Hi!
I have same problem as here:
http://forum.xda-developers.com/g-flex2/help/h950-5-1-1-v11z-bricked-bootloop-lg-t3223221
But i dont delete rootedsystem.img
I tried this guide:
http://forum.xda-developers.com/g-flex2/development/lg-g-flex-2-ls996-zv6-sprint-5-1-1-t3169212
But first time dont work, then i copy bad copy command and i run "dump" command, what does it mean?Its all deleted?I think it shoud be for backup no?And when im now trying to do flash cmd, the hashtag dont dissappered.
Any idead?I have last V15C rom, so i dont can use LGFlashtool, because downgrade doesnt work?
Yes you can use LG Flash Tool to restore your phone to stock and unbrick your device. Download V15c stock kdz file and flash it with lg flash tool from download mode (turn of the phone, hold volume up and connect your phone to pc). Run lg flash tool, browse for v15c kdz, select csm flash to format all data, and pres start, wait for 5-10 minutes and watch progres bar on the phone. If lg flash tool crash after phone reboots, never mind it is ok.
So you do not need to downgrade because there is a v15c kdz, I use this method to unroot and revert everything as new.
Sent from my LG-H955 using Tapatalk
Yeah, i done it yesterday before your post.Luckily i have found all Flex 2 firmwares, so i flash correct one.But thanks for your answer.
Hi
This is short guide on how to install latest available Firmwares on a rooted lg stylo 2 plus ms550 [Note: this will remove root and twrp from your device and you will need to re apply the steps in my twrp thread to flash twrp and get the root back]
Steps:
1- download the latest kdz from here
https://lg-firmwares.com/lg-ms550-firmwares/
2- download lg up 1.14 from here
http://downloads.codefi.re/autoprime/LG/Flash_Tools/LGUP/LGUP_Store_Frame_Ver_1_14_3.msi
3- install lg up, open it and choose the upgrade option
4- choose the downloaded kdz and press start
5- wait for the phone till it reboot to the download mode, install the new firmware and after the flash is done your device will automatically reboot back to the system.
enjoy
Awesome appreciate your work!!!
hey whats the difference between mtp and mtk thank you
gpz1989 said:
hey whats the difference between mtp and mtk thank you
Click to expand...
Click to collapse
here you go
https://lg-firmwares.com/lg-regions-descriptions/
I want to first thank Messie2050 for all his work on this. I know I'm making a mistake when I'm attempting to root this phone but I don't know what exactly I'm doing. I follow each step to a T. When I get to opening the command prompt and type in fastboot etc, windows says it doesn't recognize the command "fastboot" and to make sure I typed in correctly. I also tried on my netbook which is running Linux. It's slightly easier however it just waits on the device. I don't know how to extract the twrp file on a Linux machine. Can anyone help? I've tried everything to root this phone!
I am getting a msg that says invalid kdz....
Yeah, still not sure whether to use MTK or MTP.
My LG UP said LGUP can't load the model (C:/Program Files (*86)/LG Electronics/LGUP/model/com
I've switched from my Lumia 928 to LG V20 (US996 unlocked) for 6 motnhs, and i loved it untill some **** happened. After the previous OTA update, my phone encounted radio off or no service issue. I find out this happened after reflashed the stock rom or OTA update, if you have this issue please follow these steps:
What you need:
US996 stock rom: http://lg-firmwares.com/category/lg-series/lg-v20/ (US99610f for unlocked ver.)
Patched LGUP for V20: https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
The lastest Super SU or Magisk (in case you need to pass the Safety Net for using Banking app, Android pay, etc.)
Modem file.
ADB, LG lastest driver.
I uploaded the nesscesary in here: https://drive.google.com/drive/folders/1pKKp78EqFwoCs5PuXi_2P-4_hsEx6u5_?usp=sharing
This tutorial will have 3 section: first you need to downgrade your phone to US99610f or this won't work. Next unlock your boot loader via dirtysanta n flasing TWRP. Then you flash the modem file and root your deviece with superSU or Magisk (optional).
