[OFFICIAL][RS988][RETAIL-UNLOCKED][BRIGHTHOUSE-FIX][DOWNGRADE][N->M]

[TheGingerSage]

Stuck on BrightHouse Nougat? NOT ANYMORE!!!
For the RETAIL UNLOCKED USA VARIANT RS988 ONLY!!!
THIS IS NOT A UNIVERSAL LG DEVICE CURE ALL!!!!

-> Without autoprime None of this would be possible!

LG G5 ALL-IN-ONE THREAD​

y u quote OP?

Follow me on twitter for future updates on LG-related things - twitter.com/@utoprime

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Feeling extra generous? Feel free to contribute to my LG G5 fund...
click my name at the top of any post and hit donate or click here.

#TEAMCODEFIRE

UPPERCUT allows LGUP to instantly work with a ton of different LG models. No more hunting around for specific model files or being stuck without your model being detected. Simply install LGUP. Double-click the UPPERCUT.exe and LGUP will open and detect your device.​

Information:
What's LGUP? LGUP is LG's internal Windows-only tool for flashing LG devices with stock firmware in KDZ, DZ and TOT formats. Previously extra installers and unique settings were needed for each model. Many less popular devices didn't have the files needed to work with their device.Well with UPPERCUT just double-click the EXE and LGUP will open and recognize your device.

Requirements:
1. Windows computer or virtual machine.
2. LG's Windows USB drivers installed and working.
3. LGUP 1.14 installed
4. LG device must show in Windows Device Manager under "Ports" as a LG Serial COM port.
5. KDZ, DZ or TOT file for your device.

How-to:
1. With all requirements above met... download and unzip UPPERCUT.
2. Double-click the UPPERCUT.exe every time you want to use LGUP. It's that simple.

Downloads:
UPPERCUT | LGUP | LG G5 Files | LG USB Drivers
When LGUP works for your model please post it in the thread! List:
your model (H850, D852, F600L etc..)
the software build you were on before flashing in LGUP (10A, 22C, 30B etc..)
the KDZ or TOT name you flashed using LGUP (H91810i_00_1202.kdz etc..)

Versions:
1.0.0.0 - Supports LG devices using a MSM 8996/8994/8992/8976/8952/8939/8937/8916/8909/8226 chipset. Street Fighter 2 SFX.

Let me know which combos do/dont work for you... UPPERCUT version, LGUP version, Current phone software version and KDZ/TOT software version and if the KDZ/TOT is custom or official.

Devices Supported:
G4, G5, G6, V10, V20, Flex 2, G Pad X, K10 and many more!

FAQ:
Q: Why isn't this working?
A: UPPERCUT requires LGUP 1.14 (not 1.11) installed in its default location prior to running.

Q: Why isn't anything happening when I press the boxing glove picture in this thread?
A: Really? ...

Q: What is this?
A: This is the simplest way to make LGUP work with your LG device.

Q: Refurbish option in LGUP doesn't work, what now?
A: Boot into stock recovery after the flash finishes and perform a factory reset. This is the same outcome as if Refurbish was selected.

Q: Why does this TOT file keep failing?
A: In most cases you're either trying to downgrade and it has been blocked by your phones download mode (not anti-rollback fuse.. that is different)... OR you are trying to use a custom-made TOT file which is not official or signed by LG. Flash an official KDZ instead. Do not ask for KDZs in this thread.. not the place.

Q: Where can I find a KDZ for my phone?
A: This is not a KDZ thread. Take the KDZ questions elsewhere.

Q: Why is my anti-virus scanner flagging this?
A: It's a false positive. Scanners like Kaspersky know better and don't flag the app but some others do. See post #59 for more info.

Q: Why is my device's model not detected in LGUP?
A: Make sure your devices chipset is supported by UPPERCUT. All models and software variants may not be supported even though chipset is listed.
If using a confirmed working device with UPPERCUT but your device is still not detected in LGUP you may have a "corrupted" misc partition...
as a last resort it has been confirmed in post #70 that wiping misc then booting into download mode allows the device to be detected with UPPERCUT + LGUP 1.14. This may not always work. And without root you cannot do this.
​

For more G5 info see my All-in-One Thread HERE

Follow me on twitter for future updates on LG-related things - twitter.com/@utoprime

Find this thread helpful? Hit the Thanks button!
Feeling extra generous? Click my name at the top of any post and hit donate or click here.

#TEAMCODEFIRE
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Thank These Threads Above ^^^

Download ->
RS988 Build 11c TWRP Flashable Complete
RS988 Build 11c KDZ
UPPERCUT

Procedure ->
Flash Build 11c with TWRP -> Boot into force reboot loop.
Pull the battery and boot to Download Mode
Use UPPERCUT to REFURBISH Build 11c back onto your device with the Build 11c KDZ
SUCCESS!!!

