Database Users

Huawei P9 Lite stuck on bootloop, can't enter recovery mode

Hello, I'm new to xda, in fact I registered just to ask for help. My p9 lite got stuck on huawei logo, when i try to turn off the device it just reboots 2 times and then just stays on huawei logo. I can enter fastboot and rescue mode, but i have not enabled usb debugging and oem unlock on the device earlier. To be honest this is my first android device, in the past i used only windows phones, so you could say i'm completely new to this. Any suggestions on how to recover my phone or flash any rom into it? I'd be very glad if someone helped me find the solution to this problem. Not sure if i made a thread in the correct place, direct me if i'm mistaken

There are few different versions of P9 Lite, look at the back of the phone to the bottom to see the numbers beside VSN and let us know.
1) Also when the phone is turned off plug in the usb to a computer or charging adapter
2) Hold down volume up & power
3) Let go of the power button when you feel the buzz while still holding the volume up button
4) Download latest version & recovery.
5) Go to Settings>Developer Options>USB Debugging On
5B) If you don't see Developer Options in settings, then go to Settings>About Phone>Build Number & ( tap the Build Number untill it unlocks)
6) Update us on the status, hope it works out.

GloryNation said:
There are few different versions of P9 Lite, look at the back of the phone to the bottom to see the numbers beside VSN and let us know.
1) Also when the phone is turned off plug in the usb to a computer or charging adapter
2) Hold down volume up & power
3) Let go of the power button when you feel the buzz while still holding the volume up button
4) Download latest version & recovery.
5) Go to Settings>Developer Options>USB Debugging On
5B) If you don't see Developer Options in settings, then go to Settings>About Phone>Build Number & ( tap the Build Number untill it unlocks)
6) Update us on the status, hope it works out.
Click to expand...
Click to collapse
tried to enter recovery, still not work. can't go to developer options because phone is stuck on logo, can't power off. couldn't find any solution that works anywhere, been searching for more than 6 hours, still no use. phone model is VNS-L21 forgot to mention earlier

What exactly were you doing before this happened and does your computer recognize your phone when plugged in at all.
Try holding volume up & down together & plug phone in when it reboots on you, & report back with what you see. If anything at all.

GloryNation said:
What exactly were you doing before this happened and does your computer recognize your phone when plugged in at all.
Try holding volume up & down together & plug phone in when it reboots on you, & report back with what you see. If anything at all.
Click to expand...
Click to collapse
I tried to install nougat update, computer recognizes it only in fastboot. holding volume buttons haven't changed anything still no progress. the thing is i had installed nougat a moth or so ago and it worked fine, then rolled back to marshmallow and now this. i'm pretty sure i tried to install correct package, because it was the same i had installed earlier

Did you download a adb tool on your computer that have the 'fastboot.exe' file? If so open that folder,
Have the mouse curser hover in that folder, hold down shift & right click the mouse
Open command prompt
Connect phone as is in fastboot mode
Type adb devices & press enter
Type adb continue & press enter

Hi,
I have the same issue as ellanyx.
my phone can only be stucked while booting or if I connect my phone to a computer, I'm able to boot it in fastboot.
as ellanyx, I didn't enable usb-debug nor OEM unlock option...
so when I'm in fastboot, I type the command "fastboot oem unlock xxxxxx" (hopefully the different data needed are the correct ones mentioned on the box of the phone) I get this error message:
C:\Users\Dieu\Downloads\SRKToolHuawei-STABLE-V1.3-20160619>fastboot oem unlock xxxxx
...
FAILED (remote: Command not allowed)
finished. total time: 0.016s
and off course the other options like "fastboot flash recovery recovery.img "... doesn't work.
I can't use the adb commands neither.
when I type the commande, as mentioned above, "adb devices" or "adb continue", nothing works.
So I'm a bit desesperate
do you have any solution for this kind of issue?
thanks

Dude, so the last firmware on your phone was MM or N? If it was MM you should put stock firmware appropriate for your model in dload folder on SD card and put volume+volume-power, and thats it. If you stack on N,....then I dont know because dload method doesnt work with N, or maybe works if you can find stock firmware with recovery for N.
Regards

Unfortunately I can't update with the 3 button update otherwise it would indeed solvemy problem.

pyromana said:
Unfortunately I can't update with the 3 button update otherwise it would indeed solvemy problem.
Click to expand...
Click to collapse
Probably you didnt have correct Oeminfo for MM if dload method didnt work....Try to conect phone with Toolkit and follow procedure for flashing oeminfo and custombin, after that flash stock recovrry and b161 via dload metod. You will find it on forum here.
Regards

the procedure from SRK toolkit?
would it be possible to provide it? because I can't unlock the OEM and I didn't tick the USB debug think.

Maybe problem with the ps not phone so u can not connect with adb
Try with different pc you must have flash oem with fast boot without enable adb from phone if u in fastboot

I can only boot my phone in fastboot (vol- + power) and not in recovery (vol+ + power).
also when using the SRK toolkit, the first screen tells me to be sure that the usb debugging is enable, which I haven't done...
if I'm not mistaken, fastboot is to use the fastboot command and recovery the adb commands
the connection with fastboot works on my computer, the link is made. however when I type the command to unlock the OEM, I get an error stating that the command is not allowed.
when I use the SRK toolkit, with the different questions, he tries to connect the phone with adb and waiting.... waiting...
is there a command to reboot in recovery but from fastboot? in the otherway around it exists but it doesn't seem that from fastboot to recovery it exists.
thanks.

Alexxxx1 said:
Dude, so the last firmware on your phone was MM or N? If it was MM you should put stock firmware appropriate for your model in dload folder on SD card and put volume+volume-power, and thats it. If you stack on N,....then I dont know because dload method doesnt work with N, or maybe works if you can find stock firmware with recovery for N.
Regards
Click to expand...
Click to collapse
dload method works on N. I downgraded my phone from unofficial N update back to official MM update using this method yesterday. You just have to enable OEM at developer options on settings.

It looks like people can't be bothered to read the 1st post properly before they reply.
HE CAN NOT BOOT TO ANDROID SO HE CAN NOT ENABLE OEM OR ACTIVATE USB DEBUGGING!!!!
What he CAN do, is go into eRecovery and Fastboot.
With that in mind, I would suggest using the dload method through fastboot.
Also, make sure it is Huawei SRK Tools 2.0 that is used, as it actually asks if you are in debug mode or fastboot.
Note that there is a few bugs in SRK 2.0:
The TWRP recovery file has the wrong filename in the package, so it WILL fail unless you name it correctly.
Also, when trying to root, do NOT use the "P9 Lite" method as that WILL fail too. Use the "P9/P9 Plus" method.
I am trying to set up a complete guide that can restore the phone when it is stuck in fastboot, however I apparently went a step too far...