I recommend you read this though out and pateintly following these step. You should backup your data before starting this. Do this at your own risk.
Downgrade to US99610f
If you are on the US99610n then you need to downgrade to US99610f cause you can't use dirtysanta on the US99610f (you can start from step 4 in case your phone is not soft bricked)
1. Completely Power off the v20 ( or to remove and put the battery back )
2. Plug the USB end of sync cable to your PC
3. Press and hold "Volume Up"
4. Plug in the USB-C end of sync cable to the v20. The phone will enter download mode (or Firmware Update). Now you can release the "Volume Up".
5. Run LGUP. The program will regconise the v20.
8. At the file path, click "..." and chose the .kdz file
9.Choose "UPGRADE"
10.Click "Start" and wait until the process is complete wait untill your phone boot up and there you are US99610f and still no service :silly:
Unlock Bootloader n' flashing TWRP
Turn on developer options in Settings -> About device -> Software info -> Build number. (tap 7 times or spamming it until it's enabled):laugh:
Now navigate to Settings -> Developer options -> OEM unlock. (turn it on)
Don't ever turn OEM unlock or Developer options off when using a custom ROM or recovery. This could lose to loss of all your data.
For your computer to see ADB, you will need to put the phone in Files transfer mode.
To unlock your bootloader, follow the unlock instructions on LG's site (I can't really help you there):
"This may void your warranty"
https://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryTypeCode=ANRS
After your phone boot up:
1. copy twrp.img to your internal storage or SD card.
2. Start ADB and following these steps (just copy and paste):
https://github.com/jcadduono/android_external_dirtycow#running
3. Wait for it to complete and type:
Code:
reboot recovery
If you don't want to void your warranty please use the dirty santa by following this threat:
https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
In this threat you will unlock you boot loader n flashing recovery. Right after you've done step 3 and your phone boot up you can wait (I dont recommend you to wait for you phone boot up, mine have screen static after that so just following these step to enter TWRP we will fix it later):
1. unplug the cable right after the logo boot up
2. remove the battery.
3. boot your phone up while holding BOTH vol down and power key.
4. Briefly release the power key right after you saw the LG logo and press it back again.
5. untill your phone boot up use vol key and power key to select yes on both screen.
6. wait for you phone reboot and now you in TWRP.
7. Select cancel if the phone ask you for password and swipe to right to allow modifications.
Flashing modem, fix screen static and other.
Now put these files in your SD card or your internal storage with mount option in TWRP (Mount=> enable MTP): Modem.img, SuperSU or Magisk, kernel and boot2.img (in adb folder).
In TWRP:
1. Tap on "wipe" => format data => type "yes"
2. Go back to home menu then select “Reboot” then “Recovery”.
3. Once rebooted, swipe to right again.
4. Tap on “Install”.
5. Choose your microSD card or internal storage depend on where you copy those files.
6. Tap on "Install Image" and select "modem.img"
7. Select "modem" and Swipe to flash.
If you use dirtysanta method you need to flash "boot2.img" to fix the screen static. Similar to flashing "modem.img" but you select "boot" before swipe to flash.
8. Go back to home menu then select “Reboot” then “System”.
Wait for your phone boot up and the issue should be fixed.
Additional things
For more advance you can flash SuperSU or Magisk if you want to root you phone for more benefit.
Flashing kernel to fix your screen retention, screen static and more ( this won't cause SafetyNet failure that mean you can use android pay and banking app).
mk2000 kernel features:
Linux 3.18.85
KCAL - Screen panel control.
ElementalX and Zzmoove CPU governors.
Modules signed and secure, as in stock rom.
Disable software CRC checking of SD Card - More performance.
Fix by emdroidle for eng-bootloader (US996Santa, H990 & H910).
CRC32 and CHACHA20 HW ACC, CRNG based on CHACHA20.
