Please help me restore back my original LGUP dump! (H910) - LG V20 Questions & Answers

I tried to use the dirtysanta method to root my H910. Here is what I did:
1. Because I have the April 2017 security patch, I used LGUP to load up an kdz that is on Dec 2016.
This step was successful. Everything worked as expected.
2. Then I followed the dirtysanta approach, and everything worked great. I got into TWRP and wiped stuff as instructed.
3. However, at the last step, when the instruction says to adb fastboot into recovery, instead of booting back into TWRP, the phone boot into strange screen with stripes, and after a while it will show me a "kernel crash!" screen with a lot of text.
Question - is there any way to get my phone back? I cannot get into TWRP, and there is no more ADB. I also tried LGUP but it lists my phone under "unknown" model and I cannot select it.
Please anyone help me. Thanks!

zhangla said:
I tried to use the dirtysanta method to root my H910. Here is what I did:
1. Because I have the April 2017 security patch, I used LGUP to load up an kdz that is on Dec 2016.
This step was successful. Everything worked as expected.
2. Then I followed the dirtysanta approach, and everything worked great. I got into TWRP and wiped stuff as instructed.
3. However, at the last step, when the instruction says to adb fastboot into recovery, instead of booting back into TWRP, the phone boot into strange screen with stripes, and after a while it will show me a "kernel crash!" screen with a lot of text.
Question - is there any way to get my phone back? I cannot get into TWRP, and there is no more ADB. I also tried LGUP but it lists my phone under "unknown" model and I cannot select it.
Please anyone help me. Thanks!
Click to expand...
Click to collapse
Obviously you did not do enough reading on the ds root process because then you'd know static on boot is normal and you would have read about the button combo to get into twrp. I suggest you do some more reading
Sent from my LG-H910 using XDA Labs

I admit I did not read the thread fully, because it has about 2000+ posts on several hundreds of pages...
I did read the OP's instructions very carefully, and followed it word by word.
Right now, I could get into fastboot and flash TWRP again. That can get me into TWRP but any ROM I flash (either stock based, or custom ROMs), the phone will simply just get back into the static stripes and eventually crash on kernel or modem.
Is this because I should not use H910 ROMs anymore, because the DS uses other models kernels? 996?

zhangla said:
I admit I did not read the thread fully, because it has about 2000+ posts on several hundreds of pages...
I did read the OP's instructions very carefully, and followed it word by word.
Right now, I could get into fastboot and flash TWRP again. That can get me into TWRP but any ROM I flash (either stock based, or custom ROMs), the phone will simply just get back into the static stripes and eventually crash on kernel or modem.
Is this because I should not use H910 ROMs anymore, because the DS uses other models kernels? 996?
Click to expand...
Click to collapse
Flash whatever rom you want/can and then after flash preferably the mk2000 kernel (your varient) right after initial flash of rom-then reboot. Static will vanish like tacos on fat Tuesday. You can then do whatever.

Mysticblaze347 said:
Flash whatever rom you want/can and then after flash preferably the mk2000 kernel (your varient) right after initial flash of rom-then reboot. Static will vanish like tacos on fat Tuesday. You can then do whatever.
Click to expand...
Click to collapse
My problem now is that I can no longer boot into TWRP anymore.... I had recovery-twrp-h910-2018-10-18.img flashed and worked fine, but after I flashed the H910 Oreo stock rom, vol- and power then power, yes and yes to factory reset, the phone just boots into statics then LG then statics then the initial setup wizard. No more TWRP.
Trying to use fastboot to flash TWRP again, but now my phone can only be seen by adb under MTP mode, not when it's in fastboot mode.
Any way to flash TWRP when I am in regular MTP mode (e.g. regular adb)?

zhangla said:
My problem now is that I can no longer boot into TWRP anymore.... I had recovery-twrp-h910-2018-10-18.img flashed and worked fine, but after I flashed the H910 Oreo stock rom, vol- and power then power, yes and yes to factory reset, the phone just boots into statics then LG then statics then the initial setup wizard. No more TWRP.
Trying to use fastboot to flash TWRP again, but now my phone can only be seen by adb under MTP mode, not when it's in fastboot mode.
Any way to flash TWRP when I am in regular MTP mode (e.g. regular adb)?
Click to expand...
Click to collapse
I believe that via adb you can type "push" then type your directed file area of located file (twrp). Double check with google search on how push files via adb
Yeah for some odd reason adb reads via mtp (or photo transfer) only for some reason.

Mysticblaze347 said:
I believe that via adb you can type "push" then type your directed file area of located file (twrp). Double check with google search on how push files via adb
Yeah for some odd reason adb reads via mtp (or photo transfer) only for some reason.
Click to expand...
Click to collapse
The push command is to send files to external SD card while in recovery mode. I did that once. I don't think it actually flashes anything...

zhangla said:
The push command is to send files to external SD card while in recovery mode. I did that once. I don't think it actually flashes anything...
Click to expand...
Click to collapse
Might just have to redo Dirty Santa again...I really dont know what else other than researching ADB commands.
Im assuming that you already tried manual boot in twrp as Cnjax stated. Look into those as well. Different models sometimes have different button combos.