ellanyx said:
Hello, I'm new to xda, in fact I registered just to ask for help. My p9 lite got stuck on huawei logo, when i try to turn off the device it just reboots 2 times and then just stays on huawei logo. I can enter fastboot and rescue mode, but i have not enabled usb debugging and oem unlock on the device earlier. To be honest this is my first android device, in the past i used only windows phones, so you could say i'm completely new to this. Any suggestions on how to recover my phone or flash any rom into it? I'd be very glad if someone helped me find the solution to this problem. Not sure if i made a thread in the correct place, direct me if i'm mistaken[/QUOTE
Do you have TWRP recovery ?
---------- Post added at 09:55 AM ---------- Previous post was at 09:50 AM ----------
ellanyx said:
Hello, I'm new to xda, in fact I registered just to ask for help. My p9 lite got stuck on huawei logo, when i try to turn off the device it just reboots 2 times and then just stays on huawei logo. I can enter fastboot and rescue mode, but i have not enabled usb debugging and oem unlock on the device earlier. To be honest this is my first android device, in the past i used only windows phones, so you could say i'm completely new to this. Any suggestions on how to recover my phone or flash any rom into it? I'd be very glad if someone helped me find the solution to this problem. Not sure if i made a thread in the correct place, direct me if i'm mistaken
Click to expand...
Click to collapse
Boot into fastboot mode and flash a custom recovery by meticulus. Link : meticulus.co.vu
Then whenyou get stuck hold power and vol down button for 2 minutes the phone will reboot and then when it says that your device has been unlocked and cant be trusted then only press vol up key ( dont press power button then). The u get into huawei recovery. From that u should power off the phone. Now get a custom rom by meticulus into your device sd card ( Cyanogenmod 13 is recommended ). Then insert sd card in a powered off phone. Now press vol up and power key and flash gapps and custom rom and you are good to go.
Click to expand...
Click to collapse

So, MY question:
I have tried 4 times to get Nougat installed, but every time I got the SMALL package (1.25gb) which means it is not complete.
I decided to try ONE more time, but think I have made a serious mistake.
I was on B161 and tried to downgrade to B160 without upgrading to Nougat first.
This has caused my phone to be stuck at boot with the message "Your device is booting now..."
I can NOT get into eRecovery or fastboot no matter what I do.
If I just leave the phone, then it discharge very fast, but as soon as I plug it in, it starts up and gets stuck at the same screen again.
Does anyone have ANY idea about how I can get out of this problem?
UPDATE:
I have managed to boot to fastboot while connected to my pc.
The phone is unlocked but FRP is LOCKED, which means I can't flash anything.
I read about using Miracle Loader to remove the FRP lock, but it can't "see" my phone. Maybe I am doing it wrong?

SnowmanDK said:
So, MY question:
I have tried 4 times to get Nougat installed, but every time I got the SMALL package (1.25gb) which means it is not complete.
I decided to try ONE more time, but think I have made a serious mistake.
I was on B161 and tried to downgrade to B160 without upgrading to Nougat first.
This has caused my phone to be stuck at boot with the message "Your device is booting now..."
I can NOT get into eRecovery or fastboot no matter what I do.
If I just leave the phone, then it discharge very fast, but as soon as I plug it in, it starts up and gets stuck at the same screen again.
Does anyone have ANY idea about how I can get out of this problem?
UPDATE:
I have managed to boot to fastboot while connected to my pc.
The phone is unlocked but FRP is LOCKED, which means I can't flash anything.
I read about using Miracle Loader to remove the FRP lock, but it can't "see" my phone. Maybe I am doing it wrong?
Click to expand...
Click to collapse
Try to relock and then unlock the bootloader again. And make sure oem unlocking is enabled in dev options

Arsaam said:
Try to relock and then unlock the bootloader again. And make sure oem unlocking is enabled in dev options
Click to expand...
Click to collapse
Please read my previous post again
I can NOT boot normally. And as FRP is locked, then I can't relock or unlock the bootloader.

SnowmanDK said:
Please read my previous post again
I can NOT boot normally. And as FRP is locked, then I can't relock or unlock the bootloader.
Click to expand...
Click to collapse
Go to fast boot mode and from their try to flash meticulus recovery.
You can also try the adb method as well.
Visit meticulus.co.vu

[Sharing Method] Bootloader Locked+Dead Boot+OEM Lock+Recovery Stuck

Hello XDA
As title say, I 'm going share my experience in this thread.
History
I purchased this device almost 8 month back.Purchased from a local store.Was very smooth and i was satisfied with the performance.Battery was good.Got regular update and these updates are from google,so why not install it,right?Then this Android N came,and i was so happy.7.0.0 was good.Then the nightmare 7.1.2 came.Phone started to lag continuously,Battery drained too much.But I was like Okay.May be this will fixed in new update.Then suddenly one day my phone was stuck.Not booting.Stucked at Google.I understood that phone already booted and fingerprint was too working but it showed nothing on display just black light.I was afraid as i didn't purchase it from Google Play or any authorized seller.So no warranty or chance of having replacement.So I started searching about this issue and found not only me many people are facing this.But there are no proper guideline or solving this issue.Tried everything and ended up with Locked Bootloader Irony!
Journey
As i never try to mess with my phone because it was Nexus 5x! So i never touch OEM or try to unlock the bootloader.So i tried to access stock recovery,But Alas! in recovery Volume up and down wasn't working.So I couldn't wipe or factory reset.So Now ended up with :
1.Locked Bootloader
2.Locked OEM
3.Recovery Stuck
Googled and found many solutions but none of them came to solve my issue.So i thought why not flash stock rom.But HOW! Cause fastboot only work with unlocked bootloader.And you can't unlock bootloader when your OEM is locked and you can't unlock it with fastboot.It can be only unlocked from developer option only.GOD!
Now I have only 2 options left:
1.Fastboot mod where no functions working
2.Download Mod (This will save you)
Now fastboot option is out and only download mod option is available.So what can i do with Download Mod?
LGUP TOOL helped me.Downloaded a tot file for Global version (LGH791) and flashed it and stucked at google logo and in recovery too.But next time i flashed the same file in a different way.Ok here it is:
1.Drivers are important here.I'm using windows 10.I have adb and fastboot and Lg drivers.Workplace okay.
2.Opened device manager and change the com port of Android phone 3 to 41. Port Changed!
3.Connected my phone to pc using 3rd party cable (Careful here,try to use original cable.) and entered into download mod and.
4.Opened LGUP Tool ,checked REFURBISHED mod,checked BIN file and select the tot file downloaded before.And quicky close it.(No need to click start)
5.Then again opened lg tool and click start.(BIN Checked and it showed the previously selected tot file).No need add anything new this time,just open and click START.
6.Rebooted and again stucked at Google screen.But wait! recovery is working.Pressing and holding volume up button for a while then a android logo with red cross inside will come up.Now holding power button and volume down button at the same time,Recovery will show and menu is working.Great!
7.Now Wiped cache and factory reset.And after that selected Apply update from Adb sideload
8.My device was connected to pc from the beginning,right? Now i downloaded a file previously called bullhead-ota-opp2.170420.019-c449d2bb.zip from Google Nexus 5x OTA update page.
9.In Adb folder,copied the file and named it ota.zip.Opened a command prompt using shift+right click in the folder.Phone was on Adb sideload mode.Typing this command adb sideload ota.zip
10.This took more than 8-9 minutes to finish.After flashing and phone rebooted.WOW
11.Couldn't believe my eyes.The OTA update was about Android O.I quickly enabled the developer menu and made oem unlcocked and usb debugging on.Boot into bootloader and unlock bootloader with this command fastboot flashing unlock
12.Now bootloader is unlocked and i flashed TWRP recovery for future need.
13.Rebooted the phone and after using for 1 minute the phone freezed again
14.This is the end of the story for today.
Planning
I'm thinking the OTA update was the problem.Now I'm downloading 6.0.1 version.And will do a clean install.Let's see what happens next.
Any kind of help is appreciated.If you think there is something i'm missing here then please suggest.
And Thanks to XDA.I got all these helps from here.Will update the post tomorrow.

