LG V20 F800L stuck in static screen in download mode after failed root attempt - Can enter TWRP and fastboot but cannot update firmware - LG V20 Questions & Answers

Hello everyone,
I have an LG V20 F800L that got stuck in download mode with a static screen after a failed root attempt. While I am able to enter TWRP and fastboot modes, I am unable to update the firmware on my phone.
Initially, I can connect to Wi-Fi, but the phone gets stuck while updating, and I cannot access the home screen. I have left it overnight, but the phone remains in the same state.
When I try to upgrade or downgrade a .kdz file using the modified LGUP, the phone disconnects as soon as it resets to download mode and displays a static screen. The modified LGUP also detects my phone as LG-F800K.
I also noticed that my phone version has changed to F800K30h after unsuccessfully trying to follow the instructions in this post: https://forum.xda-developers.com/t/...00l-k-s-korean-variants.3730879/post-86823617
Does anyone have any idea how to fix this issue? I have tried multiple methods, but none of them seem to work.
Any help would be much appreciated. Thanks in advance!

514have said:
Hello everyone,
I have an LG V20 F800L that got stuck in download mode with a static screen after a failed root attempt. While I am able to enter TWRP and fastboot modes, I am unable to update the firmware on my phone.
Initially, I can connect to Wi-Fi, but the phone gets stuck while updating, and I cannot access the home screen. I have left it overnight, but the phone remains in the same state.
When I try to upgrade or downgrade a .kdz file using the modified LGUP, the phone disconnects as soon as it resets to download mode and displays a static screen. The modified LGUP also detects my phone as LG-F800K.
I also noticed that my phone version has changed to F800K30h after unsuccessfully trying to follow the instructions in this post: https://forum.xda-developers.com/t/...00l-k-s-korean-variants.3730879/post-86823617
Does anyone have any idea how to fix this issue? I have tried multiple methods, but none of them seem to work.
Any help would be much appreciated. Thanks in advance!
Click to expand...
Click to collapse
If you were able to root a static screen at download mode is normal it should not affect download mode. The miss match model number is normal with LGUP. Select PARTITION DL and flash kdz all files. You may want to also try a different usb cable. Also you may want to uninstall the LG drivers and use this one. usb drivers

Darnrain1 said:
If you were able to root a static screen at download mode is normal it should not affect download mode. The miss match model number is normal with LGUP. Select PARTITION DL and flash kdz all files. You may want to also try a different usb cable. Also you may want to uninstall the LG drivers and use this one. usb drivers
Click to expand...
Click to collapse
Thank you for taking the time to offer some advice.
I am currently on vacation and won't be able to try out your suggestions for a few weeks. However, when I get back, I will definitely give your recommendations a try.
Once again, thank you for your help and I'll be sure to let you know how it goes when I get the chance to try it out.

514have said:
Thank you for taking the time to offer some advice.
I am currently on vacation and won't be able to try out your suggestions for a few weeks. However, when I get back, I will definitely give your recommendations a try.
Once again, thank you for your help and I'll be sure to let you know how it goes when I get the chance to try it out.
Click to expand...
Click to collapse
Your welcome.

Related

[Q] Lg g pad 7.0 LTE stuck in bootloop

Please help. I know this is for the 8.3 but there is not thread for the 7.0. I am stuck in a bootloop. When I put in download mode it wont install the MTP drivers so the LG flash tool wont work. Also I can't find the KDZ for the v410 to do it with out the internet. Also It wont detect adb. That is really all i need. I must have gotten the prob.build mixed up with my g3 and I need to put the original one back on there. yes I have a back up of it, but I can't access the system files. Any help would be greatly appreciated.
zylith said:
Please help. I know this is for the 8.3 but there is not thread for the 7.0. I am stuck in a bootloop. When I put in download mode it wont install the MTP drivers so the LG flash tool wont work. Also I can't find the KDZ for the v410 to do it with out the internet. Also It wont detect adb. That is really all i need. I must have gotten the prob.build mixed up with my g3 and I need to put the original one back on there. yes I have a back up of it, but I can't access the system files. Any help would be greatly appreciated.
Click to expand...
Click to collapse
have you try installing mtp drivers directly in windows? not from the tablet?
Yes. Called lg. They are fixing it. Even though it is rooted.
zylith said:
Yes. Called lg. They are fixing it. Even though it is rooted.
Click to expand...
Click to collapse
Hi, zylith. I have the same tablet and same bootloop problem now. i cant find KDZ file for it.
Did LG fix your tab? Any suggestion for me? Please help. Thx a lot!!!
I know it's an old thread but I still need some help. I rooted my LG Gpad 400 and proceeded to install the bumped version of TWRP through flashify. It prompted me with an error and got stuck on LG logo. I managed to turn it off and on again after a while and it worked just fine (no twrp installed though but today I wanted to unlock the oem to flash TWRP through adb the more traditional way but my tablet was stuck in rebooting - booted up for a few seconds and started rebooting again. Iwent for factory reset since I didn't have any data on it so nothing to lose but now it's saying 'Factory reset processing...' and has beenm on this screen for good half an hour and counting. Please help.
Today my tablet is back to restarting constantly. I really don't know what to do and it makes the tablet unusable as I can't access the settings menu to extract IMEI necessary for OEM unlock. Please help x