@zhangla
You best slow down and do more reading
You made another mistake
I had recovery-twrp-h910-2018-10-18.img flashed and worked fine, but after I flashed the H910 Oreo stock rom
Click to expand...
Click to collapse
The Oreo stock rom is Stock and flashes Stock recovery and removed TWRP.
Their are two v20 rooted Oreo h910 roms
you needed to use those.
You now need to start over by flashing the h915 nougat kdz and following the root guide
https://r.tapatalk.com/shareLink?ur...share_tid=3664500&share_fid=3793&share_type=t
[ROOT] HOWTO: AT&T H910 up to v20g (FULLY TESTED)
Sent from my PH-1 using Tapatalk

Related

Download Mode Recovery on H918

After installing twrp using the one click root method, it restarted my V20 and I ended up in recovery mode (TWRP) and unable to boot into the OS. It seems I only have access to fastboot, download mode, and TWRP at this moment. I tried flashing the partitions with twrp, but twrp isn't realing my SD card for some odd reason, and I don't believe theres another way to move the file directly to the phone. I've been trying to work with "LG FlashTool" for hours, and keep getting the same error. Is there a reliable way to flash the OS through download mode? Thanks!
There is currently no way to flash those .tot images. What happens when you try to boot, where does it get stuck?
In TWRP you can connect to a PC and access the storage. Did you try moving the files that way?
slayerh4x said:
There is currently no way to flash those .tot images. What happens when you try to boot, where does it get stuck?
In TWRP you can connect to a PC and access the storage. Did you try moving the files that way?
Click to expand...
Click to collapse
I apologize for not checking my XDA notifications frequently enough.
I was able to copy over the .img system, boot, and recovery files to my internal storage when I was booted into TWRP then flashed them in TWRP.
Thanks for the help!
KingofPineCones said:
I apologize for not checking my XDA notifications frequently enough.
I was able to copy over the .img system, boot, and recovery files to my internal storage when I was booted into TWRP then flashed them in TWRP.
Thanks for the help!
Click to expand...
Click to collapse
I tried doing this and my system rebooted back into TWRP. Where did you get the files? Also did you ever get the encryption unsuccessful error? Whenever I install a system image or nandroid backup my phone reboots into TWRP.
crazyc78 said:
I tried doing this and my system rebooted back into TWRP. Where did you get the files? Also did you ever get the encryption unsuccessful error? Whenever I install a system image or nandroid backup my phone reboots into TWRP.
Click to expand...
Click to collapse
The encryption unsuccessful error was mentioned in the original TWRP form, you're just supposed to tap cancel and ignore it. It seems to happen every time you boot into TWRP. As for the .IMG files, I forgot where I got these but as soon as I find the post I'll be sure to give the creator credit. These worked perfectly for my H918.
Link to .zip file with the .img file-
https://drive.google.com/file/d/0B53iMlcsyyiKenAtT2k5STl0Umc/view?usp=drivesdk
(On mobile app or else I would've embedded it)
Boot into TWRP and push them through ADB into your device, then flash with TWRP. Make sure to flash system and recovery together, THEN REBOOT. If you flash system or recovery apart then reboot it might not work. I pushed them to /data/ and it worked for me. system.img is about 4GB if I remember correctly, so that one took a long time to push through ADB, about an hour and a half, just be prepared to wait a bit. Good luck!
KingofPineCones said:
The encryption unsuccessful error was mentioned in the original TWRP form, you're just supposed to tap cancel and ignore it. It seems to happen every time you boot into TWRP. As for the .IMG files, I forgot where I got these but as soon as I find the post I'll be sure to give the creator credit. These worked perfectly for my H918.
Link to .zip file with the .img file-
https://drive.google.com/file/d/0B53iMlcsyyiKenAtT2k5STl0Umc/view?usp=drivesdk
(On mobile app or else I would've embedded it)
Boot into TWRP and push them through ADB into your device, then flash with TWRP. Make sure to flash system and recovery together, THEN REBOOT. If you flash system or recovery apart then reboot it might not work. I pushed them to /data/ and it worked for me. system.img is about 4GB if I remember correctly, so that one took a long time to push through ADB, about an hour and a half, just be prepared to wait a bit. Good luck!
Click to expand...
Click to collapse
Thanks I appreciate the response, I was able to get my phone up and running by flashing a deodexed rom.
What are the commands to flash the stock system, boot image and recovery through fastboot? Is that what you used?
KingofPineCones said:
The encryption unsuccessful error was mentioned in the original TWRP form, you're just supposed to tap cancel and ignore it. It seems to happen every time you boot into TWRP. As for the .IMG files, I forgot where I got these but as soon as I find the post I'll be sure to give the creator credit. These worked perfectly for my H918.
Link to .zip file with the .img file-
https://drive.google.com/file/d/0B53iMlcsyyiKenAtT2k5STl0Umc/view?usp=drivesdk
(On mobile app or else I would've embedded it)
Boot into TWRP and push them through ADB into your device, then flash with TWRP. Make sure to flash system and recovery together, THEN REBOOT. If you flash system or recovery apart then reboot it might not work. I pushed them to /data/ and it worked for me. system.img is about 4GB if I remember correctly, so that one took a long time to push through ADB, about an hour and a half, just be prepared to wait a bit. Good luck!
Click to expand...
Click to collapse
So I downloaded this file you have in the reply... How can I flash the files in the zip through Fastboot? This currently is the only thing I can boot into to modify the system. The phone boots fine, but I cannot use ADB because it won't authorize the device. I have repeatedly tried killing the ADB server and restarting it, changed the USB ports to no avail... At this point, I cannot boot into TWRP even though it should be operational still.
andrewjt19 said:
So I downloaded this file you have in the reply... How can I flash the files in the zip through Fastboot? This currently is the only thing I can boot into to modify the system. The phone boots fine, but I cannot use ADB because it won't authorize the device. I have repeatedly tried killing the ADB server and restarting it, changed the USB ports to no avail... At this point, I cannot boot into TWRP even though it should be operational still.
Click to expand...
Click to collapse
Which TWRP version do you have? Is it RC8 or above? If its not then you are stuck until the TOT files can be used in LG UP or if we get a KDZ (Havent checked recently if a KDZ is available).
If you do there is a fail safe in TWRP (RC8 and above) that you boot to the LG factory reset and go through with it, TWRP does not execute the command and just boots to TWRP.
DarkestSpawn said:
Which TWRP version do you have? Is it RC8 or above? If its not then you are stuck until the TOT files can be used in LG UP or if we get a KDZ (Havent checked recently if a KDZ is available).
If you do there is a fail safe in TWRP (RC8 and above) that you boot to the LG factory reset and go through with it, TWRP does not execute the command and just boots to TWRP.
Click to expand...
Click to collapse
I'm running the latest version of TWRP not the RC8.
andrewjt19 said:
I'm running the latest version of TWRP not the RC8.
Click to expand...
Click to collapse
ONLY USE THIS METHOD IF YOU HAVE TWRP RC8 OR ABOVE INSTALLED!!!!! OTHERWISE YOU WILL ACTUALLY FACTORY RESET YOUR DEVICE!!!!!
While the device is powered off, press and hold Vol - and Power button. When you see the LG logo quickly release only the power button and re-press and hold the power button (Never let go of the Vol - button) This will boot you into the LG Factory reset screen. ONLY USE THIS METHOD IF YOU HAVE TWRP RC8 OR ABOVE INSTALLED!!!!! OTHERWISE YOU WILL ACTUALLY FACTORY RESET YOUR DEVICE!!!!! Choose yes to both options and you will be rebooted into TWRP. TWRP intercepts this command and ignores the factory reset part.
Will definitely give a shot. Thanks. I'll report back when I get to do it...
what are commands to flash the sys files