Want Nougat for US back?
Just OTA back to Nougat for US

XDA:DevDB Information
Official RS988 USA Retail Unlocked BrightHouse Fix / Fully Functional Stock Downgrade, ROM for the LG G5

Contributors
CIGBURN, autoprime
ROM OS Version: 6.0.x Marshmallow
ROM Kernel: Linux 3.1.x
ROM Firmware Required: ANY Firmware Capable for RS988 Retail Unlocked Only
Based On: STOCK

Version Information
Status: Stable
Current Stable Version: FINAL
Stable Release Date: 2017-10-29

Created 2017-10-30
Last Updated 2017-12-22

 

[Awkydee]

Has anyone done this and can confirm working? I want to buy LG G5 RS988 but I need root!!

 

[Twiztidcouple]

Stuck on BrightHouse Nougat? NOT ANYMORE!!!
For the RETAIL UNLOCKED USA VARIANT RS988 ONLY!!!
THIS IS NOT A UNIVERSAL LG DEVICE CURE ALL!!!!

-> Without autoprime None of this would be possible!




Thank These Threads Above ^^^

Download ->
RS988 Build 11c TWRP Flashable Complete
RS988 Build 11c KDZ
UPPERCUT

Procedure ->
Flash Build 11c with TWRP -> Boot into force reboot loop.
Pull the battery and boot to Download Mode
Use UPPERCUT to REFURBISH Build 11c back onto your device with the Build 11c KDZ
SUCCESS!!!

Want Nougat for US back?
Just OTA back to Nougat for US

XDA:DevDB Information
Official RS988 USA Retail Unlocked BrightHouse Fix / Fully Fictional Stock Downgrade, ROM for the LG G5

Contributors
CIGBURN, autoprime
ROM OS Version: 6.0.x Marshmallow
ROM Kernel: Linux 3.1.x
ROM Firmware Required: ANY Firmware Capable for RS988 Retail Unlocked Only
Based On: STOCK

Version Information
Status: Stable
Current Stable Version: FINAL
Stable Release Date: 2017-10-29

Created 2017-10-30
Last Updated 2017-11-01

I did by accident Flash the 10h firmware and was stuck on brightpoint I can confirm that this method does work thank you

 

[TheTechHobbyist]

I followed all the steps, but I keep running into the same issue:
Using LGUP to flash the 11c kdz file, LGUP gets stuck at %10 showing the error report: "Error: 0x2BC, Invalid command response code = 0x80000121".
After that, my phone would only boot to Download Mode, so I had to use LGUP to flash a (Brightpoint) 10h kdz file. (LGUP had no issue with the 10h kdz file.)
Yes, I am using LGUP Store Version 1.14 and the DLL Version is 1.0.28.9
What am I doing wrong? I need to get rid of this Brightpoint issue in order to unlock the bootloader!
Wait, do you mean "Brighthouse" or "Brightpoint"?????????

 

[TheTechHobbyist]

I followed all the steps, but I keep running into the same issue:
Using LGUP to flash the 11c kdz file, LGUP gets stuck at %10 showing the error report: "Error: 0x2BC, Invalid command response code = 0x80000121".
After that, my phone would only boot to Download Mode, so I had to use LGUP to flash a (Brightpoint) 10h kdz file. (LGUP had no issue with the 10h kdz file.)
Yes, I am using LGUP Store Version 1.14 and the DLL Version is 1.0.28.9
What am I doing wrong? I need to get rid of this Brightpoint issue in order to unlock the bootloader!
Wait, do you mean "Brighthouse" or "Brightpoint"?????????

Never mind. I just realized this fix is for phones that were built for the open market and switched to brightpoint by accident. My phone (probably) came with Brightpoint. (I bought it used.)

 

[TheGingerSage]

Has anyone done this and can confirm working? I want to buy LG G5 RS988 but I need root!!

This is a fix for those who accidentally flashed bright house. I can 100% confirm that this works it even allows you to official ota back to nougat.

 

[TheGingerSage]

I followed all the steps, but I keep running into the same issue:
Using LGUP to flash the 11c kdz file, LGUP gets stuck at %10 showing the error report: "Error: 0x2BC, Invalid command response code = 0x80000121".
After that, my phone would only boot to Download Mode, so I had to use LGUP to flash a (Brightpoint) 10h kdz file. (LGUP had no issue with the 10h kdz file.)
Yes, I am using LGUP Store Version 1.14 and the DLL Version is 1.0.28.9
What am I doing wrong? I need to get rid of this Brightpoint issue in order to unlock the bootloader!
Wait, do you mean "Brighthouse" or "Brightpoint"?????????

