, it worked).
You also need to download the DLL for your phone and place it in your Program FIles (x86)/LG Electronics/LG UP/Model/Common folder. I did have to create the Common folder for some reason, but after I did everything worked fine. Make sure to rename the DLL "lgup_common" (without quotes).
You'll also need the LG Drivers for your phone as well, if you haven't installed them already.
I'll post a couple links for you below of where I got this information or files from. I hope this all helps. If you have any questions just let me know. I'm no expert, but I'll do my best to help.
Links:
This link has the DLL, LG Drivers, and a link to LG UP
G820UM20i:Verizon LG G8 ThinQ Firmware Update with December 2020 security Patch
G820UM20i:Verizon LG G8 ThinQ Firmware Update with December 2020 security Patch - Firmware Update
www.mylgphones.com
Link to KDZ: https://lg-firmwares.com/lg-lmg820um-firmwares/
If you have ATT or Sprint I do not believe there are KDZs available.
Please let me know if you have any questions or if I need to clarify anything.
Click to expand...
Click to collapse
Can you share the LGUP 1.16 that worked for you. The link you provided has LGUP 1.16 [Orignal from LG] – No patched – Lab Version and that does not work or not even opening after installation. Thanks.
indrajyoti_indra said:
Can you share the LGUP 1.16 that worked for you. The link you provided has LGUP 1.16 [Orignal from LG] – No patched – Lab Version and that does not work or not even opening after installation. Thanks.
Click to expand...
Click to collapse
I just tried installing it from scratch and other than it asking for the LG driver it launched on my end. Are you going into your start menu and opening LGUP?
Jimmynidas said:
I just tried installing it from scratch and other than it asking for the LG driver it launched on my end. Are you going into your start menu and opening LGUP?
Click to expand...
Click to collapse
I find out that Windows 11 is the problem. Something to do with stupid driver signature. Used Windows 10 and that worked. Thanks.
Hello everyone, I'm new on the forum. Sorry to bother you, I've been reading most of the threads about the G8 thinq. My problem is that I can't extract LG's kdz firmware properly. I already tried with the Lg extract, with the CMD, with Power Shill. None manage to extract the '.DZ' Please share me a rom that is already extracted, thanks in advance.
CloudStrife97 said:
Hello everyone, I'm new on the forum. Sorry to bother you, I've been reading most of the threads about the G8 thinq. My problem is that I can't extract LG's kdz firmware properly. I already tried with the Lg extract, with the CMD, with Power Shill. None manage to extract the '.DZ' Please share me a rom that is already extracted, thanks in advance.
Click to expand...
Click to collapse
So a couple of things, the kdz extractor tools are plentiful, some work under windows and some under linux. I've used the linux version and it does work, no issues. The DZ file is basically the KDZ uncompressed. It's a large single file.
The DZ is then further broken down by the utility into various forms due to the command you use, you can get partition images and chunks of images etc etc.
2nd, you ask for a 'rom that is already extracted'? That's a lot of images, about 5 gig worth, what **exactly** are you trying to do? Maybe you only need a few files? Maybe you need files from a specific rom version? Maybe you need a kdz rom that doesn't even exist? Like at&t and sprint?
you might want to fill in some details for anyone to help.
AsItLies said:
So a couple of things, the kdz extractor tools are plentiful, some work under windows and some under linux. I've used the linux version and it does work, no issues. The DZ file is basically the KDZ uncompressed. It's a large single file.
The DZ is then further broken down by the utility into various forms due to the command you use, you can get partition images and chunks of images etc etc.
2nd, you ask for a 'rom that is already extracted'? That's a lot of images, about 5 gig worth, what **exactly** are you trying to do? Maybe you only need a few files? Maybe you need files from a specific rom version? Maybe you need a kdz rom that doesn't even exist? Like at&t and sprint?
you might want to fill in some details for anyone to help.
Click to expand...
Click to collapse
Hello, thanks for answering. I will begin to tell my story. I have an Lg G8 ThinQ Sprint with Android 10. It is network unlocked because I can use it here in Honduras. I did the Crossflash tutorial ( https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ )
While using the QFIL I deleted flash from one of the 7 partitions the tutorial says. My phone no longer exits EDL mode ( Qualcomm HS-USB QDloader 9008 (COM5)) So I went to this tutorial: (https://forum.xda-developers.com/t/lg-g8-stuck-in-qualcomm-hs-usm-qdloader-9008.4050197/).