[VS995] Unresponsive touchscreen after dirtysanta, corrupt fastboot and recovery

After flashing dirtysanta successfully I wanted to move over to the magisk installation. Following the steps and attempting t use magisk I must have mucked something up very well.
after flashing the initial boot image and twrp from fastboot I hoped that it would fix these issues. Instead it seems to have corrupted fastboot. I did a kdz restore with reset hoping this would help but the touch screen still doesn't work and now I cannot setup the phone to allow adb. Booting from the system menu into usb-debugging mode just boots the phone normally
Currently I can boot into only into android but because I am stuck at the setup screen I can't connect through adb. I am not sure where to go from here.
The only thing that I can think of is getting a usb-otg adapter and connecting a mouse and attempting to allow adb by setting up the phone that way but I still cant flash anything from adb so I wouldn't know what to do from there. Does anybody have any suggestions?
Is there a way to install a boot image without fastboot?
I was very excited to start using this phone and this sucks. Any help would be appreciated
Do u have twrp at all? Some guys used a mouse and got threw the setup with it.
Sent from my LG-H918 using Tapatalk
I can't access twrp at all attempting all methods leads to a normal boot routine. It doesn't even go to the stock page where it asks to wipe data. Just LG logo, black screen (assuming it crashes and restarts), then regular boot
I have successfully restored touch functionality by reflashing multiple different kdz files over and over again.
This has not fixed my inability to enter fastboot. I can enter the default android recovery from the no command screen after using adb reboot recovery but any other command just restarts the phone. Rebooting into bootloader from the default recovery just restarts the phone. I am not sure where to go from here, really upset because any fix requires fastboot
tgtrottier said:
I can't access twrp at all attempting all methods leads to a normal boot routine. It doesn't even go to the stock page where it asks to wipe data. Just LG logo, black screen (assuming it crashes and restarts), then regular boot
Click to expand...
Click to collapse
I guess U didn't wait more than 30sec during the step 3, this is crucial.
---------- Post added at 05:09 PM ---------- Previous post was at 05:07 PM ----------
tgtrottier said:
I have successfully restored touch functionality by reflashing multiple different kdz files over and over again.
This has not fixed my inability to enter fastboot. I can enter the default android recovery from the no command screen after using adb reboot recovery but any other command just restarts the phone. Rebooting into bootloader from the default recovery just restarts the phone. I am not sure where to go from here, really upset because any fix requires fastboot
Click to expand...
Click to collapse
Get into download mode and Use LG bridge to upgrade
hoi_lai said:
I guess U didn't wait more than 30sec during the step 3, this is crucial.
Is this afternoon running step 3 and waiting for boot? Because when I did it I waited around 30 min on the Verizon boot screen before pulling the battery to reboot.
In reference to LG bridge. Is this different than LGUP?
Click to expand...
Click to collapse
tgtrottier said:
hoi_lai said:
I guess U didn't wait more than 30sec during the step 3, this is crucial.
Is this afternoon running step 3 and waiting for boot? Because when I did it I waited around 30 min on the Verizon boot screen before pulling the battery to reboot.
In reference to LG bridge. Is this different than LGUP?
Click to expand...
Click to collapse
I mean you have to wait at least 30 sec for the step "fastboot flash recovery twrp-3.0.2-1-xxx.img", & also have to do it multiple times in order to load the TWRP successfully.
Click to expand...
Click to collapse
The strange thing is that I could access twrp for a while but then after restoring with LGUP I can't access even stock recovery. And flashing the notsostock kernel messed up the ramdisk it seems, because it said it couldn't write over it. The thing that concerns me is restoring with LGUP doesn't make any difference to these two thiñgs
I am suffering with a similar issue, VS995s model. The touchscreen stopped working after the TWRP flash, using OTG I was able to access TWRP. I restored both the dec16 kdz and the feb18 kdz with no affect on the screen. I was able to use OTG mouse and bluetooth mouse to reflash TWRP with dirtysanta and used OTG mouse to flash lineage OS v14.1 this did not solve the issue either. I re-flashed stock and am at a loss on the next possible step.
tgtrottier, you mentioned that it worked again after flashing a bunch of different KDZ files, do you know the specific one? I am looking for a useable touchscreen at this point and can deal with no root.
@frownyface
Did you discover the solution to the touchscreen not working? After flashing TWRP I have the same issue.
Nope i used an otg mouse and reverted to stock and returned the item.
I felt super bad about it, but i didnt have the time to invest in disassembling it to find the cause which i suspect was a loose connection due to the extended vibration during the root process.
Thumbs down sorry i could not be any help,