You downloaded Android O Developer Preview. Final OTAs are here:
https://developers.google.com/android/ota
Just try flashing newest Factory Image via fastboot, but don't forget to flash TWRP back:
https://developers.google.com/android/images

TBH I NEVER thought this phone will be dead by hardware failure all of a sudden, I dont mind another few hundreds bucks but the problem now is the fking data within it.
Cant even pass google logo if you choose Recovery Mode
GG LG, well played

I have a 16gb variant dead....same issue like urs .....can i use the same lgh791 tot file?... in fastboot it says lgh791 16gb

usefully
usefully

I STRONGLY recommend that the original post is corrected to change "Download mod" to "Download mode" in all of its four occurences.
Same for one ocurrence of "Fastboot mod".
It is horribly confusing as it is, as calling them "mod" implies some modification you have to apply to the phone (be it software or hardware).

same of my expirience, flash 4CoreOreo..
my nexus 5x now is fully working

the_uker said:
I STRONGLY recommend that the original post is corrected to change "Download mod" to "Download mode" in all of its four occurences.
Same for one ocurrence of "Fastboot mod".
It is horribly confusing as it is, as calling them "mod" implies some modification you have to apply to the phone (be it software or hardware).
Click to expand...
Click to collapse
I suppose that makes sense. Then again, when an instruction is telling you to boot into download mod.....using common sense I'm gonna understand that's a typo and they meant download mode. But you're right, for some folks that may be a bit of a challenge. Common sense isn't as common as it was when I was young.

And the links?
I'm brazilian and i'm having a hard time to find the links to download stuff. Mine is dead and bootloader blocked. The tutorial seems to work but i can't understand well

Interesting. Thanks

Stuck in Firmware Update

I was trying to update with LGUP application for firmware update but didn't success, so I removed the USB cable and pressed Volume down and power button to restart. But it went straight into Firmware Update and LGUP application can't find the port.
So, my phone is stucking in Firmware update screen, please help me how to restore the firmware and get out from Firmware Update screen, many thanks and greatly appreciated.

Hold the power button until you get a black screen. Download LG Mobile Support tool and the LG Drivers. Plug USB In and then hold the Power + Volume Up key. On your screen, click Upgrade Recovery. From there, you can do a factory reset through download mode of your phone.

Enter download mode and connect the phone in the PC. Download LG brige and open it. When you are inside the programe you will see a window of Software update enter here and there is an option that is for bad installation otas (to reinstall and correct errors). Use this and I think this will handle.
Another option I think is using LG Up you will see your device in download mode. Try to enter download mode and see if this works also.

Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.

gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
In older LG phones work LG Flashtool (2014)...Maybe with this you can flash KDZ firmware https://forum.xda-developers.com/showthread.php?t=2797190

gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
I have the same issue - I was on Lineage os and flashing the OTA update caused bootloop to recovery. So I wanted to flash back to stock using LGUP and 14A. I did that before without issues.
This time though all installed fine but after reboot the phone immediately goes to fastboot, exactly as described above. I just spend several hours trying to fix it but with no results. The LG Bridge won't recognize the phone no matter what I do in Windows (tried 3 different PCs). On a Mac it will start connecting and will end up saying "you need to enable MTP connection".
From what I garther the stock rom flashed fine - the factory reset works, even shows "erasing data", the LG UP recognizes the phone as 14A (I tried 11A, 13A too - seems to install fine but goes immediately to fastboot after reboot).
The only thing I realized I did different when flashing the stock rom with LGUP was not using the original LG USB cable. But reflashing with original cable makes not difference now - still going to fastboot.
Any help would be greatly appreciated.

Have you guys been able to do the Upgrade recovery in the LG support tool? Did it work? It starts fine for me but after downloading the recovery file I always get and error, see the screenshot.
I was able to grab the kdz file and tried to flash it with LGUP but still the same thing. It seems like it flashes fine but after reboot it immediately goes to fastboot

kloubik said:
Have you guys been able to do the Upgrade recovery in the LG support tool? Did it work? It starts fine for me but after downloading the recovery file I always get and error, see the screenshot.
I was able to grab the kdz file and tried to flash it with LGUP but still the same thing. It seems like it flashes fine but after reboot it immediately goes to fastboot
Click to expand...
Click to collapse
Sadly I'm in the same boat as well. I'll pull some of their error messages I've gotten with LG Flash Tool this afternoon. I've tried 2014 and 2017. Both to no success.
I suspect it may be something with the /misc partition. Im going out on a limb, but I'm guessing that the AOSP and Lineage ROMs may touch misc. That partition may have some key identifiers for the LG tools. And the KDZ doesn't have a misc partition embedded inside it.

I was hoping the kdz file I was able to grab from the Lg Support tool would be different from regular stock rom 14a that is available around the internet but it appears to be exactly the same file (based on the file size). My original hope was that the file would support "Refurbish" option in the LGUP tool but it only works with "Upgrade".
I wonder if the "Refurbish" option would fix this and re-flashed all partitions - if only we could find a kdz file that would work with the refurbish option. So far all files I tried (11a, 13a, 14a) only support the upgrade option.

Thanks for all of your helps, I used LGUP and WondersMobile application on the computer and LGUP can not see the port. I did un-install the WondersMobile and LGUP can see the port and finally upgraded to latest firmware.

gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
kloubik said:
I have the same issue - I was on Lineage os and flashing the OTA update caused bootloop to recovery. So I wanted to flash back to stock using LGUP and 14A. I did that before without issues.
This time though all installed fine but after reboot the phone immediately goes to fastboot, exactly as described above. I just spend several hours trying to fix it but with no results. The LG Bridge won't recognize the phone no matter what I do in Windows (tried 3 different PCs). On a Mac it will start connecting and will end up saying "you need to enable MTP connection".
From what I garther the stock rom flashed fine - the factory reset works, even shows "erasing data", the LG UP recognizes the phone as 14A (I tried 11A, 13A too - seems to install fine but goes immediately to fastboot after reboot).
The only thing I realized I did different when flashing the stock rom with LGUP was not using the original LG USB cable. But reflashing with original cable makes not difference now - still going to fastboot.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
I too am having same problem. I've tried all the images from 11A to 14A, all of them flash with no errors on LGUP and every time LGUP detects the phone as having the last version flashed. Unfortunately, the phone also boots to fastboot every time. Nothing else to add to your descriptions at this time I'm afraid...
gewecht said:
Sadly I'm in the same boat as well. I'll pull some of their error messages I've gotten with LG Flash Tool this afternoon. I've tried 2014 and 2017. Both to no success.
I suspect it may be something with the /misc partition. Im going out on a limb, but I'm guessing that the AOSP and Lineage ROMs may touch misc. That partition may have some key identifiers for the LG tools. And the KDZ doesn't have a misc partition embedded inside it.
Click to expand...
Click to collapse
I am absolutely positive my problem is at least in part due to a messed up /misc partition though. @gqo actually described what I did pretty thoroughly in his thread, albeit in a G5. Post #9 has the fix but it didn't work for me.
I've also stumbled upon a menu under the Firmware Update screen that I had never seen before and cannot fin any mention to... Would any of you guys know what it is for? It reads something like:
Code:
** SELECT MENU **
** Select : Power Key(Long) **
** Move : Power Key(Short) **
-> MA-USB(WIFI) DL
POWER OFF
PHONE INFO
BACK
Okay, I figured it out. The menu, at least the first option, appears to be for Wi-Fi firmware update. I wonder what file the phone actually downloads... And if it would be able to fix our phones. The only unprotected network I had in hand was a mobile hotspot in my not-so-LTE Nexus 5, so I got as far the firmware download start but didn't risk it on such a slow and unpredictable network. On top of that my Nexus 5 has also gotten pretty good at bootlooping, that's why I got this G6 in the first place. If anyone out there has a reliable unprotected network and nerves of steel it could be interesting to see if the outcome of this update is different from the LGUP one.