Static screen fixed (US996Santa, H990 & H910).
Many patches that improves or fixes things.
Maple I/O scheduler.
LZ4 compression.
RCTD removed.
You need to flash kernel right after SuperSU/Magisk or before you reboot to system.
Update:
in case you want to upgrade to the lastest OTA you can follow this threat:
https://forum.xda-developers.com/v20/development/rom-us99610k-stock-rom-twrp-flashable-t3691784
And you need to reflash the "modem.img".
My thanks to:
@askermk2000 for his kernel.
@jcadduono, @me2151 for rooting guide.
hi ttnduy, thank you for creating this thread.
my lg v20 now is no service after i update from lg bridge. before i update via lg bridge i have to upgrade via OTA but fail. then i read a message to upgrade via lg bridge.
i have some questions:
1. i missed this step : "To unlock your bootloader, follow the unlock instructions on LG's site."
so my next step is :
"github.com/jcadduono/android...rtycow#running is that right?"
then after follwing "https://github.com/jcadduono/android...rtycow#running"
my next step is :
"If you don't want to void your warranty please use the dirty santa by following this threat:"
is that right?
2. can you please explain which one i must do(copy and paste) on this step :
github.com/jcadduono/android...rtycow#running
where i run this step? is on adb to copy and paste?
thank you very much
harry.wong said:
hi ttnduy, thank you for creating this thread.
my lg v20 now is no service after i update from lg bridge. before i update via lg bridge i have to upgrade via OTA but fail. then i read a message to upgrade via lg bridge.
i have some questions:
1. i missed this step : "To unlock your bootloader, follow the unlock instructions on LG's site."
so my next step is :
"github.com/jcadduono/android...rtycow#running is that right?"
then after follwing "https://github.com/jcadduono/android...rtycow#running"
my next step is :
"If you don't want to void your warranty please use the dirty santa by following this threat:"
is that right?
2. can you please explain which one i must do(copy and paste) on this step :
github.com/jcadduono/android...rtycow#running
where i run this step? is on adb to copy and paste?
thank you very much
Click to expand...
Click to collapse
1. If you already unlock your boot loader with LG unlocked file then after you do step 3 (type reboot recovery) then you can go straight to "Flashing modem, fix screen static and other" step.
2. Here what you need to copy n paste (Running part in the link):
Code:
adb push dirtycow /data/local/tmp
adb push recowvery-applypatch /data/local/tmp
adb push recowvery-app_process64 /data/local/tmp
adb push recowvery-run-as /data/local/tmp
adb shell
$ cd /data/local/tmp
$ chmod 0777 *
$ ./dirtycow /system/bin/applypatch recowvery-applypatch
"<wait for completion>"
$ ./dirtycow /system/bin/app_process64 recowvery-app_process64
"<wait for completion, your phone will look like it's crashing>"
$ exit
adb logcat -s recowvery
"<wait for it to tell you it was successful>"
"[CTRL+C]"
adb shell reboot recovery
"<wait for phone to boot up again, your recovery will be reflashed to stock>"
adb shell
$ getenforce
"<it should say Permissive, adjust source and build for your device!>"
$ cd /data/local/tmp
$ ./dirtycow /system/bin/run-as recowvery-run-as
$ run-as exec ./recowvery-applypatch boot
"<wait for it to flash your boot image this time>"
$ run-as su
#
From your root shell, it's possible to use commands such as:
Code:
dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/recovery
ttnduy said:
I've switched from my Lumia 928 to LG V20 (US996 unlocked) for 6 motnhs, and i loved it untill some **** happened. After the previous OTA update, my phone encounted radio off or no service issue. I find out this happened after reflashed the stock rom or OTA update, if you have this issue please follow these steps:
What you need:
US996 stock rom: http://lg-firmwares.com/category/lg-series/lg-v20/ (US99610f for unlocked ver.)