Problems with rooting, loading ROM then recovery & download images -some solutions

Problems with rooting, loading ROM then recovery & download images -some solutions
I started with stock LG v20 T-Mobile H91810P and followed this step by step & the original threads. I loaded the latest stock Oreo from H91820H from here instead of latest Nougat H91810U - Pie & some other versions had too many things not working.
In the process there were a few problems -the major ones are following with solutions, some from here:
1) The file H91810p rom (H91810p_00_0717.kdz) downloaded from here.
2) I lost root several times, but had TWRP. So I used adb sideload like:
Boot/start TWRP and the start ADB Sideload
Download Magisk-v16.0.zip and copy to adb directory.
On Windows PC connect Cell with USB and in CMD window type (copy/paste):
adb start-server
adb sideload "Magisk-v16.0.zip"​And never update migisk after installing from above or will lose root. Also no need for SU.
3. Camera did not work and people could not hear me nor could I hear them when I picked up a call - A reboot/restart fixed it.
4. No need to download UPPERCUT (that is hard to download), because LGUP works fine without UPPERCUT.
I have 4 problems remaining -any help for solutions here is appreciated - especially exact type help please:
1) On LAF/Boot (original download) partition: Vol+ & connect to USB caused the download mode to come on for about 2 seconds and then TWRP (however I am glad that TWRP is here) -Prefer this to be the original download mode.
2) On Recovery patition: Vol- & connect to USB causes fastboot to come up. Flashed the recovery-twrp-h918-2018-10-18.img (renamed to recovery.img) to recovery partition using flashify and TWRP unsuccessfully. -Prefer this to be TWRP.
3) TWRP cannot access the Data partition. Rebuilt and reformatted Data from TWRP without success. -Prefer access to Data from TWRP.
4) At boot time: I like to get rid of the warning that my bootloader is unlocked. -I can live with this one.
After thoughts: Now that I am rooted on the latest stock Oreo H91820H -I am not sure what I want to load that I could not before?! overclocking the CPU or changing the hue on the display is not a big deal for me at all. & Yes I will uninstall some bloatware - but that is not so bad on this phone anyhow. Any good ideas or a better/later rom than H91820H that has all things working, do please let me know. I am glad that I rooted, ahh the challenge, but if I have no other reason such as to load a program then I think I will revert back to stock and unlock the bootloader & let the ROM updates come from T-Mobile & LG.
-Shahin
shahinman said:
I started with stock LG v20 T-Mobile H91810P and followed this step by step & the original threads. I loaded the latest stock Oreo from H91820H from here instead of latest Nougat H91810U - Pie & some other versions had too many things not working.
In the process there were a few problems -the major ones are following with solutions, some from here:
1) The file H91810P that needs to be reloaded was missing in original links - I think I downloaded from here.
2) I lost root several times, but had TWRP. So I used adb sideload like:
Boot/start TWRP and the start ADB Sideload
Download Magisk-v16.0.zip and copy to adb directory.
On Windows PC connect Cell with USB and in CMD window type (copy/paste):
adb start-server
adb sideload "Magisk-v16.0.zip"
And never update migisk after installing. Also no need for SU.
3. Camera did not work and people could not hear me nor could I hear them when I picked up a call - A reboot/restart fixed it.
I have 4 problems remaining -any help for solutions here is appreciated - especially exact type help please:
1) On LAF/Boot (original download) partition: Vol+ & connect to USB caused the download mode to come on for about 2 seconds and then TWRP (however I am glad that TWRP is here) -Prefer this to be the original download mode.
2) On Recovery patition: Vol- & connect to USB causes fastboot to come up. Flashed the recovery-twrp-h918-2018-10-18.img (renamed to recovery.img) to recovery partition using flashify and TWRP unsuccessfully. -Prefer this to be TWRP.
3) TWRP cannot access the Data partition. Rebuilt and reformatted Data from TWRP without success. -Prefer access to Data from TWRP.
4) At boot time: I like to get rid of the warning that my bootloader is unlocked. -I can live with this one.