How do you access this menu?
What I started working on yesterday is trying to build a image file for the Qualcomm Flash Image loader and see if I can flash the phone using this tool... But I have never used this tool before, right now it does not detect my phone - I need to work on that + see if I can correctly build the image file from kdz. I found some youtube step by step tutorials so we will see. I will post update on the progress tonight or tomorrow.

kloubik said:
How do you access this menu?
What I started working on yesterday is trying to build a image file for the Qualcomm Flash Image loader and see if I can flash the phone using this tool... But I have never used this tool before, right now it does not detect my phone - I need to work on that + see if I can correctly build the image file from kdz. I found some youtube step by step tutorials so we will see. I will post update on the progress tonight or tomorrow.
Click to expand...
Click to collapse
I'm not sure if there's a better way to do it, but I access it by removing the usb cable after I successfully get in Download Mode. Then I'm not sure if there's any specific key combo, I've been randomly pressing the power and the volume down buttons and at some point I get into that menu. In the menu though, for some reason, I think I can only select an option if I long press both the volume down and power buttons. The "POWER OFF" option has come in handy because so far is the only way I can actually turn my phone off. The "PHONE INFO" hasn't worked for me yet. The menu also reacts when you add/remove the microsd card... I wonder if it can be used for something other than a WiFi firmware upgrade. I haven't had the chance to connect the phone to a computer to see how the device is recognized, if at all.
And that image you're working on sounds like a neat idea, I wish I could help but I'm afraid I wouldn't have the skill. I may be able to test though. Anyway, Godspeed!

Unundra said:
I too am having same problem. I've tried all the images from 11A to 14A, all of them flash with no errors on LGUP and every time LGUP detects the phone as having the last version flashed. Unfortunately, the phone also boots to fastboot every time. Nothing else to add to your descriptions at this time I'm afraid...
I am absolutely positive my problem is at least in part due to a messed up /misc partition though. @gqo actually described what I did pretty thoroughly in his thread, albeit in a G5. Post #9 has the fix but it didn't work for me.
I've also stumbled upon a menu under the Firmware Update screen that I had never seen before and cannot fin any mention to... Would any of you guys know what it is for? It reads something like:
Code:
** SELECT MENU **
** Select : Power Key(Long) **
** Move : Power Key(Short) **
-> MA-USB(WIFI) DL
POWER OFF
PHONE INFO
BACK
Okay, I figured it out. The menu, at least the first option, appears to be for Wi-Fi firmware update. I wonder what file the phone actually downloads... And if it would be able to fix our phones. The only unprotected network I had in hand was a mobile hotspot in my not-so-LTE Nexus 5, so I got as far the firmware download start but didn't risk it on such a slow and unpredictable network. On top of that my Nexus 5 has also gotten pretty good at bootlooping, that's why I got this G6 in the first place. If anyone out there has a reliable unprotected network and nerves of steel it could be interesting to see if the outcome of this update is different from the LGUP one.
Click to expand...
Click to collapse
I'll play around a bit and see if I can land on this menu. At this point I'll try anything. I'm on an iPhone until I get this fixed - so I'm motivated!
I can setup an open guest network off my main wi-fi this evening and see what I can find out.
EDIT Sorry, I tried playing around here, but I couldn't figure out how to get back into the the menu you uncovered. If you could give some instructions on how to do it, I'm happy to give it a shot on my device.

I was able to access the menu today...what worked for me was at the firmware screen unplug the usb cable and then press volume down and power button three times quickly. I tried to connect to a wifi and it does not really do anything. I think it just establishes wifi connection but it does not download anything on it's own - it's waiting for another connection.
Also I got stuck with building the image file from kdz, it has no information on partitions. At this point I decided to ship to LG for a quote and will see how much they will ask for a reflash.

I got as far as selecting a network and getting some sort of a download start screen, but I interrupted it right away so I wasn't sure the download would actually go through... Apparently it does not. If this menu has some sort of flashing capabilities though, it might be worth checking how secure it is. If someone can get it to download and flash a modded file perhaps there could be a chance of flashing a custom recovery or something... I'm thinking about those guys that have an unlockable bootloader (which we ironically also have now).
Anyway, all of this goes well beyond my skill so I followed your example and submitted a repair service request to LG. It'll take quite long but shipping is free, so I figured I'd give it a try. I'm assuming this is an easy fix with the right software tools, so I hope LG doesn't overcharge for it. I'm even half hoping they'll do it under the limited warranty... If I recall correctly unlocking the bootloader doesn't immediately void all warranty, there's room to prove the bootloader was never actually unlocked. And after all LG does say that once unlocked, it cannot be undone and our phones are, in fact, running stock firmware and have a locked bootloader.

Update: My phone was received today by LG. In LG's Track Repair page, the status briefly showed as Undergoing Diagnostic but quickly moved to Repair In Progress, it's current status. Given that LG was supposed to contact me in case the repair was not covered by the limited warranty, meaning that an extra fee would've to be paid, I'm assuming the phone will be fixed (if possible, that is) free of charge. I will update you guys again soon, but if anyone out there is still struggling with this issue I'd recommend considering sending the phone to LG.

I have the exact same problem. Please keep us in the loop of what happens to your phone with LG

My phone has been received by LG for this issue on 9/26. It quickly moved through diagnostic to "repair in progress" on the first day plus showed ETA back to me in 6 business days. Ever since that it's stuck in that mode, no update or contact from LG. I check the status every day - every day it says the same - ETA 6 business days. It's been a week and half now with no update. I kind of expected it's going to take 2-3 weeks but annoyed that they say 6 days ETA and then you don't hear from anyone for almost 2 weeks with no change in status.

Update #2: The status finally moved to Shipped To Customer. I haven't been contacted by LG yet, so I guess the phone could've been shipped fixed as much as it could've been shipped as is for being unfixable. Either way, I wasn't and most likely won't be charged. FedEx hasn't got an ETA for the delivery, but I'll let you guys know as soon as I get my phone back.
Edit: Got an e-mail from LG. It reads something like:
Defect: Software failure
Payment Type: NOT APPLICABLE
Repair Results: S/W upgrade (download)
Repair Cost: $ 0.00
Warranty Status: In Warranty
Tax: $ 0.00
Total: $ 0.00
I guess I got away with it, I hope you guys do too.
Sent from my Nexus 5 using Tapatalk

Oneplus 6T hard bricked to g.co/abh loop

hi yesterday i was far from home with 5% battery and i take some calls some photos and battery 0%
when i got home i plugged in and battery is too laow message screen appear and after the message:
The boot loader is unlocked and software integrity cannot be guaranteed. Any data stored on the device may be available to attackers. Do not store any sensitive data on the device.
Visit this link on another device to learn more:
g.co/ABH
can.t be power off when this message appear, i need to let battery drain and power key do nothing
and msmdownloand show nothing
Oneplus 6T on latest beta
Windows 10 i don.t know if has all drivers needed for a unbricked process

amkulcsar said:
hi yesterday i was far from home with 5% battery and i take some calls some photos and battery 0%
when i got home i plugged in and battery is too laow message screen appear and after the message:
The boot loader is unlocked and software integrity cannot be guaranteed. Any data stored on the device may be available to attackers. Do not store any sensitive data on the device.
Visit this link on another device to learn more:
g.co/ABH
can.t be power off when this message appear, i need to let battery drain and power key do nothing
and msmdownloand show nothing
Oneplus 6T on latest beta
Windows 10 i don.t know if has all drivers needed for a unbricked process
Click to expand...
Click to collapse
I've had this before. If your phone has fully discharged and you plug in the charger the phone will boot up and stay on that message.
Just leave it to charge for five minutes, unplug the charger, then force reboot it by holding the power and volume down buttons together until it reboots. It should then boot normally and then you can plug in and continue charging.