I followed the steps to load the ¨Lun¨, I did it in PowerShell, because in CMD it didn't work for me. Apparently the ¨Lun¨ were installed well. Now the problem is that I can't install the necessary partitions, because I can't unzip the .DZ ROM
Help, what do I do? My cell phone is only in Qualcomm HS-USB QDloader 9008 mode, it does not go to download mode
CloudStrife97 said:
Hello, thanks for answering. I will begin to tell my story. I have an Lg G8 ThinQ Sprint with Android 10. It is network unlocked because I can use it here in Honduras. I did the Crossflash tutorial ( https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/ )
While using the QFIL I deleted flash from one of the 7 partitions the tutorial says. My phone no longer exits EDL mode ( Qualcomm HS-USB QDloader 9008 (COM5)) So I went to this tutorial: (https://forum.xda-developers.com/t/lg-g8-stuck-in-qualcomm-hs-usm-qdloader-9008.4050197/).
I followed the steps to load the ¨Lun¨, I did it in PowerShell, because in CMD it didn't work for me. Apparently the ¨Lun¨ were installed well. Now the problem is that I can't install the necessary partitions, because I can't unzip the .DZ ROM
Help, what do I do? My cell phone is only in Qualcomm HS-USB QDloader 9008 mode, it does not go to download mode
Click to expand...
Click to collapse
So honestly I'm confused by where you are or what the situation is. But no matter.
This link is for the Lun4 partitions of sprint a10 backup. It has the rawprogram xml needed to flash it.
My understanding is that should be all you need to get LGUP to work. So flash that with qfil and then go directly to LGUP with the key combo.
Then, in lgup, do whatever you want, crossflash etc. Once you reinstall a kdz with lgup you should be back to the beginning and can start again.
good luck
AsItLies said:
So honestly I'm confused by where you are or what the situation is. But no matter.
This link is for the Lun4 partitions of sprint a10 backup. It has the rawprogram xml needed to flash it.
My understanding is that should be all you need to get LGUP to work. So flash that with qfil and then go directly to LGUP with the key combo.
Then, in lgup, do whatever you want, crossflash etc. Once you reinstall a kdz with lgup you should be back to the beginning and can start again.
good luck
Click to expand...
Click to collapse
Thanks for the files and information. I just did the flash in QFIL. look what it tells me.
What could be wrong with my cell phone? It no longer wants to enter power on or enter download mode.
The screenshots from 1 to 5 are those of the QFIL flash process.
Then see how is the partition manager. From screenshot 6 to 13.
Do you find any problem?
I still can access Download mode.
Thank you again for your dedication and availability to help me
Hmmm, wasn't sure if that would work or not. That rawprogram xml was created with bkerler edl utilities, I know it can be used to restore with those utilities but thought it would work with qfil, guess not.
seems your only other option would be to flash ea partition manually with qfil.
AsItLies said:
Hmmm, wasn't sure if that would work or not. That rawprogram xml was created with bkerler edl utilities, I know it can be used to restore with those utilities but thought it would work with qfil, guess not.
seems your only other option would be to flash ea partition manually with qfil.
Click to expand...
Click to collapse
ok i'll try it that way.
how can i use bkerler edl utilities to load the rawprogram xml ?
Hi, I also tried this tutorial:https://forum.xda-developers.com/t/tutorial-rescue-from-hard-brick.4351389/.
According to him, since my device is Sprint, I have to flash all partitions. You can successfully do part C. But I haven't been able to do part E yet because I don't have all those partitions.
AsItLiesshare me the full firmware backup so I can restore mine, please
CloudStrife97 said:
AsItLiesshare me the full firmware backup so I can restore mine, please
Click to expand...
Click to collapse
I don't have the full backup, sorry. Pretty sure if you look though someone has posted a link to it.
Keep in mind though, if you have chip erased your device, restoring a backup will not restore your imei, for that it will cost $ to pay someone with an octoplus box to do it.
AsItLies said:
So honestly I'm confused by where you are or what the situation is. But no matter.
This link is for the Lun4 partitions of sprint a10 backup. It has the rawprogram xml needed to flash it.
My understanding is that should be all you need to get LGUP to work. So flash that with qfil and then go directly to LGUP with the key combo.
Then, in lgup, do whatever you want, crossflash etc. Once you reinstall a kdz with lgup you should be back to the beginning and can start again.
good luck
Click to expand...
Click to collapse
Do you have an AT&T one?
PHANX0M said:
Do you have an AT&T one?
Click to expand...
Click to collapse
no
My device stuck in edl mode it's nothing show no download mode no restart no turn off only edl mode please help