After thoughts: Now that I am rooted on the latest stock Oreo H91820H -I am not sure what I want to load that I could not before?! overclocking the CPU or changing the hue on the display is not a big deal for me at all. & Yes I will uninstall some bloatware - but that is not so bad on this phone anyhow. Any good ideas or a better/later rom than H91820H that has all things working, do please let me know. I am glad that I rooted, ahh the challenge, but if I have no other reason such as to load a program then I think I will revert back to stock and unlock the bootloader & let the ROM updates come from T-Mobile & LG.
-Shahin
Click to expand...
Click to collapse
You can restore download mode by flashing the zip in the original lafexploit thread, but make sure you have twrp on the recovery partition. Make sure you are on the latest version of twrp, when you flashed twrp, you were supposed to format the data partition before flashing the rom.
Sent from my LG-H910 using XDA Labs
For access to Data in TWRP: In the original thread there is nothing about formatting, but in step by step guide there is and I followed - however it does not specify what partition to format. I also ran ./step2.sh script per instructions.
Anyhow as I mentioned above I rebuilt and reformatted the Data partition and that did not give me access. I am on the TWRP 3.2.1-3. What partitions do I need to reformat anyhow?
To flash recovery: I used TWRP and flashify to flash recovery-twrp-h918-2018-10-18.img and it flashes but does not work - I get to fastboot with Vol- & USB.
shahinman said:
Problems with rooting, loading ROM then recovery & download images -some solutions
I started with stock LG v20 T-Mobile H91810P and followed this step by step & the original threads. I loaded the latest stock Oreo from H91820H from here instead of latest Nougat H91810U - Pie & some other versions had too many things not working.
In the process there were a few problems -the major ones are following with solutions, some from here:
1) The file H91810p rom (H91810p_00_0717.kdz) downloaded from here.
2) I lost root several times, but had TWRP. So I used adb sideload like:
Boot/start TWRP and the start ADB Sideload​Download Magisk-v16.0.zip and copy to adb directory.​On Windows PC connect Cell with USB and in CMD window type (copy/paste):​adb start-server​adb sideload "Magisk-v16.0.zip"​
And never update migisk after installing from above or will lose root. Also no need for SU.
3. Camera did not work and people could not hear me nor could I hear them when I picked up a call - A reboot/restart fixed it.
4. No need to download UPPERCUT (that is hard to download), because LGUP works fine without UPPERCUT.
I have 4 problems remaining -any help for solutions here is appreciated - especially exact type help please:
1) On LAF/Boot (original download) partition: Vol+ & connect to USB caused the download mode to come on for about 2 seconds and then TWRP (however I am glad that TWRP is here) -Prefer this to be the original download mode.
2) On Recovery patition: Vol- & connect to USB causes fastboot to come up. Flashed the recovery-twrp-h918-2018-10-18.img (renamed to recovery.img) to recovery partition using flashify and TWRP unsuccessfully. -Prefer this to be TWRP.
3) TWRP cannot access the Data partition. Rebuilt and reformatted Data from TWRP without success. -Prefer access to Data from TWRP.
4) At boot time: I like to get rid of the warning that my bootloader is unlocked. -I can live with this one.
After thoughts: Now that I am rooted on the latest stock Oreo H91820H -I am not sure what I want to load that I could not before?! overclocking the CPU or changing the hue on the display is not a big deal for me at all. & Yes I will uninstall some bloatware - but that is not so bad on this phone anyhow. Any good ideas or a better/later rom than H91820H that has all things working, do please let me know. I am glad that I rooted, ahh the challenge, but if I have no other reason such as to load a program then I think I will revert back to stock and unlock the bootloader & let the ROM updates come from T-Mobile & LG.
-Shahin
Click to expand...
Click to collapse
I had this same situation and ended up bricking the phone, can't get into recovery, stuck in boot loop. This was months ago, just got another v20 and ready to try again. Previously I'd successfully done 3 v20's.