Patched LGUP for V20: https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
The lastest Super SU or Magisk (in case you need to pass the Safety Net for using Banking app, Android pay, etc.)
Modem file.
ADB, LG lastest driver.
I uploaded the nesscesary in here: https://drive.google.com/drive/folders/1pKKp78EqFwoCs5PuXi_2P-4_hsEx6u5_?usp=sharing
This tutorial will have 3 section: first you need to downgrade your phone to US99610f or this won't work. Next unlock your boot loader via dirtysanta n flasing TWRP. Then you flash the modem file and root your deviece with superSU or Magisk (optional).
I recommend you read this though out and pateintly following these step. You should backup your data before starting this. Do this at your own risk.
Downgrade to US99610f
If you are on the US99610n then you need to downgrade to US99610f cause you can't use dirtysanta on the US99610f (you can start from step 4 in case your phone is not soft bricked)
1. Completely Power off the v20 ( or to remove and put the battery back )
2. Plug the USB end of sync cable to your PC
3. Press and hold "Volume Up"
4. Plug in the USB-C end of sync cable to the v20. The phone will enter download mode (or Firmware Update). Now you can release the "Volume Up".
5. Run LGUP. The program will regconise the v20.
8. At the file path, click "..." and chose the .kdz file
9.Choose "UPGRADE"
10.Click "Start" and wait until the process is complete wait untill your phone boot up and there you are US99610f and still no service :silly:
Unlock Bootloader n' flashing TWRP
Turn on developer options in Settings -> About device -> Software info -> Build number. (tap 7 times or spamming it until it's enabled):laugh:
Now navigate to Settings -> Developer options -> OEM unlock. (turn it on)
Don't ever turn OEM unlock or Developer options off when using a custom ROM or recovery. This could lose to loss of all your data.
For your computer to see ADB, you will need to put the phone in Files transfer mode.
To unlock your bootloader, follow the unlock instructions on LG's site (I can't really help you there):
"This may void your warranty"
https://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryTypeCode=ANRS
After your phone boot up:
1. copy twrp.img to your internal storage or SD card.
2. Start ADB and following these steps (just copy and paste):
https://github.com/jcadduono/android_external_dirtycow#running
3. Wait for it to complete and type:
Code:
reboot recovery
If you don't want to void your warranty please use the dirty santa by following this threat:
https://forum.xda-developers.com/v20/development/ls997vs995h910-dirtysanta-bootloader-t3519410
In this threat you will unlock you boot loader n flashing recovery. Right after you've done step 3 and your phone boot up you can wait (I dont recommend you to wait for you phone boot up, mine have screen static after that so just following these step to enter TWRP we will fix it later):
1. unplug the cable right after the logo boot up
2. remove the battery.
3. boot your phone up while holding BOTH vol down and power key.
4. Briefly release the power key right after you saw the LG logo and press it back again.
5. untill your phone boot up use vol key and power key to select yes on both screen.
6. wait for you phone reboot and now you in TWRP.
7. Select cancel if the phone ask you for password and swipe to right to allow modifications.
Flashing modem, fix screen static and other.
Now put these files in your SD card or your internal storage with mount option in TWRP (Mount=> enable MTP): Modem.img, SuperSU or Magisk, kernel and boot2.img (in adb folder).
In TWRP:
1. Tap on "wipe" => format data => type "yes"
2. Go back to home menu then select “Reboot” then “Recovery”.
3. Once rebooted, swipe to right again.
4. Tap on “Install”.
5. Choose your microSD card or internal storage depend on where you copy those files.
6. Tap on "Install Image" and select "modem.img"
7. Select "modem" and Swipe to flash.
If you use dirtysanta method you need to flash "boot2.img" to fix the screen static. Similar to flashing "modem.img" but you select "boot" before swipe to flash.
8. Go back to home menu then select “Reboot” then “System”.
Wait for your phone boot up and the issue should be fixed.
Additional things
For more advance you can flash SuperSU or Magisk if you want to root you phone for more benefit.