[Q] KDZ Flash issues

Hello everyone,
So I basically made a noob mistake. I had a custom recovery installed on my d802 and I opted to update the software via the LG apps. Now I am stuck at the LG logo on start-up. Normally this wouldn't bother me so much, but the problem is when I try to flash the original firmware with the flash tool. I have looked everywhere and haven't found a proper answer (forgive me if I missed a thread).
The problem is that I get an error saying your phone is disconnected when I'm pretty sure its not, and the phone screen displays "fastboot: processing commands". I have tried a different usb cable, a different pc with different version of windows. But unlucky so far.
Apart from this though, I was wondering if I could flash the Italy lollipop KDZ? I am in Germany and since I have the same model number (D802) I might as well give it a try. What are your thoughts?
Any help from you guys is highly appreciated.
alimzia said:
Hello everyone,
So I basically made a noob mistake. I had a custom recovery installed on my d802 and I opted to update the software via the LG apps. Now I am stuck at the LG logo on start-up. Normally this wouldn't bother me so much, but the problem is when I try to flash the original firmware with the flash tool. I have looked everywhere and haven't found a proper answer (forgive me if I missed a thread).
The problem is that I get an error saying your phone is disconnected when I'm pretty sure its not, and the phone screen displays "fastboot: processing commands". I have tried a different usb cable, a different pc with different version of windows. But unlucky so far.
Apart from this though, I was wondering if I could flash the Italy lollipop KDZ? I am in Germany and since I have the same model number (D802) I might as well give it a try. What are your thoughts?
Any help from you guys is highly appreciated.
Click to expand...
Click to collapse
Hi!
Yes, I'm pretty sure you can flash the Italy .kdz, 'cause it's correspond, basically, to the open version. I think there is some bloatwares, but they can be remove by root. you can even flash the spanish .kdz, but there is vodafone's bloatwares inside.
But if you're stuck in fastboot, I don't know if you can access to download mode. Can you describe actual state or your phone? Do you have access to recovery? Download Mode? Can you boot?
casual_kikoo said:
Hi!
Yes, I'm pretty sure you can flash the Italy .kdz, 'cause it's correspond, basically, to the open version. I think there is some bloatwares, but they can be remove by root. you can even flash the spanish .kdz, but there is vodafone's bloatwares inside.
But if you're stuck in fastboot, I don't know if you can access to download mode. Can you describe actual state or your phone? Do you have access to recovery? Download Mode? Can you boot?
Click to expand...
Click to collapse
Whenever I try to move into download mode it automatically takes me to fastboot. I cant access recovery or hard reset. But yes the lg logo does come up and thats all, it evens goes as far as the second time the logo comes up and the leds come on. But thats about it. It shows download mode for a little while and then automatically goes into fastboot.
Thats all I have right now.
Well this is not pretty. I just realised my phone isn't getting into download mode. I was under the impression that getting into fastboot when connecting phone to pc is the normal case for everyone. But im supposed to get into download mode rather than fastboot, eh?
Now i'm really out of clues. Appreciate your help devs!

LG G2 - D802 - Bricked... need urgent help...