ebproject said:
I've had this before. If your phone has fully discharged and you plug in the charger the phone will boot up and stay on that message.
Just leave it to charge for five minutes, unplug the charger, then force reboot it by holding the power and volume down buttons together until it reboots. It should then boot normally and then you can plug in and continue charging.
Click to expand...
Click to collapse
SOLVED
wait till screen get of install drivers correctly then press volume keys (+ and -) and connect to pc, in device manager appear at ports as qualcom... and open msmdownload tool and press start

amkulcsar said:
SOLVED
wait till screen get of install drivers correctly then press volume keys (+ and -) and connect to pc, in device manager appear at ports as qualcom... and open msmdownload tool and press start
Click to expand...
Click to collapse
Yeah you didn't need to do that. Just disconnect the charger and hard reboot and you would have been fine like I said, but oh well.

amkulcsar said:
SOLVED
wait till screen get of install drivers correctly then press volume keys (+ and -) and connect to pc, in device manager appear at ports as qualcom... and open msmdownload tool and press start
Click to expand...
Click to collapse
Did you manage to get rid off the corrupted screen message doing this?

That's a standard message if you've unlocked your bootloader. It doesn't signify corruption or an actual issue. You won't get rid of it without locking your bootloader.

Hello everyone, I unlocked my bootloader, but unfortunately I made an error when unlocking it but flashing it. so that he writes me when starting qualcom crashdump mode. and I don't know how to get out of it. also where I get the original onplus6 t software. and i work with linux via terminal. who can help me with this? on the one hand, where can I get the original os9 andriod software? and the second question is how I get the whole thing back on my cell phone and that it comes out of this warning from the grass dump

Hello. Please look on XDA for MSM tool for your device (enchilada or fajita depending on 6 or 6t). It will reinstall OOS back on your phone and relock the bootloader. There are a few videos on YouTube that will guide you through the process. It's a (short) but stressful process, but it does really work.

carrabelloy said:
Hello everyone, I unlocked my bootloader, but unfortunately I made an error when unlocking it but flashing it. so that he writes me when starting qualcom crashdump mode. and I don't know how to get out of it. also where I get the original onplus6 t software. and i work with linux via terminal. who can help me with this? on the one hand, where can I get the original os9 andriod software? and the second question is how I get the whole thing back on my cell phone and that it comes out of this warning from the grass dump
Click to expand...
Click to collapse
If your original plan was to get custom firmware don't bother with msm tool and getting stock, it's unnecessary. Twrp can be booted from fastboot if your bootloader is unlocked and you can do anything you need to do from there.

carrabelloy said:
Hello everyone, I unlocked my bootloader, but unfortunately I made an error when unlocking it but flashing it. so that he writes me when starting qualcom crashdump mode. and I don't know how to get out of it. also where I get the original onplus6 t software. and i work with linux via terminal. who can help me with this? on the one hand, where can I get the original os9 andriod software? and the second question is how I get the whole thing back on my cell phone and that it comes out of this warning from the grass dump
Click to expand...
Click to collapse
I'm in the same boat. Have you found any solution yet? I also use linux.

Brettroth said:
If your original plan was to get custom firmware don't bother with msm tool and getting stock, it's unnecessary. Twrp can be booted from fastboot if your bootloader is unlocked and you can do anything you need to do from there.
Click to expand...
Click to collapse
This was my plan and I soon realized I was not ready. I have unlocked the phone and the bootloader but I'm stuck, not able to get twrp to flash. Here's my error message:
[email protected]:/home/chad/Downloads# fastboot flash recovery twrp.img
target reported max download size of 268435456 bytes
sending 'recovery' (32628 KB)...
OKAY [ 0.973s]
writing 'recovery'...
FAILED (remote: No such file or directory)
finished. total time: 0.975s
[email protected]:/home/chad/Downloads#

ce_lloyd said:
This was my plan and I soon realized I was not ready. I have unlocked the phone and the bootloader but I'm stuck, not able to get twrp to flash. Here's my error message:
[email protected]:/home/chad/Downloads# fastboot flash recovery twrp.img
target reported max download size of 268435456 bytes
sending 'recovery' (32628 KB)...
OKAY [ 0.973s]
writing 'recovery'...
FAILED (remote: No such file or directory)
finished. total time: 0.975s
[email protected]:/home/chad/Downloads#
Click to expand...
Click to collapse
Should be fastboot boot (path and filename of twrp.img) once it boots then you can flash twrp from within.

I have done that as well. It appears to work, but then I get QUALCOM CrashDump Mode Attempted to kill init! wxitcode=0x0000000b complete..and..exit
This is a T-Mobile branded phone, does that matter or change anything?

ce_lloyd said:
I have done that as well. It appears to work, but then I get QUALCOM CrashDump Mode Attempted to kill init! wxitcode=0x0000000b complete..and..exit
This is a T-Mobile branded phone, does that matter or change anything?
Click to expand...
Click to collapse
If you are on a11 you have to use the twrp.img that is posted on the cross development thread that works for opt6 and 6t. TWRP-3.6.0_11-OP6xT.img

At&t v35 unlocked wont work on verizon

Any way to make the att v35 work on verizon? It should have the hardware is it a firmware update ? I'm a bit noon level at all this custom Rom stuff. I need some directions if I am able to do something please

From my understanding, even flashing an AT&T model to USA unlocked firmware does NOT carrier unlock the phone. You have to get the carrier unlock code from AT&T.

eviling said:
Any way to make the att v35 work on verizon? It should have the hardware is it a firmware update ? I'm a bit noon level at all this custom Rom stuff. I need some directions if I am able to do something please
Click to expand...
Click to collapse
verizon=CDMA
ATT=GSM

az090631 said:
verizon=CDMA
ATT=GSM
Click to expand...
Click to collapse
Flashing to NAO carrier unlocked should give it CDMA bands, if V35 can be Frankenstein'ed like V30.
---------- Post added at 05:20 AM ---------- Previous post was at 05:18 AM ----------
Guyinlaca said:
From my understanding, even flashing an AT&T model to USA unlocked firmware does NOT carrier unlock the phone. You have to get the carrier unlock code from AT&T.
Click to expand...
Click to collapse
It's probably carrier unlocked, but hasn't been flashed to NAO carrier unlocked firmware so it still has the AT&T V35 bands.

ChazzMatt said:
Flashing to NAO carrier unlocked should give it CDMA bands, if V35 can be Frankenstein'ed like V30.
---------- Post added at 05:20 AM ---------- Previous post was at 05:18 AM ----------
It's probably carrier unlocked, but hasn't been flashed to NAO carrier unlocked firmware so it still has the AT&T V35 bands.
Click to expand...
Click to collapse
it is indeed carrier unlocked but the att version of the phone neglects the cdma bands im not an idiot <_< but i figured the hardswarts their should be a matter of firmware. do i need to root unlock and custom rom al to get this firmware? or can i just get the firmware updated through a kernal update or somehting? idk im so rusty at this **** lol