Flashing kernel to fix your screen retention, screen static and more ( this won't cause SafetyNet failure that mean you can use android pay and banking app).
mk2000 kernel features:
Linux 3.18.85
KCAL - Screen panel control.
ElementalX and Zzmoove CPU governors.
Modules signed and secure, as in stock rom.
Disable software CRC checking of SD Card - More performance.
Fix by emdroidle for eng-bootloader (US996Santa, H990 & H910).
CRC32 and CHACHA20 HW ACC, CRNG based on CHACHA20.
Static screen fixed (US996Santa, H990 & H910).
Many patches that improves or fixes things.
Maple I/O scheduler.
LZ4 compression.
RCTD removed.
You need to flash kernel right after SuperSU/Magisk or before you reboot to system.
Update:
in case you want to upgrade to the lastest OTA you can follow this threat:
https://forum.xda-developers.com/v20/development/rom-us99610k-stock-rom-twrp-flashable-t3691784
And you need to reflash the "modem.img".
My thanks to:
@askermk2000 for his kernel.
@jcadduono, @me2151 for rooting guide.
Click to expand...
Click to collapse
sir is this only applicable for US996? i have my v20 H91010I same issue after updates no signal and radio. i was waiting for threads like this but hopefully this will work for other variant
AceGed said:
sir is this only applicable for US996? i have my v20 H91010I same issue after updates no signal and radio. i was waiting for threads like this but hopefully this will work for other variant
Click to expand...
Click to collapse
Idk if this gonna work with H910 but you can try. If you still in warranty than you better turn it in. Btw you may need the modem file from other working H910.
You saved my ass and my US996, with your guide. Thanks!
I have this same issue on my LS997, but as you may know there is no stock kdz for LS997(LG V20 SPRINT). If i were to flash the US996 Kdz to my LS997 via LGUP(yes it would boot fine) and then follow your steps ie flash US996 modem to my LS997 after hitting it with US996 kdz, would that get my radio working?
einsteino said:
I have this same issue on my LS997, but as you may know there is no stock kdz for LS997(LG V20 SPRINT). If i were to flash the US996 Kdz to my LS997 via LGUP(yes it would boot fine) and then follow your steps ie flash US996 modem to my LS997 after hitting it with US996 kdz, would that get my radio working?
Click to expand...
Click to collapse
Maybe, since i only have us996 so i couldn't tell you if that gonna work or not. But i think, it worth to try. Btw be carefully with the ARB.
ttnduy said:
Maybe, since i only have us996 so i couldn't tell you if that gonna work or not. But i think, it worth to try. Btw be carefully with the ARB.
Click to expand...
Click to collapse
Thanks for your reply. I was able to fix it by flashing the ls997 ZV6 firmware zip that someone posted on one of the threads
First of all, thank you for this guide.. You were savior of my LG V20 US996 to turn back with signal . But even my signal is exist, I cannot connect to internet. I stay in Indonesia. I already changed every modem (around 5 times I suppose..) but stilL can't connect to internet. Do you have any suggestion?
Thank you
US99610f not in Google Drive Link
Hello ttnduy,
I am following your guide. I was just wondering if you have US99610f for (Unlocked) version. The download at lg-firmwares[dot]com/lg-us996-firmwares/firmwares/ is pain fully slow.
Thanks mate
MW
zee789 said:
First of all, thank you for this guide.. You were savior of my LG V20 US996 to turn back with signal . But even my signal is exist, I cannot connect to internet. I stay in Indonesia. I already changed every modem (around 5 times I suppose..) but stilL can't connect to internet. Do you have any suggestion?
Thank you
Click to expand...
Click to collapse
Maybe the different in mobile broadband or something, do you try reflash the modem file or ROM ?
-MW- said:
Hello ttnduy,
I am following your guide. I was just wondering if you have US99610f for (Unlocked) version. The download at lg-firmwares[dot]com/lg-us996-firmwares/firmwares/ is pain fully slow.
