Hi everyone, I have a problem with my LG G6 H870 which concerns modding. I explain everything:
I have already modded my LG G6 in the past: root, custom roms, drivers and more, until I decided to return to the original system, the latest version, namely the v30b (in my case with the TIM brand (Italy).
Lately, with the desire to resume modding my device, I realize that LGUP does not work giving the following error: 0x81000302; and saying: Use the latest DLL. I confirm that I have changed versions of LGUP and also DLL, to no avail. The only version, of which I can't find the link, was one with a patch that allowed me to "force" the flashes. However, I don't want to use this latest version but permanently fix the problem. I think the problem lies in the last flash I made, in fact I find myself with an OEM (ORIGINAL) unlock key, which turns out to be wrong at the time of the flash via fastboot. Trying, when in doubt, to download another original key from the lgdeveloper site, I discover that the system replies with IMEI 0, thus understanding why the key was wrong. I would like to point out that I downloaded the current version (v30b TIM brand) from the LG-Firmwares website (with which I have never had any problem). I hope someone can help me to solve my problem permanently.
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Hi everyone,
Just a month ago I purchased what seems to be an AT&T branded LG G6 from ebay. The seller assured that despite the latter the device would've been usable in the UK (where I reside) and that is true as I can use my sim and make calls and send SMSs. I lately faced the charging issue due to moisture and fixed it by purchasing a new charging cable, but I the view of that I also want to flash my current firmware to a Uk unbranded version.
I visited the following [wesite](https://lg-kdz-firmware.com/download...10l/18642.html) to download a GB kdz file for my device but I was then taken to this other [website](https://lg-firmwares.com/) where I located an [EU Oreo kdz](https://lg-firmwares.com/downloads/d...477f64fee0d181) file. I then thought I might as well get this one and flash once for good.
I then downloaded LG UP software and tried to flash my device. Initially, I was facing the 'can't load model' error which I then fixed with the [uppercut software](http://www.**********.com/make-lgup-...uppercut-tool/). Once ready to flash and I get an error message reading "error: kdz file is invalid H871 -> h870".
Can anyone help me with this? First of all, I'd like to say, despite all the props to the developers that created these awesome tools, I couldn't find a single official and complete guide on the LG UP tool. Can anyone please provide me with an accurate guide for LG UP?
If the kdz file that I'm using is the issue, can you please provide me with the right firmware files?
Take a look at https://youtu.be/EcxL_ZvDLzg
Hi
I'm a long time Ericsson and Sony user, LG G6 is in fact the first LG mobile I'm using.
I'm a bit confused with the LG UP tool and Uppercut (when compared to Sony's Flashtool).
My phone is P4P region, however it was shipped to me with V20c-EUR-XX firmware (3.18.71 kernel, OPR1.170623.032, PHONE_SW_FULL_VERSION LGH870AT-00-V20c-EUR-XX-AUG-17-2018+0).
It doesn't have any Play (P4P) operator branding etc.
Unfortunately OTA upgrade nor LG Bridge are unable to upgrade it to latest firmware. lg-firmwares.com suggested that I should use uppercut and LG UP software to patch it.
Question 1:
Which firmware should I use ? I assume that as long as it already has a generic firmware, any EU open firmware should work. Is my assumption correct ?
Question 2:
When flashing the selected firmware, am I obliged to do a 'wipe' or can I upgrade it without loosing personal data on the phone ? If I can upgrade, which options should be selected in LG UP tool ?
Question 3: How reliable is Backup and Recovery tool when it comes to making a backup before flashing and restoring from this backup after the upgrade ? I'd like to move to at least v20i firmware.
Thanks in advance.
OK so I need some help...
When I originally purchased my LG G6 in June of 2019, I made sure it was a US997 model, but I ended up getting a BRIGHTPOINT version during my purchase. I went through the website to check the imei and the device ID and it gave me the not unlockable status.
After that, I went and decided to update the software manually to US99721e since it wouldn't OTA it and have been on that ever since. Now, I just recently tried while on the 21e software and I was given an unlock.bin code!