Hi,
I was installing MIUI v6, it did got install but many things were not working.
So i did the stupid thing and changed the kernal through twrp.
And NOW:
My phone is bricked, it stays on the LG logo.
I tried to go into downloading mode but it does not detect the usb to computer connection.
So I am unable to to use LG tool to install stock rom kdz.
because it does not detects the usb in downloading mode....
please help me around this problem.
my warrenty is over too.
qam47 said:
Hi,
I was installing MIUI v6, it did got install but many things were not working.
So i did the stupid thing and changed the kernal through twrp.
And NOW:
My phone is bricked, it stays on the LG logo.
I tried to go into downloading mode but it does not detect the usb to computer connection.
So I am unable to to use LG tool to install stock rom kdz.
because it does not detects the usb in downloading mode....
please help me around this problem.
my warrenty is over too.
Click to expand...
Click to collapse
I got the same problem here after using MIUI and trying to get out of it.
Stuck in bootloop, no recovery, download mode stuck at first screen, phone not being detected by pc and no flashing led anymore.
Anyone help us please, my phone is out of warranty too
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
everything you need is here.
check again if you don't have USB connection of any kind. If you do have something in the PC responding to the G2 being connected, it isn't a hard brick and you can fix it with this: http://forum.xda-developers.com/showthread.php?t=2582142
Otherwise you just have to do this short the caps thing. Be careful and renember that this is always a better option than staying with a bricked device. You can also try to give the phone to some experienced repaired and tell him about the method and how will it cost.
Rayaxe said:
http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
everything you need is here.
check again if you don't have USB connection of any kind. If you do have something in the PC responding to the G2 being connected, it isn't a hard brick and you can fix it with this: http://forum.xda-developers.com/showthread.php?t=2582142
Otherwise you just have to do this short the caps thing. Be careful and renember that this is always a better option than staying with a bricked device. You can also try to give the phone to some experienced repaired and tell him about the method and how will it cost.
Click to expand...
Click to collapse
Thanks for the reply.
But it says:
http://forum.xda-developers.com/showthread.php?t=2582142
VERY IMPORTANT!!!!!!!
You must use the img files that correspond to the ROM you have installed before getting the problem to avoid breaking your phone. The link above is for 10b_EUR_16G firmware version. So don't use those files if your firmware version was not that one. Instead you should look for img files corresponding to the current version installed in your phone. If you don't know what version you've installed then don't use this method because you will break your phone.
Click to expand...
Click to collapse
and i dont know which one to download.
Here is the link to Miui 6, I did install before crashing
http://forum.xda-developers.com/lg-g2/development/kk-miui-6-lg-g2-variants-based-stock-lg-t3106569.
...
You have to know which model your phone is.
Do you know your phone's IMEI? http://www.lgkdz.com/ Go here and it will get the file you need to download via your IMEI (even though it is risky to put the IMEI in the internet).
Otherwise you can just search for your kdz file by knowing what model you have and what stock rom you had last time. You can always revert to that.
Mine is D802 32GB, has V30b-EUR software. That is enough for me to get the correct kdz file even by searching in the links provided in the tutorials I mentioned in my last message
Rayaxe said:
You have to know which model your phone is.
Do you know your phone's IMEI? http://www.lgkdz.com/ Go here and it will get the file you need to download via your IMEI (even though it is risky to put the IMEI in the internet).
Otherwise you can just search for your kdz file by knowing what model you have and what stock rom you had last time. You can always revert to that.
Mine is D802 32GB, has V30b-EUR software. That is enough for me to get the correct kdz file even by searching in the links provided in the tutorials I mentioned in my last message
Click to expand...
Click to collapse
My phone is bootlooping and recognized as "LGE Android MTP Device" only,
I can't back to stock using kdz, can't ADB sideload
Any ideas how to solve it?
GoPogoOreo! said:
My phone is bootlooping and recognized as "LGE Android MTP Device" only,
I can't back to stock using kdz, can't ADB sideload
Any ideas how to solve it?
Click to expand...
Click to collapse
Do you have access to download mode? Since your PC recognizes the phone as MTP Device, I'm not sure but I think that's only possible if you have /system/ working since the other partitions don't have MTP support originally.
If you have that, go there: http://forum.xda-developers.com/showthread.php?t=2432476
Flash with the tot method and you should be good to go.
But wait for someone who can confirm what I'm saying since I'm no expert.
Rayaxe said:
Do you have access to download mode? Since your PC recognizes the phone as MTP Device, I'm not sure but I think that's only possible if you have /system/ working since the other partitions don't have MTP support originally.
If you have that, go there: http://forum.xda-developers.com/showthread.php?t=2432476
Flash with the tot method and you should be good to go.
But wait for someone who can confirm what I'm saying since I'm no expert.
Click to expand...
Click to collapse
I can access download mode, but when i connect my phone (on download mode) to my PC nothing happened, and my phone is not detected even as MTP device
GoPogoOreo! said:
I can access download mode, but when i connect my phone (on download mode) to my PC nothing happened, and my phone is not detected even as MTP device
Click to expand...
Click to collapse
samething with me please help