Thanks mate
MW
Click to expand...
Click to collapse
I have updated the US99610f kdz file for the unlocked version. Hope this gonna help.
Hi all,
on my LG-US996
when I tried to run the bootloader from the LG page
I get the following error
"Unfortunately, your device(United States, (US CELLULAR_TULSA(USA)) )does not support unlocking the bootloader."
What are my options now? How else can I get the on board radio/modem working again?
My phone stopped working after the update from the LG Bridge. (I would have been better off not doing any update)
You have to be careful what kdz you flash on us996 I have found if you flash the wrong kdz it will not work properly and can be a hassle to get it back.....
You have saved my ass! I thanked you, and rated your post as excellent, but i feel the need to also post a thank you! Merry Christmas, Happy Holidays and may you have a Happy New Year!
Help request..
Recently i bought v20 us996 unlocked us cellular.
And it's automatically updated to us99610n.
The signal was lost after that.
What I've done after following this thread instruction:
1. Downgrade to us99610f via patched LGUP. Success.
2. Unlock bootloader via LG developer web. Failed.
I inputted imei & device ID 64 digits. But it's unmatch.
What's wrong with my step?
I'm using adb & got device ID.
My v20 condition now is most basic apps force closed.
I would like to unlock via dirtysanta, but I'm kind of confused. This is my first time using adb.
I hope to get some help in here ???
FYI I'm in Indonesia.
Thanks.
kmn5 said:
Hi all,
on my LG-US996
when I tried to run the bootloader from the LG page
I get the following error
"Unfortunately, your device(United States, (US CELLULAR_TULSA(USA)) )does not support unlocking the bootloader."
What are my options now? How else can I get the on board radio/modem working again?
My phone stopped working after the update from the LG Bridge. (I would have been better off not doing any update)
Click to expand...
Click to collapse
Areechen said:
Recently i bought v20 us996 unlocked us cellular.
And it's automatically updated to us99610n.
The signal was lost after that.
What I've done after following this thread instruction:
1. Downgrade to us99610f via patched LGUP. Success.
2. Unlock bootloader via LG developer web. Failed.
I inputted imei & device ID 64 digits. But it's unmatch.
What's wrong with my step?
I'm using adb & got device ID.
My v20 condition now is most basic apps force closed.
I would like to unlock via dirtysanta, but I'm kind of confused. This is my first time using adb.
I hope to get some help in here
FYI I'm in Indonesia.
Thanks.
Click to expand...
Click to collapse
unlock bootloader via LG web can be use with US996 UNLOCKED Version only, in your case US CELLULAR, you should follow the DirtySanta method to unlock your bootloader and the rest still be the same with the unlocked version.
Hope this help.
crs77 said:
You have saved my ass! I thanked you, and rated your post as excellent, but i feel the need to also post a thank you! Merry Christmas, Happy Holidays and may you have a Happy New Year!
Click to expand...
Click to collapse
Thank you. I'm glad this help and Happy New Year.
ttnduy said:
unlock bootloader via LG web can be use with US996 UNLOCKED Version only, in your case US CELLULAR, you should follow the DirtySanta method to unlock your bootloader and the rest still be the same with the unlocked version.
Hope this help.
Click to expand...
Click to collapse
Hi ttnduy,
OK I'll try it. I'll post if i found some problem.
Thanks for your response.
Hi, i have a honor 8 FRD-L09 unlocked bootloader, I don't know what was the original rom. I can't start it, I tried to install many versions, with dload nothing is working it stops at 5% and gives an error,I achieved to get one at 25% but it then failed but with fastboot and huawei extractor im able to install recovery,boot,system img files but it doesn't changes anything. I have access to erecovery but when I try to connect to a wifi it says that it's a wrong password even though im sure it's the right. If anyone is able to help me it could be nice, Thank you.