eviling said:
it is indeed carrier unlocked but the att version of the phone neglects the cdma bands im not an idiot <_< but i figured the hardswarts their should be a matter of firmware. do i need to root unlock and custom rom al to get this firmware? or can i just get the firmware updated through a kernal update or somehting? idk im so rusty at this **** lol
Click to expand...
Click to collapse
I'll quote myself again, because I did say what to do... then I'll give you more information.
ChazzMatt said:
It's probably carrier unlocked, but hasn't been flashed to NAO carrier unlocked firmware so it still has the AT&T V35 bands.
Click to expand...
Click to collapse
You need to use Dev Patched LGUP to cross flash to NAO carrier unlocked firmware.
You do NOT need to root. We do not have any custom ROMs for V35.
You just need the Dev Patched LGUP from one of the other threads and cross flash to NAO (North American Open Market) firmware over your AT&T V35 model.
KDZ
V350ULM20f_00_NAO_US_OP_0218.kdz
https://lg-firmwares.com/downloads-file/22230/V350ULM20f_00_NAO_US_OP_0218
Flash in Refurbish mode. Then Master Reset for good measure:
Master Reset -- using buttons:
1. Unplug phone and turn it OFF.
2. Press and hold the Power and Volume down buttons.
3. When the LG logo appears, quickly release the Power button only -- then immediately press Power button again, while STILL pressing the Volume down button until you see the screen to select Yes to erase and reset everything.
4. Release both buttons so you can make your choices.
With your device powered off, press and hold the Power button and Volume Down buttons simultaneously for a few seconds.
When the LG logo appears, quickly release and then re-hold the Power button while keep holding the Volume Down button.
Let go of the buttons when the onscreen menu appears.
When you see the option to Delete all user data (including LG and carrier apps) and reset all settings message prompt, press the Volume Down button to highlight Yes.
Then press the Power button to reset the device.
Wait until the reset is complete then reboot your device. If it’s able to boot up successfully, proceed with the initial setup.
Click to expand...
Click to collapse
Dev Patched LGUP
_________________
HOW TO INSTALL DEV PATCHED LGUP
1) DOWNLOAD THIS DUAL VERSION OF DEV PATCHED LGUP, made by @tecknight:
https://androidfilehost.com/?fid=11410963190603845019
(Or use attached file from bottom of this post. Thanks to @tecknight! Please go here and click the THANK BUTTON!)
2. Extract LGUP_DualMode.zip to a folder on your PC.
3. Browse into the folder and launch LGUP_Store_Frame_Ver_1_14_3.msi.
Follow the prompts to complete the install.
4. Then in that same folder, right click and select "Run as Administrator" on "SetDev.bat" to set LGUP to developer mode. READ THAT AGAIN.
5. Now, launch LGUP using the desktop shortcut created, NOT the folder icon!
As mentioned before, use REFURBISH or PARTITION DL modes. Refurbish is probably better.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
WARNING: In LGUP do NOT go messing with modes not mentioned in these instructions. Especially do NOT use Chip Erase.
https://9to5lg.com/lgup-1-15-manual-how-to-unbrick-restore-your-lg-devices-with-lgup/
3) ChipErase: Dangerous, This will erase IMEI/efs, Do not try this if you do not have a NV backup.
Click to expand...
Click to collapse
It's all fairly easy. Most people breeze right through this. But if you have any problems, go through this list:
* Make sure you in download mode BEFORE opening the patched LGUP file.
This is at the top of the list as some people forget to do that. The remainder are in no particular order. If that doesn't work,
* Try different USB port,
* Try different USB cable,
* Try different computer.
* Reinstall LG mobile drivers on your PC.
* Reinstall dev patched LGUP again.
* Reboot the computer.
If you ask for help, that's the list of items we are going to give you anyway.

ChazzMatt said:
I'll quote myself again, because I did say what to do... then I'll give you more information.
You need to use Dev Patched LGUP to cross flash to NAO carrier unlocked firmware.
You do NOT need to root. We do not have any custom ROMs for V35.
You just need the Dev Patched LGUP from one of the other threads and cross flash to NAO (North American Open Market) firmware over your AT&T V35 model.
Flash in Refurbish mode. Then Master Reset for good mesure:
Master Reset -- using buttons:
1. Unplug phone and turn it OFF.
2. Press and hold the Power and Volume down buttons.
3. When the LG logo appears, quickly release the Power button only -- then immediately press Power button again, while STILL pressing the Volume down button until you see the screen to select Yes to erase and reset everything.
4. Release both buttons so you can make your choices.
Dev Patched LGUP
https://www.lanzous.com/i3y5ocd
KDZ
V350ULM20d_00_NAO_US_OP_0612.kdz
https://lg-firmwares.com/downloads-file/20225/V350ULM20d_00_NAO_US_OP_0612.kdz
______
If that Dev Patched LGUP doesn't work, try this one below. Screenshot is just an example of how it is flashed, but it's for a different model.
_________________
HOW TO INSTALL DEV PATCHED LGUP
1) DOWNLOAD THIS DUAL VERSION OF DEV PATCHED LGUP, made by @tecknight:
https://androidfilehost.com/?fid=11410963190603845019
(Or use attached file from bottom of this post. Thanks to @tecknight! Please go here and click the THANK BUTTON!)
2. Extract LGUP_DualMode.zip to a folder on your PC.
3. Browse into the folder and launch LGUP_Store_Frame_Ver_1_14_3.msi.
Follow the prompts to complete the install.
4. In that folder, right click and select "Run as Administrator" on "SetDev.bat" to set LGUP to developer mode
5. Launch LGUP using the desktop shortcut.
As mentioned before, use REFURBISH or PARTITION DL modes. Refurbish is probably better.
WARNING: In LGUP do NOT go messing with modes not mentioned in these instructions. Especially do NOT use Chip Erase.
https://9to5lg.com/lgup-1-15-manual-how-to-unbrick-restore-your-lg-devices-with-lgup/
It's all fairly easy. Most people breeze right through this. But if you have any problems, go through this list:
Make sure you in download mode BEFORE opening the patched LGUP file.
This is at the top of the list as some people forget to do that. The remainder are in no particular order. If that doesn't work,
Try different USB port,
Try different USB cable,
Try different computer.
Reinstall LG mobile drivers on your PC.
Reinstall dev patched LGUP again.
Reboot the computer.
If you ask for help, that's the list of items we are going to give you anyway.
Click to expand...
Click to collapse
im sorry forgive my ignorance i looked up your initial insturctions to no result so i posted a replyu in a last bid attempt and low and behold it worked! thank you sir i was arguing with my womans saying it has to be possible thank you! and its 9.0! im sure i wont be getting another update now that its unlocked the way it is. but its getitng 4g lte from verizon on my company sim now i can cancle my plan saved me 200$ for sure my damn dog ate my company phone and i only had my old phone to use. got it unlocked from att since i bought it outright and it wouldnt get 4g lte (data) but appears to be working perfectl;y now! awsome! been working on this for 3 weeks lol was trying to trade my phone on facebook

eviling said:
im sorry forgive my ignorance i looked up your initial insturctions to no result so i posted a replyu in a last bid attempt and low and behold it worked! thank you sir i was arguing with my womans saying it has to be possible thank you! and its 9.0! im sure i wont be getting another update now that its unlocked the way it is. but its getitng 4g lte from verizon on my company sim now i can cancle my plan saved me 200$ for sure my damn dog ate my company phone and i only had my old phone to use. got it unlocked from att since i bought it outright and it wouldnt get 4g lte (data) but appears to be working perfectl;y now! awsome! been working on this for 3 weeks lol was trying to trade my phone on facebook
Click to expand...
Click to collapse
You're welcome!
For future updates, you'll flash future NAO KDZ releases via this same Dev Patched LGUP -- but next time you can use "Upgrade" mode instead of "Refurbish". It's like a manual OTA and will save your data.
Sent via open market LG US998 V30/V30+