So if someone could help me out:
IF you're on a US997 BRIGHTPOINT G6:
-Download LG UP and UpperCut
-Download US997_21e_01_0211-UCL.kdz at lg-firmwares.com (this is the one I'm on, try this one first!)
-Once it's done, enable developer mode, adb debugging, and OEM unlock
-Go through the unlocking process
Please let me know what you find out!!
Is that only for us cellular?
Sent from my V60 ThinQ using XDA Labs
I have a brightpoint LG G6, which I bought as the seller claimed it was an unlocked US997, failing to share it was a OEM phone. I don't understand how this works please can you clarify? I tried the unlocking process and I have to supply my phone information to LG. Their database says it is a brightwell phone and so they won't release the unlock. Are you saying that after installing this ROM I don't need the key from LG to unlock the bootloader?
I have installed Uppercut and LGUP (1.14 as newer versions don't seem to work). I downloaded the ROM and I have the LGUP loaded. It shows the phone using US99721a. I have 4 process options, Refurbish, Upgrade, FOTA upgrade or Phonesettings which is the one to use?
It works! At least I obtained an unlock.bin file from LG. I need to work out which is the best LG G6 US997 ROM and how to load it when my SD card doesn't work. Any help or pointers to useful information much appreciated. For anyone else trying this here is what I found. I downloaded the LG windows drivers and LGUP 1.14 (There are newer versions but these don't work with uppercut. I downloaded Uppercut from XDA website and then you run Uppercut not LGUP. This immediately caused my virus checked to block it as it contains a trojan. I didn't like that but googled to find others had the same issue. There seems to be a way to load the correct file to get LGUP to work directly and I would recommend researching that but I disabled the virus software and proceeded. I used the UPGRADE option in LGUP - you need to reboot your phone into download mode. To do so, disconnect USB cable then Power off the phone completely. Now hold Volume Up then plug in USB cable at the same time. Make sure that LGUP is NOT running when you connect the USB cable and start it once you are in download mode. It loads the ROM very quickly and takes a bit longer to reboot and then it needs time to upgrade android as you have a 6 months newer version of Android 8. Then follow direction on the LG unlock site https://developer.lge.com/resource/mobile/RetrieveBootloader.dev. You will need to install ADK https://developer.android.com/studio/releases/platform-tools unzip after you download. LG emailed my unlock code immediately.
Yes, I can confirm that it works with the US997 model now. I already was at version US99721e so I didn't have to jump through the hoops to load this version. I went through the steps to unlock the bootloader via the LG developer website and voila, got sent the unlock.bin file, too.
Now I am pretty sure that I tried that in past perhaps 1-2 years ago and it didn't work, so perhaps LG has secretly flipped a few bits in their database to allow unlocking for these not quite brand new devices.
I just applied the unlock.bin and got the "cannot check for corruption" warning on the boot screen. So this is working - fantastic!
Now have to restore my device from the LG Backup I made before and put on the SD card.
I had tried the unlock last year but I didn't retry before I updated so it may have worked anyway and the update of the ROM wasn't needed. I unlocked the phone and installed Sky Hawk recovery but when that starts it asks for a deception password and nothing I have tried works. I'm not sure if that is a real issue or I can continue safely with flashing a new ROM. Has anyone worked through this issue?
challenger07 said:
I had tried the unlock last year but I didn't retry before I updated so it may have worked anyway and the update of the ROM wasn't needed. I unlocked the phone and installed Sky Hawk recovery but when that starts it asks for a deception password and nothing I have tried works. I'm not sure if that is a real issue or I can continue safely with flashing a new ROM. Has anyone worked through this issue?
Click to expand...
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First, when you're in Adroid remove all screen lock mechanisms, you can re-enable it later.
Enable USB debugging, do adb reboot bootloader and fastboot flash recovery with this recovery instead (rel_o2):
https://forum.xda-developers.com/lg-g6/development/recovery-twrp-3-2-1-unofficial-fixes-t3722199
Do the button combo to launch recovery. If you're in recovery, first reformat /data (you have to enter "yes") to get rid of encrption and after that flash the anti-root removal tool mentioned in the post. Then reboot into recovery and then flash Magisk and/or your ROM of choice. Note that I have only used this with stock ROM and Magisk and not tried any custom ROMs, but the thread has plenty of people having also tried other ROMs.