I installed twrp recovery but it still boots on emui erecovery.
Hello OG_Winzer
I installed twrp recovery but it still boots on emui erecovery.
Click to expand...
Click to collapse
You need to remove your USB cable to boot on TWRP (press "Power" and "Vol+" buttons, and only release "Power" - only hold "Vol+" - button when first blue screen appears).
If your phone is stuck on message "Device is booting...", you flashed a wrong TWRP version. Ask me if you want to try an another version.
But firstly, did you try this how-to (dload folder method): https://forum.xda-developers.com/honor-8/how-to/problem-frd-l09-t3596449 ?
Is there a model number written bottom back of your phone? (real FRD-L09 model?)
Good luck! =)
Micdu70 said:
Hello OG_Winzer
You need to remove your USB cable to boot on TWRP (press "Power" and "Vol+" buttons, and only release "Power" - only hold "Vol+" - button when first blue screen appears).
If your phone is stuck on message "Device is booting...", you flashed a wrong TWRP version. Ask me if you want to try an another version.
But firstly, did you try this how-to (dload folder method): https://forum.xda-developers.com/honor-8/how-to/problem-frd-l09-t3596449 ?
Is there a model number written bottom back of your phone? (real FRD-L09 model?)
Good luck! =)
Click to expand...
Click to collapse
I just tried this dload method but the software installation failed at 30%. I don't even know if flashing twrp is really useful and the number on the back of the phone is FRD-L09. I don't know what to do.
OG_Winzer said:
I just tried this dload method but the software installation failed at 30%. I don't even know if flashing twrp is really useful and the number on the back of the phone is FRD-L09. I don't know what to do.
Click to expand...
Click to collapse
Is it "Rollback package" UPDATE.APP which fail at 30%? Try "firmware B131" UPDATE.APP directly, if you have not.
I don't know about extracting ".img" from an UPDATE.APP file and flashing them... seems dangerous. ^^
If you boot on TWRP, you will be able to follow this thing (use FRD-L09 link and do all steps and step 5. fully: "Dlload For FRD-L09" flash to complete properly): https://forum.xda-developers.com/honor-8/how-to/guide-honor-8-to-frd-l19-t3632220
I can't help you more if it fails again, sorry...
Micdu70 said:
Is it "Rollback package" UPDATE.APP which fail at 30%? Try "firmware B131" UPDATE.APP directly, if you have not.
I don't know about extracting ".img" from an UPDATE.APP file and flashing them... seems dangerous. ^^
If you boot on TWRP, you will be able to follow this thing (use FRD-L09 link and do all steps and step 5. fully: "Dlload For FRD-L09" flash to complete properly): https://forum.xda-developers.com/honor-8/how-to/guide-honor-8-to-frd-l19-t3632220
I can't help you more if it fails again, sorry...
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Click to collapse
Rollback package is okay but the firmware fails. I've tried the method with twrp but system.img won't install. I even tried to extract it and install it with fastboot but it says "cannot load system.img"
OG_Winzer said:
Rollback package is okay but the firmware fails. I've tried the method with twrp but system.img won't install. I even tried to extract it and install it with fastboot but it says "cannot load system.img"
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Click to collapse
Try this 10 steps, that's the last idea I could give you...
0. Need an unlocked bootloader / Knowing how to boot on bootloader and use adb/fastboot command-line tools. (GUIDE HERE)
1. Download TWRP:
-- 1a) Recent version (EMUI 5.x installed firmware): twrp-3.1.1-1-frd.img and use fastboot command to flash it
Code:
fastboot flash recovery twrp-3.1.1-1-frd.img
>>>> If phone is stuck on message "device is booting now..." when you try to boot TWRP, use old version.