ChazzMatt said:
I'll quote myself again, because I did say what to do... then I'll give you more information.
You need to use Dev Patched LGUP to cross flash to NAO carrier unlocked firmware.
You do NOT need to root. We do not have any custom ROMs for V35.
You just need the Dev Patched LGUP from one of the other threads and cross flash to NAO (North American Open Market) firmware over your AT&T V35 model.
Flash in Refurbish mode. Then Master Reset for good mesure:
Master Reset -- using buttons:
1. Unplug phone and turn it OFF.
2. Press and hold the Power and Volume down buttons.
3. When the LG logo appears, quickly release the Power button only -- then immediately press Power button again, while STILL pressing the Volume down button until you see the screen to select Yes to erase and reset everything.
4. Release both buttons so you can make your choices.
Dev Patched LGUP
https://www.lanzous.com/i3y5ocd
KDZ
V350ULM20d_00_NAO_US_OP_0612.kdz
https://lg-firmwares.com/downloads-file/20225/V350ULM20d_00_NAO_US_OP_0612.kdz
______
If that Dev Patched LGUP doesn't work, try this one below. Screenshot is just an example of how it is flashed, but it's for a different model.
_________________
HOW TO INSTALL DEV PATCHED LGUP
1) DOWNLOAD THIS DUAL VERSION OF DEV PATCHED LGUP, made by @tecknight:
https://androidfilehost.com/?fid=11410963190603845019
(Or use attached file from bottom of this post. Thanks to @tecknight! Please go here and click the THANK BUTTON!)
2. Extract LGUP_DualMode.zip to a folder on your PC.
3. Browse into the folder and launch LGUP_Store_Frame_Ver_1_14_3.msi.
Follow the prompts to complete the install.
4. In that folder, right click and select "Run as Administrator" on "SetDev.bat" to set LGUP to developer mode
5. Launch LGUP using the desktop shortcut.
As mentioned before, use REFURBISH or PARTITION DL modes. Refurbish is probably better.
WARNING: In LGUP do NOT go messing with modes not mentioned in these instructions. Especially do NOT use Chip Erase.
https://9to5lg.com/lgup-1-15-manual-how-to-unbrick-restore-your-lg-devices-with-lgup/
It's all fairly easy. Most people breeze right through this. But if you have any problems, go through this list:
Make sure you in download mode BEFORE opening the patched LGUP file.
This is at the top of the list as some people forget to do that. The remainder are in no particular order. If that doesn't work,
Try different USB port,
Try different USB cable,
Try different computer.
Reinstall LG mobile drivers on your PC.
Reinstall dev patched LGUP again.
Reboot the computer.
If you ask for help, that's the list of items we are going to give you anyway.
Click to expand...
Click to collapse
@ChazzMatt,
That's what I love about DEV patched LGUP--It let's you bend the rules and do some things that would normally require root access, specifically:
--DUMPing of any partition, allowing for data backup and recovery, even on encrypted partitions, since you can also dump the encrypt partition.
--Cross flashing .kdz's from other variants utilizing the same hardware
and
--Flashing only specific partitions from a given .kdz
and I definitely agree that CHIPERASE and BOARD DL are to be avoided--
The most useful options besides REFURBISH and UPGRADE are DUMP and possibly PARTITION DL
Sorry for inserting my two cents into your thread.
TecKnight

Hi.All.I have cross flashed LG v40 Hong Kong version Rom Android 9 with the Korean Android 10 using lgup.
THE Rom was installed but I lost radio.no signal. So then on the advice of a friend I flashed partition dl modem a and modem b from a European version 9.and when the phone rebooted it shows security warnings and says all slots are unbeatable. Any way to put oh in fastboot mode so that lgup can identify.Any easy way out.thx

serpent android said:
Hi.All.I have cross flashed LG v40 Hong Kong version Rom Android 9 with the Korean Android 10 using lgup.
THE Rom was installed but I lost radio.no signal. So then on the advice of a friend I flashed partition dl modem a and modem b from a European version 9.and when the phone rebooted it shows security warnings and says all slots are unbeatable. Any way to put oh in fastboot mode so that lgup can identify.Any easy way out.thx
Click to expand...
Click to collapse
First of all, these are LG V35 forums but that's fine I guess since the V35 and V40 are same exact when it comes to how to unbrick. You can't mix Android 9 and 10 like that, no wonder you got bricked. At this point, even if somehow you get into LG UP, make sure you don't use any options in LG UP or any other tool that you don't know about. Lot of people tend to use options like 'chiperase' thinking it will fix the phone but they make matters worse and permanently loose their IMEI and EFS partition info.
For LG UP you need download mode, not fastboot mode. Are you able to get to download mode by holding volume up button while the phone is turned off and by plugging in the USB cable that is connected to the computer? I think you should still be able to get into download mode even if phone can't boot but If you can't get into download mode this way and can't boot into android, the next option will be using QFIL/QPST by putting phone into EDL mode. Since the process of unbricking will be same for both V35 and V40 phones, I will briefly guide you here for others with V35 to see this info but if you need further help, it would be best to post in LG V40 forums. The QFIL/QPST folder and V35 engineering bootloader from link below work for both V35 and V40 but rest of files such as firehose and actual partition files are different between the two models.
First go to the LG V40 unlock guide post here: https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
and download QPST, firehose and v35eng bootloader files attached to the above post and thank the OP. You can just follow that guide as if you want to unlock bootloader but basically you are going to put phone in EDL mode using that guide so you can run QFIL and access partition table using partition manager and flash the files necessary for download mode. All you need is bootloader and and laf partitions to get into download mode which are abl_a or abl_b (based on which slot you are booting from, slot a or b), and laf_a or laf_b. Important to note that laf_a and laf_b are same exact files actually, same is true for abl_a and abl_b. I am uploading the files for V40 on Mega as these were too large for XDA but if anyone needs them for V35 just post here and me or someone else can upload them:
https://mega.nz/folder/o2xEnCSb#W5icT64hASwKk67G9IngEQ
MD5s: abl_a: 3a9e506523e92b6a242af2e1cb5987fd, abl_b: 3a9e506523e92b6a242af2e1cb5987fd, laf_a: cf9edf4748f768cfa3c88ca362ff36b3, laf_b: cf9edf4748f768cfa3c88ca362ff36b3
After you download attached files, flash abl_a file to abl_a partition, then abl_b file to abl_b partition, flash laf_a file to laf_a partition and laf_b file to laf_b partition. You can use Xsavi's guide to put the phone in EDL mode, start partition manager, then use the option load image and flash the files to their respective partitions. I don't remember if these are from Oreo or Pie as I don't own V40 anymore but I think for unbricking purposes it shouldn't matter as you are going to flash a whole KDZ on top of these anyways. Once done, turn phone off, start LG UP on your PC, hold volume up button while you attach the USB cable to the phone and it should put the phone in download mode. Use partition DL and flash full KDZ either Oreo or Pie first before you try going to Android 10, best would be flashing Oreo first as some people have had problems going straight to Pie or Android 10.