How do you even know if you have a Brightpoint device?
I found out when I tried to unlock. http://mobile.developer.lge.com/
Thanks for the info. I'll dig into this once I know for sure that a version of Android 10 is available to load into the phone.
What I've been dealing with so far keeps asking for a 15 digit IMEI number. My phone only has a 14 digit value.
I pulled box (yes I kept it) and discovered that the IMEI is 15 digits. No idea why the value is the phone truncates the last digit. The site that checks IMEI numbers says that it is the platinum edition: US997PL. Gee, the box says that.
Hi
I had unlocked my lg g6 bootloader, and installed custom rom.
After few months with custom rom, I want to get back to the stock lg rom, with dual camera and L1 widevine.
So I tried to install the stock rom and relock bootloader:
Using LG up , downloaded .kdz file, and upercut, I get each time dll problem. The LG up version does not match with the phone version. I tried to place or replace some dll files found online in LGUP/common/LGUP_Common.dll
Nothing happens, I still have this issue.
Then, I tried with LG bridge (update - repair update).
It worked, I installed the stock rom. I still had the bootloader unlocked.
I locked the bootloader with adb and fastboot, and did factory reset.
So why I am posting this message ?
Because now, with the stock rom installed by LG bridge, I have L3 widevine and not L1. And the camera application (and all apps using the camera) does not work.
I think, I need to rewrite properly the original rom with LG up, but I don't know how to make it work properly. I used one time LG up by the past when I soft bricked my phone, and I did not get any dll issues.
Now, I am trying to do it, and nothing works. I tried 2 computers (1 windows, 1 linux+Windows VM) nothing.
kdz problem, dll problem, computer problem ? I don't know...
I really wish someone could help me
Thanks, very much.
If you are coming from Custom ROM to Stock, you need to flash Nougat first. If you dont your camera wont work.
I think that like my old LG L9 the G6 has a PROM/fuse bit which remembers if the bootloader had been unlocked once. This could explain the Widevine issue. Samsung introduced Knox years ago, which also won't ever forget unlocking and prevent further use of certain Samsung applications.
lecorbusier said:
I think that like my old LG L9 the G6 has a PROM/fuse bit which remembers if the bootloader had been unlocked once. This could explain the Widevine issue. Samsung introduced Knox years ago, which also won't ever forget unlocking and prevent further use of certain Samsung applications.
Click to expand...
Click to collapse
Thanks for this response
coco74x said:
Thanks for this response
Click to expand...
Click to collapse
Did you solve?
Cause I did almost same things as you: wanted to go back to stock after experiencing some random reboots with lots of custom roms (which worked till few months ago) and so flashed back the original Pie (H87030b_00_OPEN_EU_OP_1105.kdz) via LGUP but ended up with camera and flash not working at all.
While on custom rom everything works smooth, a part from random reboots
Right now I'm flashing H87011i_00_OPEN_EU_OP_0108.kdz (Nougat) but I'm not sure if it will solve the problem.
Thanks in advance
EDIT: camera is working on Nougat, butnow I have to deal with that damn "moisture" notification
EDIT2: after almost a full day of updates I can use my LG G6 with stock rom, stock camera and be very happy with it ;-) thanks @SkylineDiT for the tip of going back to Nougat, didn't know it.
Hi there, its me again. A while back, I wrote a post about my Nokia Lumia 520 not entering Flashing mode. While this issue is resolved, I am still unable to properly use the device.
I had recently decided that I would like a different operating system on it. Something that would at the very least allow me to use the phone as an actual phone. The solution: Android.
While flashing mode is now available to me, I am unable to unlock the bootloader. I made the mistake of upgrading to the latest firmware, which is not supported by WPinsider. To fix this, I would need to downgrade the firmware to an older build that WPinsider can work with. I have found one, but it doesn't work. WPinsider reports The GPT read isn't valid. Couldn't fine the text "EFI PART". I am unsure of what this means.
I would like to know of anyone knows what this error exactly means, and if there is a way to fix it.
Thanks in advance!