[OP6T] fastboot erase persist

Hello ALL!
I normally don't message much because usually I can find most of my problems can be fixed by searching threads online. However, this particular case for me has been exhausting because through trial and error I have been unsuccessful in getting my 6T to boot into any rom normally.
I went from a stock T-Mobile to International version to LOS. The reason I did what I did was because I could get a IMEI or SIM to register on LOS. That worked fine on OOS 9.0.11. but as soon a I flash the latest LOS, no sim, bootloader, or IMEI detection.
I was rooted and unlocked. Now I am neither.
While on LOS, someone on another forum suggested to erase the persist partition and reflash to get the sim imei back so the phone would get service, when the phone rebooted it still didn't work and then the second time it rebooted it always gets stuck on the boot screen and never boots into the OS.
I tried to repair and reflash but was unsuccessful.
Since doing all of that, Ive reflashed using msm tool and although that was successful for OOS 9.0.11 and T-Mobile stock rom. It gets stuck on the boot screens for both.
I flashed LOS on A & B so I don't have a stock recovery.
I can't ADB anymore. I can only seem to connect via FASTBOOT but cannot seem to flash anything because the BOOTLOADER is now LOCKED.
How can I get this phone back to its original state? What ever the persist partition is. Removing it had made the phone non-bootable.
What can I do to fix? I greatly appreciate any help to get the phone operational again.
Thank you all!
https://forum.xda-developers.com/oneplus-6t/how-to/rom-stock-fastboot-roms-oneplus-6t-t3862516
- Go to the thread linked above and download the latest OOS (.13) stable.
- Download latest Magisk.
- Have the latest TWRP .img downloaded and on-hand, you will use a few times as well as the installer .zip.
- Be sure to have adb/fastboot installed.
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
- Put your phone into fastboot mode (reboot to bootloader).
- Go to the folder you downloaded in the first step and run the "flash all.bat".
- Ignore errors. If it's get stuck for more than 45 seconds, just hit enter to keep it going.
- OOS will boot. Go to settings, enable developer setting, enable advanced reboot and reboot bootloader again.
- Use "fastboot boot 'twrp-file-name'.img" to boot into TWRP.
- In TWRP, go to Reboot and changed the boot partition to the one NOT CURRENTLY enabled. In other words, switch boot partitions.
- Reboot bootloader.
- Go to the folder you downloaded in the first step and run the "flash all.bat" again.
- OOS will boot. Go to settings, enable developer setting, enable advanced reboot and reboot bootloader again.
- Use "fastboot boot 'twrp-file-name'.img" to boot into TWRP again.
- Move Magisk installer and TWRP installer from steps two and three onto the internal memory of your device.
- Flash TWRP, reboot recovery to make sure it sticks.
- Flash Magisk for root.
- Wipe dalvik and reboot system.
You will have the latest stable OOS on both partitions at this point! I literally just did this yesterday. Good luck!
..Cory.. said:
https://forum.xda-developers.com/oneplus-6t/how-to/rom-stock-fastboot-roms-oneplus-6t-t3862516
- Go to the thread linked above and download the latest OOS (.13) stable.
- Download latest Magisk.
- Have the latest TWRP .img downloaded and on-hand, you will use a few times as well as the installer .zip.
- Be sure to have adb/fastboot installed.
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
***BACK UP DATA, YOUR PHONE WILL BE WIPED. INTERNAL SD AS WELL***
- Put your phone into fastboot mode (reboot to bootloader).
- Go to the folder you downloaded in the first step and run the "flash all.bat".
- Ignore errors. If it's get stuck for more than 45 seconds, just hit enter to keep it going.
- OOS will boot. Go to settings, enable developer setting, enable advanced reboot and reboot bootloader again.
- Use "fastboot boot 'twrp-file-name'.img" to boot into TWRP.
- In TWRP, go to Reboot and changed the boot partition to the one NOT CURRENTLY enabled. In other words, switch boot partitions.
- Reboot bootloader.
- Go to the folder you downloaded in the first step and run the "flash all.bat" again.
- OOS will boot. Go to settings, enable developer setting, enable advanced reboot and reboot bootloader again.
- Use "fastboot boot 'twrp-file-name'.img" to boot into TWRP again.
- Move Magisk installer and TWRP installer from steps two and three onto the internal memory of your device.
- Flash TWRP, reboot recovery to make sure it sticks.
- Flash Magisk for root.
- Wipe dalvik and reboot system.
You will have the latest stable OOS on both partitions at this point! I literally just did this yesterday. Good luck!
Click to expand...
Click to collapse
Thank you but how can I flash if my bootloader is locked? Everything I try fails.
I guess the real question is: How can I get the phone to turn on OEM UNLOCK so I can fastboot unlock the Bootloader if it wont boot up the OS?
Is there a way to fix it via the msmdownload tool? Custom file maybe? I've tried the files 9.0.11 & 12 OOS files and all I get is the boot screen white ball logo circling the red ball - stuck in loop and same with stock t-mobile rom.
My friend, sounds like you need to restore your EFS partitions
... I'm trying to figure out how the hell you successfully flashed MSM tool in EDL mode and not have ALL your partitions restored. That tool is supposed to literally write the phone as it came out of the box. Also I think there are different MSM tools for each device respectively, you did use the T-Mobile one right?
Causical said:
My friend, sounds like you need to restore your EFS partitions
... I'm trying to figure out how the hell you successfully flashed MSM tool in EDL mode and not have ALL your partitions restored. That tool is supposed to literally write the phone as it came out of the box. Also I think there are different MSM tools for each device respectively, you did use the T-Mobile one right?
Click to expand...
Click to collapse
My thoughts exactly. So, when it was on LOS I erased the persist partition and that really messed things up. So yes, how can I restore the partition back with a locked bootloader? Every time I've used MSM tool it fixes everything. This time no such luck. I flashed 9.0.11 & 12 and then I did the T-Mobile version. All only boot to the boot screen and hang. In doing so, I wasn't thinking if that failed and it locks the bootloader, then what? I saw an old video somewhere on a oneplus 2 or 3 where the person used the msm tool 3.0 and fixed a bricked locked bootloader phone. Similar to the fastboot method of reformatting. In the msm tool folder he had all the image files for all the partitions not sure if that the same thing as msm tool 4.0 with just one ops image file?