Android# said:
First of all, these are LG V35 forums but that's fine I guess since the V35 and V40 are same exact when it comes to how to unbrick. You can't mix Android 9 and 10 like that, no wonder you got bricked. At this point, even if somehow you get into LG UP, make sure you don't use any options in LG UP or any other tool that you don't know about. Lot of people tend to use options like 'chiperase' thinking it will fix the phone but they make matters worse and permanently loose their IMEI and EFS partition info.
For LG UP you need download mode, not fastboot mode. Are you able to get to download mode by holding volume up button while the phone is turned off and by plugging in the USB cable that is connected to the computer? I think you should still be able to get into download mode even if phone can't boot but If you can't get into download mode this way and can't boot into android, the next option will be using QFIL/QPST by putting phone into EDL mode. Since the process of unbricking will be same for both V35 and V40 phones, I will briefly guide you here for others with V35 to see this info but if you need further help, it would be best to post in LG V40 forums. The QFIL/QPST folder and V35 engineering bootloader from link below work for both V35 and V40 but rest of files such as firehose and actual partition files are different between the two models.
First go to the LG V40 unlock guide post here: https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
and download QPST, firehose and v35eng bootloader files attached to the above post and thank the OP. You can just follow that guide as if you want to unlock bootloader but basically you are going to put phone in EDL mode using that guide so you can run QFIL and access partition table using partition manager and flash the files necessary for download mode. All you need is bootloader and and laf partitions to get into download mode which are abl_a or abl_b (based on which slot you are booting from, slot a or b), and laf_a or laf_b. Important to note that laf_a and laf_b are same exact files actually, same is true for abl_a and abl_b. I am uploading the files for V40 on Mega as these were too large for XDA but if anyone needs them for V35 just post here and me or someone else can upload them:
https://mega.nz/folder/o2xEnCSb#W5icT64hASwKk67G9IngEQ
MD5s: abl_a: 3a9e506523e92b6a242af2e1cb5987fd, abl_b: 3a9e506523e92b6a242af2e1cb5987fd, laf_a: cf9edf4748f768cfa3c88ca362ff36b3, laf_b: cf9edf4748f768cfa3c88ca362ff36b3
After you download attached files, flash abl_a file to abl_a partition, then abl_b file to abl_b partition, flash laf_a file to laf_a partition and laf_b file to laf_b partition. You can use Xsavi's guide to put the phone in EDL mode, start partition manager, then use the option load image and flash the files to their respective partitions. I don't remember if these are from Oreo or Pie as I don't own V40 anymore but I think for unbricking purposes it shouldn't matter as you are going to flash a whole KDZ on top of these anyways. Once done, turn phone off, start LG UP on your PC, hold volume up button while you attach the USB cable to the phone and it should put the phone in download mode. Use partition DL and flash full KDZ either Oreo or Pie first before you try going to Android 10, best would be flashing Oreo first as some people have had problems going straight to Pie or Android 10.
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Thanks for the reply sir. Ur amazing.These set of instructions seem alot to me
Yes im doing the same to get into the dl mode but cant enter..by holding power and volume up whilst plugging the usb.but its stuck in a bootloop.

serpent android said:
Thanks for the reply sir. Ur amazing.These set of instructions seem alot to me
Yes im doing the same to get into the dl mode but cant enter..by holding power and volume up whilst plugging the usb.but its stuck in a bootloop.
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You don't need to hold power button. Phone needs to be turned off. Hold volume up and plug in usb cable. Since you are in bootloop, keep holding volume up button (don't hold power button) and plug usb cable in. Once the bootloop cycle restarts it should go in download mode, just don't let go of volume up button until in download mode. If you still can't enter download mode, you are pretty much out of options and have to use EDL mode as i explained above to unbrick your phone.

Android# said:
You don't need to hold power button. Phone needs to be turned off. Hold volume up and plug in usb cable. Since you are in bootloop, keep holding volume up button (don't hold power button) and plug usb cable in. Once the bootloop cycle restarts it should go in download mode, just don't let go of volume up button until in download mode. If you still can't enter download mode, you are pretty much out of options and have to use EDL mode as i explained above to unbrick your phone.
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Thanks a lot. Yes i am holdingvolume up button and inserting usb c but it doesnt go into dowmload mode. But edl mode also requires to boot phone or can it work in a bootloop
---------- Post added at 10:50 AM ---------- Previous post was at 10:35 AM ----------
Anothet thing i want to add is that the ph is going in factory reset and even erases all user data.ive even done that. So that means that the ph isnt bricked? But even after that it doesnt go in DL mode

serpent android said:
Thanks a lot. Yes i am holdingvolume up button and inserting usb c but it doesnt go into dowmload mode. But edl mode also requires to boot phone or can it work in a bootloop
---------- Post added at 10:50 AM ---------- Previous post was at 10:35 AM ----------
Anothet thing i want to add is that the ph is going in factory reset and even erases all user data.ive even done that. So that means that the ph isnt bricked? But even after that it doesnt go in DL mode
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Yeah if you can't enter download mode then in my opinion using QFil and EDL mode is probably the only way to go. You need to read the unlock guide by Xsavi, that i linked earlier: https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
You are not required to boot the phone in order to enter EDL mode but it does require lot of patience as you have to hold volume down and power button until phone screen turns off suddenly to reboot, rapidly start pressing volume up key while still holding the volume down and power button. While you do this phone needs to be plugged in with usb cable and you have to have QFIL window open. Once the phone enters EDL mode, the screen will be dark and blank, but it is detected in QFIL window, you know that you are in EDL 9008 mode.
Unbricking your phone will require a lot of reading, patience, and making sure you understand what you are doing. It seems complicated and overwhelming but trust me when you have all the files setup and are ready to go, the whole process takes like 5 minutes and is not so hard. Again, the key is reading the guides and steps multiple times before you proceed so you know exactly what you are doing.

Android# said:
Yeah if you can't enter download mode then in my opinion using QFil and EDL mode is probably the only way to go. You need to read the unlock guide by Xsavi, that i linked earlier: https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
You are not required to boot the phone in order to enter EDL mode but it does require lot of patience as you have to hold volume down and power button until phone screen turns off suddenly to reboot, rapidly start pressing volume up key while still holding the volume down and power button. While you do this phone needs to be plugged in with usb cable and you have to have QFIL window open. Once the phone enters EDL mode, the screen will be dark and blank, but it is detected in QFIL window, you know that you are in EDL 9008 mode.
Unbricking your phone will require a lot of reading, patience, and making sure you understand what you are doing. It seems complicated and overwhelming but trust me when you have all the files setup and are ready to go, the whole process takes like 5 minutes and is not so hard. Again, the key is reading the guides and steps multiple times before you proceed so you know exactly what you are doing.
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Thanks im doing reading will getur expert advice soon

Also, factory reset will not help at this point because part of your rom is android 9 and other part is android 10. Erasing userdata and cache (factory reset) in itself will not fix that. What i don't understand though is that just flashing modem_a and modem_b from Android 9 should still allow you to enter download mode since you didn't alter bootloader or the laf partitions. In my opinion the phone should still be able to enter download mode even if it is bootlooping unless more changes were made to phone where bootloader and/or laf partitions were also altered. In any case, it doesn't matter anymore I guess.
Edit: Great, good luck, hope you get it unbricked!

Android# said:
Also, factory reset will not help at this point because part of your rom is android 9 and other part is android 10. Erasing userdata and cache (factory reset) in itself will not fix that. What i don't understand though is that just flashing modem_a and modem_b from Android 9 should still allow you to enter download mode since you didn't alter bootloader or the laf partitions. In my opinion the phone should still be able to enter download mode even if it is bootlooping unless more changes were made to phone where bootloader and/or laf partitions were also altered. In any case, it doesn't matter anymore I guess.
Edit: Great, good luck, hope you get it unbricked!
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Yes i didnt alter anything apart from the modem partitions thats it and dl mode unavailable.thats the issue.so does this necessarily mean that booting into qfil is the ultimate solution

Can you please tell me that i dont want bootloader unlocked just want dl mode..so for this do i have to follow the whole guide or just part of it to enter edl mode...pls enlighten

Hi sir. I have bootlted into qualcom 9008 mode used qfil and flashed the required partitions which were successfully done. But the phone still cannot boot into download mode . after i flashed i simply exit the qfil and. Piwer down he phone but it still does the same as before and cant get into download mode
.did i miss something