You have to use twrp to flash the correct un-modified stock in the instructions and that will tell download mode that the usa fingerprint is on the phone and will allow you to use the refurbish option. You have to flash stock in twrp first before using LG UP. Please re-read the instructions in the OP, thanks!

 

[BahaEzawi]

i flashed the 11c full package using TWRP then refurbished the 11c KDZ using LGUP and UPPERCUT and took OTA to 11d after installation the phone required a PIN to power on the device and i entered my pin and it says wrong 29/30 left

 

[TheGingerSage]

i flashed the 11c full package using TWRP then refurbished the 11c KDZ using LGUP and UPPERCUT and took OTA to 11d after installation the phone required a PIN to power on the device and i entered my pin and it says wrong 29/30 left

This device setups with /data partition encryption. Do a factory reset with stock recovery to fix this.

 

[darkalexpp]

After carrying out the process, i can not enter the bootloader with:
adb reboot bootloader

then it restarts itself.
How can I access the bootloader?

 

[golfnz34me]

After carrying out the process, i can not enter the bootloader with:
adb reboot bootloader

then it restarts itself.
How can I access the bootloader?

Are you back on Marshmallow? If so then you can't reboot into bootloader anymore.

 

[asaf400]

I can confirm that It is working, I've first flashed the zipfile,
but then stayed in twrp to try and keep twrp as recovery in a cheeky way, by using adb and using the dd command I've overwritten twrp again to it's rightful partition,
pulling the battery afterwards, and reattempting to go into twrp, however it failed, after the recovery menu buttons (yes>yes) some red text appeared at the left top corner about MISMATCH, figures, 11c doesn't recognize the unlock..
I then returned to following the instructions, letting the phone boot loop (when getting into the encrypting you're data and the wallpaper),
Got into download mode, flashed 11c (I did have some wierd message about 'partitions have changed (system, backup gpt, and more..), would you like to continue?' Yes, I don't care, It's a kdz, I trust it..
Phone successfully flashed the kdz, and booted, although I had my heart drop, since in the past it happened to me and I couldn't fix it:
A few seconds (1 to 10) after boot finishes and setup wizard comes up, the device randomly reboots, without reason, and does so on all subsequent boots,
with the kdz returning the og stock recovery, I then opted to factory reset, after that boot was stable, and didn't restart, gone straight to checking updates, and 11d came up

Hope this helps anyone, I was stuck on 10h Brightpoint (rooted&magisk&xposed&twrp) for 2 years, no tethering and weird bugs, now on my path to nougat again, to have all my rooted&magisk&xposed&twrp back with security and bug fixes

Will update here when finished, PM me If I DONT (I hate when people don't update)

Edit #1: When 11d boots with bootloader unlocked there's 'your device cannot be checked for corruption' in a different way then 10h had
And, after the update to 11d, first boot failed because it requested my encryption unlock key, factory reset again, fixed it, boot is stable
11d is Android M 6.0.1

Edit #2: 11d has update to 21a, downloading now...

Edit #3: haven't updated yet, confirmed - 'adb reboot bootloader' getis into fastboot, flashing twrp worked, I'm going to skip the OTE update, and just flash the ZIP file (AFTER yet another wipe, and double check that 11d download has been canceled [someone was stuck because he tried to both flash while fota already downloaded])

Edit #4: Flashing 21a worked, but this time, I deleted "recovery-from-boot.p" file in the root of /system, and installed magisk, although, had to do another wipe (basically wipe every change..), now on 21a Stable boot

Edit #5: Again, 21a wanted to OTA to 21b, I skipped it, got into TWRP, and repeat steps to root 21a, Flash the Complete 21d zip, delete "recovery-from-boot.p" file in the root of /system, and reset the misc partition, to make sure TWRP and phone doesn't conflict (dd if=/dev/zero of=/dev/block/bootdevice/by-name/misc bs=256 count=1 conv=notrunc), flash magisk, phone boots successfully (one restart after setup wizard probably to properly set google account or something, after that, systemless xposed, and I'm golden..)

 

[hunnyhiteshseth]

Can uppercut be used to install 10h after 21d? Does it wipe away the userdata? I know I am trying to go the other way instead of what this thread intended. But I don't have any KDZ for any RS988 version after 10c. Flashing kdz of 10c using uppercut just aborts the process after 4%

Full Background:

My LG G5 (RS988) was already on 21d when it started throwing "System.ui is not responding error" after boot. The screen remains blank when error comes and closing it doesn't give access to unlock screen. However, it seems all other apps and processes are working fine in backend - just that home screen is unable to It was never rooted or had bootlocker unlocked. I am primarily interested in recovering my data, so factory reset is not an option for me. I cannot use ADB as I cannot unlock my screen because of this error.