Anyway, is there a way to unlock the bootloader without booting into the OS? Or a way to restore the partitions via msm tool?
defcondoc said:
My thoughts exactly. So, when it was on LOS I erased the persist partition and that really messed things up. So yes, how can I restore the partition back with a locked bootloader? Every time I've used MSM tool it fixes everything. This time no such luck. I flashed 9.0.11 & 12 and then I did the T-Mobile version. All only boot to the boot screen and hang. In doing so, I wasn't thinking if that failed and it locks the bootloader, then what? I saw an old video somewhere on a oneplus 2 or 3 where the person used the msm tool 3.0 and fixed a bricked locked bootloader phone. Similar to the fastboot method of reformatting. In the msm tool folder he had all the image files for all the partitions not sure if that the same thing as msm tool 4.0 with just one ops image file?
Anyway, is there a way to unlock the bootloader without booting into the OS? Or a way to restore the partitions via msm tool?
Click to expand...
Click to collapse
Try this and tell me if it works.
Have you tried this dudes stuff? https://forum.xda-developers.com/oneplus-6t/how-to/op6t-collection-unbrick-tools-t3914746
... Not even sure what it is really, just says collection of unbrick tools.
_Masked_ said:
Try this and tell me if it works.
Click to expand...
Click to collapse
Yes, I did try that. That is what I just flashed with the msm tool. Gets stuck on the OOS boot animation.
Causical said:
Have you tried this dudes stuff? https://forum.xda-developers.com/oneplus-6t/how-to/op6t-collection-unbrick-tools-t3914746
... Not even sure what it is really, just says collection of unbrick tools.
Click to expand...
Click to collapse
Looks like the MSM tool. I'm going to give 9.0.13 a try but I'm thinking I may have the same problem.
Causical said:
Have you tried this dudes stuff? https://forum.xda-developers.com/oneplus-6t/how-to/op6t-collection-unbrick-tools-t3914746
... Not even sure what it is really, just says collection of unbrick tools.
Click to expand...
Click to collapse
Tried 9.0.13. Still gets stuck on OOS boot animation screen. There's got to be something to flash to fix this.
So you're booting EDL mode then flashing the MSM tool that exactly matches the way your phone came stock? At this point I would discontinue trying to convert it to international or upgrade the OS to a more recent version or any of that. I would focus on strictly flashing it to exactly the way you bought it.
Causical said:
So you're booting EDL mode then flashing the MSM tool that exactly matches the way your phone came stock? At this point I would discontinue trying to convert it to international or upgrade the OS to a more recent version or any of that. I would focus on strictly flashing it to exactly the way you bought it.
Click to expand...
Click to collapse
Yes. I did flash the stock T-Mobile ROM via the MSM tool. Freezes at the pink T-Mobile boot screen. Pretty sure the partitions need to be fixed but I thought the MSM tool would do that? I guess not. Is there a more advanced MSM tool where I can see what's being partitioned or is the MSM tool not doing any partitioning and that's why the phone is having the boot problem?
defcondoc said:
Yes. I did flash the stock T-Mobile ROM via the MSM tool. Freezes at the pink T-Mobile boot screen. Pretty sure the partitions need to be fixed but I thought the MSM tool would do that? I guess not. Is there a more advanced MSM tool where I can see what's being partitioned or is the MSM tool not doing any partitioning and that's why the phone is having the boot problem?
Click to expand...
Click to collapse
I know this is a stupid question but have you tried a factory reset in recovery mode? I know its a stupid question but I did not see it asked or noted.
Scott said:
I know this is a stupid question but have you tried a factory reset in recovery mode? I know its a stupid question but I did not see it asked or noted.
Click to expand...
Click to collapse
No stupid questions and I don't mind repeating answers to questions. I have tried that, but it does nothing. I get wipe cache or reboot to fastboot or reboot to recovery. When I choose system wipe, it takes 1 second to finish. It reboots and it gets stuck on the boot screen. Ever since persist partition was deleted it just freezes on startup and now that the bootloader is locked I cant seem to get anything to work. MSM tool I thought was supposed to fix this sort of thing but it has failed. Someone must know a way to get back into the OS so I can turn on OEM Unlock.
How do you know your bootloader is locked?
Causical said:
How do you know your bootloader is locked?
Click to expand...
Click to collapse
Fastboot says bootloader is locked. Shows it on the fastboot screen. Wont let me transfer any files from pc to phone. I can start the transfer process but it fails.
defcondoc said:
Fastboot says bootloader is locked. Shows it on the fastboot screen. Wont let me transfer any files from pc to phone. I can start the transfer process but it fails.
Click to expand...
Click to collapse
So you're able to enter EDL mode with a locked bootloader? How do you know your computer is seeing your device in EDL mode?
I'm going to place this here for myself for now. I'm just trying to understand your situation a little better, but this is just for later.... maybe, depending on your answer. https://forum.xda-developers.com/an...how-to-reboot-to-edl-fastboot-t3394292/page12
ALSO; If you don't mind can you link the thread that contains the original discussion where your problem began?
Causical said:
So you're able to enter EDL mode with a locked bootloader? How do you know your computer is seeing your device in EDL mode?
I'm going to place this here for myself for now. I'm just trying to understand your situation a little better, but this is just for later.... maybe, depending on your answer. https://forum.xda-developers.com/an...how-to-reboot-to-edl-fastboot-t3394292/page12
ALSO; If you don't mind can you link the thread that contains the original discussion where your problem began?
Click to expand...
Click to collapse
The point of EDL is to get around any restrictions or issues with the device, so yes, you can boot to EDL while locked. Your link will not help much because he can already get to EDL. Not to mention he will have no ADB access. Whatever he does, he has to fix it in EDL.
OP: Are you up and running yet? I am willing to try copying out my partition and sending to you.
Let me know...
---------- Post added at 08:12 PM ---------- Previous post was at 08:08 PM ----------
Wait, I just realized that my persist.img would not work because he has no way to flash it.
Nevermind.