-- 1b) Old version (EMUI 4.1 installed firmware): twrp-3.0.2-0-frd-modaco-rc1.img and use fastboot command to flash it
Code:
fastboot flash recovery twrp-3.0.2-0-frd-modaco-rc1.img
2. Download this modded FRD-L09C432B131 firmware (.zip): here
3. Copy the zip file to your SD card. (You can do that when your phone is booted on TWRP: plug your USB cable)
4. In TWRP, go to "Wipe" > "Format Data".
5. In TWRP, go to "Flash" > Select the zip file and flash!
6. When finished, do step 4 again before rebooting your phone!
7. Phone can take some minutes to boot, take it easy! If it works, download "stock" (original) B131 firmware: https://www.hihonor.com/uk/support/details/index.html?DOC_ID=92101
8. Open the zip file and extract "dload" folder on your computer. Then copy the "dload" folder inside your SD card (root of the SD card).
9. Flash it with "Power" + "Vol-" + "Vol+" buttons.
10. Last step (RECOMMENDED) - Factory reset: how-to
:fingers-crossed:
As above stated I've bricked my LG V20. Completely black screen, no download mode, no anything.
I've taken a few steps towards unbricking it and none of them were successful:
Uppercut and LGUP (device not found)
QFIL (Sahara errors and connection errors)
Either I screwed up something in the "revival" process, there is another method I don't know about or the only thing left for me is buying a new board.
I would greatly appreciate help.
MarkusPolska said:
As above stated I've bricked my LG V20. Completely black screen, no download mode, no anything.
I've taken a few steps towards unbricking it and none of them were successful:
Uppercut and LGUP (device not found)
QFIL (Sahara errors and connection errors)
Either I screwed up something in the "revival" process, there is another method I don't know about or the only thing left for me is buying a new board.
I would greatly appreciate help.
Click to expand...
Click to collapse
Once you flash h918 firmware on a non h918 you're done, there's no recovering it.
Sent from my LG-H910 using XDA Labs
cnjax said:
Once you flash h918 firmware on a non h918 you're done, there's no recovering it.
Sent from my LG-H910 using XDA Labs
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Click to collapse
So i guess that swapping boards is the only thing i have left.
MarkusPolska said:
So i guess that swapping boards is the only thing i have left.
Click to expand...
Click to collapse
Yep or get a new phone
Sent from my LG-H910 using XDA Labs
EDIT: forum made me remove all links to post, but then let me edit and added some back.
I have just a little experience with rooting, just enough knowledge to be dangerous, but I'll try to help anyway.
I thought I had bricked my phone this weekend, but managed to get it going again.
Wrote this up from memory, but pretty sure its right.
I needed to do this because download didn't work, ie Volume up + plug usb to PC = download mode and if you start the patched lgup and it doesn't find your v20.
At this point, I thought the phone was bricked, so had nothing to lose.
Install fastboot and adb: link
Download H915 v10e KDZ . H91510e_00_VTR_CA_OP_1205.kdz.
Download latest LT Extractor SW . https://forum.xda-developers.com/showthread.php?t=2600575
Run the extractor sw, select the kdz file downloaded above and extract DZ file from it
Select DZ file, and extract lafxxx.bin
REMOVE ANY NUMBER FROM THE NAME OF FILES and change ext to .img ( SUPPOSE YOU GET laf21345.bin THEN RENAME TO laf.img)
Note that laf is "LG Advanced Flash".* It loads download mode and lets you write a new kdz.
Copy laf.img to folder with fastboot installed in step 1
Download and install lg v20 usb driver, under "LG Universal Mobile Drivers Download" at this link:
https://www.lg.com/us/support/help-library/lg-mobile-drivers-and-software-CT10000027-20150179827560
Hold Volume down then plug usb to PC to put phone into fastboot mode.
Go to windows Device Manager, and should be a row for android.* Click and make sure its working properly.
Run Command.com, go to folder with fastboot,then run
fastboot devices
fastboot responds with device info.* If not, figure out why before proceeding.
fastboot erase recovery
fastboot erase laf
fastboot*flash*laf laf.img
fastboot reboot
exit
You should be able to connect in download mode now.