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

LG G6 H870 Stuck in Firmware Update

After installing an unofficial build of Pixel Experience and having some issues with it i decided to flash my G6 back to firmware, but when tried doing it with LG UP i kept giving me Error messages about DLL's not matching each time i did it and it was weird to me cause i flashed it to firmware before with all the same files and it worked just fine, i tried LG Bridge but it won't install as it's stopping at 14%, my G6 is now on the Frimware Update screen, when i reboot it by pressing Volume Down + Power Button it shows the G6 Logo and boots straight back into Firmware Update, any ideas what im supposed to do at this point?
protectedcharms said:
After installing an unofficial build of Pixel Experience and having some issues with it i decided to flash my G6 back to firmware, but when tried doing it with LG UP i kept giving me Error messages about DLL's not matching each time i did it and it was weird to me cause i flashed it to firmware before with all the same files and it worked just fine, i tried LG Bridge but it won't install as it's stopping at 14%, my G6 is now on the Frimware Update screen, when i reboot it by pressing Volume Down + Power Button it shows the G6 Logo and boots straight back into Firmware Update, any ideas what im supposed to do at this point?
Click to expand...
Click to collapse
Have you fixed the phone ? If not I can provide you tommorow with the exact files you need to get your device working, but mainly you need for lg up the lg v40 dll so your device can be recognized and then you need a kdz file ( stock software ) that you care going to flash on your device.
AlexMihai26 said:
Have you fixed the phone ? If not I can provide you tommorow with the exact files you need to get your device working, but mainly you need for lg up the lg v40 dll so your device can be recognized and then you need a kdz file ( stock software ) that you care going to flash on your device.
Click to expand...
Click to collapse
I haven't fixed it yet, it'd be lovely if you'd be able to provide those files.
protectedcharms said:
I haven't fixed it yet, it'd be lovely if you'd be able to provide those files.
Click to expand...
Click to collapse
Get the dev patched LG UP from this post:
https://forum.xda-developers.com/showpost.php?p=76510671&postcount=168
and get the KDZ firmware specific or compatible to your phone from the lg firmwares website (just google it for the website link). You should still be able to enter download mode. Start LG UP on your PC and connect USB cable to the phone. then restart the phone by holding vol-down and power buttons, once the phone screen flickers and it starts restarting, let go of power and vol-down buttons and hold the vol-up button. You should now be back in download mode. Good luck.
Android# said:
Get the dev patched LG UP from this post:
https://forum.xda-developers.com/showpost.php?p=76510671&postcount=168
and get the KDZ firmware specific or compatible to your phone from the lg firmwares website (just google it for the website link). You should still be able to enter download mode. Start LG UP on your PC and connect USB cable to the phone. then restart the phone by holding vol-down and power buttons, once the phone screen flickers and it starts restarting, let go of power and vol-down buttons and hold the vol-up button. You should now be back in download mode. Good luck.
Click to expand...
Click to collapse
I did what you advised yet im getting a 0x2000 error and can't proceed further
protectedcharms said:
I did what you advised yet im getting a 0x2000 error and can't proceed further
Click to expand...
Click to collapse
This error is probably due to older dll, you are still using the older LG UP still installed on your computer. Remember, to use the Dev patched LG UP, you just unzip the file you downloaded and go inside the folder and doubleclick on the LGUPD.exe to start it.
If that doesn't work, need more information:
Did you uninstall all LG UP before installing Dev patched LG UP? Make sure you uninstall all LG UP from your PC and then use the Dev patched LG UP directly from the downloaded folder. Make sure you reboot the computer afterwards before trying. Try different USB cable if you have one. Try different USB port on the computer.
Make sure you are opening/using the LG UP you just downloaded. Which option did you pick in LG UP? Try Partition DL or Refurbish, both options if either works? Do not try any options that you don't know about, some options can delete everything on phone including IMEI information so don't try options such as chip erase.
What is your phone's model number and which kdz are you using? Does 0x2000 error give any more information on the popup?
If none of this works, post back here.
Android# said:
This error is probably due to older dll, you are still using the older LG UP still installed on your computer. Remember, to use the Dev patched LG UP, you just unzip the file you downloaded and go inside the folder and doubleclick on the LGUPD.exe to start it.
If that doesn't work, need more information:
Did you uninstall all LG UP before installing Dev patched LG UP? Make sure you uninstall all LG UP from your PC and then use the Dev patched LG UP directly from the downloaded folder. Make sure you reboot the computer afterwards before trying. Try different USB cable if you have one. Try different USB port on the computer.
Make sure you are opening/using the LG UP you just downloaded. Which option did you pick in LG UP? Try Partition DL or Refurbish, both options if either works? Do not try any options that you don't know about, some options can delete everything on phone including IMEI information so don't try options such as chip erase.
What is your phone's model number and which kdz are you using? Does 0x2000 error give any more information on the popup?
If none of this works, post back here.
Click to expand...
Click to collapse
I've tried the provided dev lg up on a whole different pc, and that's the error im getting so im 100% sure it's not due to an older lgup, in the error message it shows that it's some kind of dll problem and i should install a new package .msi, i've tried different cables, ports, i did Partition DL & Refurbish, got 0x2000 both times

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