Error in installing twrp

Hy everyone ineed help..
I have h990ds in nouget android security before 2016.
I try to root but in the middle of proses,its error, i try to flashing by lgup but the screen only flashboot mode. :crying::crying:
The some words in my screen:
Fastboot mode(red color)
Product name_msm8996 64gb
Varian_msm8996 64gb
Hw version_rev10
Bla...
Serial number -lgus996af7da36 (my type h990ds)
Secure boot-disable
Lock state_lock
[1090]
[1140]fastboot mode started
There 3 steps .bat after runfirsttime.bat
An i click step3 after step 2.
nuqudlover said:
Hy everyone ineed help..
I have h990ds in nouget android security before 2016.
I try to root but in the middle of proses,its error, i try to flashing by lgup but the screen only flashboot mode. :crying::crying:
The some words in my screen:
Fastboot mode(red color)
Product name_msm8996 64gb
Varian_msm8996 64gb
Hw version_rev10
Bla...
Serial number -lgus996af7da36 (my type h990ds)
Secure boot-disable
Lock state_lock
[1090]
[1140]fastboot mode started
There 3 steps .bat after runfirsttime.bat
An i click step3 after step 2.
Click to expand...
Click to collapse
The good news is that you've got the dirtysanta bootloader installed (that's why it's reporting us996) so you should be able to fix it without using LG UP and having to redo most of the process.
Install twrp by doing fastboot flash path/to/twrp.img .then pull the battery when done. Then enter twrp by using to volume key method (hold volume down, press power until the screen turns on, then tap power repeatedly until a menu asking to factory reset appears, say yes (while twrp is installed it won't actually wipe anything).)
Flash a rom (a stock one is here), and magisk.
If you can't use an sdcard to get them accessible to the phone in twrp, in twrp you can go into advanced then sideload and connect to a PC and do adb sideload path/to/rom-or-magisk.zip
Phoenix591 said:
The good news is that you've got the dirtysanta bootloader installed (that's why it's reporting us996) so you should be able to fix it without using LG UP and having to redo most of the process.
Install twrp by doing fastboot flash path/to/twrp.img .then pull the battery when done. Then enter twrp by using to volume key method (hold volume down, press power until the screen turns on, then tap power repeatedly until a menu asking to factory reset appears, say yes (while twrp is installed it won't actually wipe anything).)
Flash a rom (a stock one is here), and magisk.
If you can't use an sdcard to get them accessible to the phone in twrp, in twrp you can go into advanced then sideload and connect to a PC and do adb sideload path/to/rom-or-magisk.zip
Click to expand...
Click to collapse
After use adb fastboot flash recovery twrp.img, there's new problem.
Using volume key mode my screen is blank, just like broken TV.. :crying::crying:
nuqudlover said:
After use adb fastboot flash recovery twrp.img, there's new problem.
Using volume key mode my screen is blank, just like broken TV.. :crying::crying:
Click to expand...
Click to collapse
to totally back out and bring your phone to totally stock use download mode (from powered off hold volume UP while connecting to the pc). The screen will be still messed up but it will still work on the pc.
Use patched LG UP in partition dl mode to flash everything with a stock h990(ds) kdz.
Once you start using dirtysanta next time (if you decide to try again) be very very careful when using LG UP (easier to just use stock flashabile zip) unless you want to redo the above and flash EVERYTHING back to stock (if you ever flash the aboot partition in LG UP and anything ISN'T stock it will brick you! This mostly applies to partition dl mode since upgrade mode flashes everything, but partition dl mode is the only mode you can even potentially flash things and keep root (but I don't encourage this... its easier and saferto just use zips in TWRP to flash firmware (mostly stock basedrom or so called stock flashible zips tend to also flash all of the firmware except parts needed to keep root. )
Phoenix591 said:
to totally back out and bring your phone to totally stock use download mode (from powered off hold volume UP while connecting to the pc). The screen will be still messed up but it will still work on the pc.
Use patched LG UP in partition dl mode to flash everything with a stock h990(ds) kdz.
Once you start using dirtysanta next time (if you decide to try again) be very very careful when using LG UP (easier to just use stock flashabile zip) unless you want to redo the above and flash EVERYTHING back to stock (if you ever flash the aboot partition in LG UP and anything ISN'T stock it will brick you! This mostly applies to partition dl mode since upgrade mode flashes everything, but partition dl mode is the only mode you can even potentially flash things and keep root (but I don't encourage this... its easier and saferto just use zips in TWRP to flash firmware (mostly stock basedrom or so called stock flashible zips tend to also flash all of the firmware except parts needed to keep root. )
Click to expand...
Click to collapse
I already use lgup pacher, when connected the message unknown model
Can i using flash laf.bin from fastbootmode?
nuqudlover said:
I already use lgup pacher, when connected the message unknown model
Can i using flash laf.bin from fastbootmode?
Click to expand...
Click to collapse
But did you use partition dl mode? It alone bypasses the model checks.
Partition dl mode isn't in regular lg up, you need the special patched version I linked (replace the files of your regular lg up with the special version)
Phoenix591 said:
But did you use partition dl mode? It alone bypasses the model checks.
Partition dl mode isn't in regular lg up, you need the special patched version I linked (replace the files of your regular lg up with the special version)
Click to expand...
Click to collapse
I already put your special patched to my Lgup..
nuqudlover said:
I already put your special patched to my Lgup..
Click to expand...
Click to collapse
Try uppercut then. Use upgrade mode if it works but partition dl mode is missing. Note uppercut asks for lg up version 1.14 . I can't remember what version the patched one is but you may have to reinstall that version instead.

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