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How to Unlock Bootloader, Flash TWRP, and ROOT LG G4 H811 T-Mobile.

xda-developers - forum
Villagers Odyssey
Now, I know this tutorial exists all over the place, like one-click and UnjustifiedDev tutorial but none seemed to work. I am sharing the steps and method I used IN-DEPTH command for command on how to unlock, flash, and root the LG G4 from Tmobile.

NOTE THIS WILL FACTORY RESET YOUR DEVICE SO BACKUP ALL YOUR DATA

1. Activate developer settings by entering the about section and tapping build number 7 times.
2. Enter your developer settings and MAKE sure you have 'Allow OEM unlock' and 'USB Debugging' enabled.
3. Download the latest SuperSU zip and move it onto your SD card.
4. Using the android issue SDK. Open a command window and link it to your SDK folder where ADB is located (typically Platform-Tools)
5. Once the Command window is linked to the folder, connect your device via USB and allow the connection.
6. On the command window type 'adb reboot bootloader' and the device should reboot with the fastboot options on the upper left of the phone screen
7. Once again on the command window type 'fastboot oem unlock' and the command window should say OKAY and complete the action.
8. To Confirm that the device is unlocked type 'fastboot getvar unlock' and the window should respond with 'Unlock: YES'
9. Now download the latest available TWRP and drop it into the platform-tools folder where your ADB.exe is located.
10. On your Command Window type 'fastboot flash recovery "NAME OF TWRP FILE" if you get the error ' cannot load 'twrp-X.X.X.X-h811' you need to add .img to the end of the filename
11. Once the process completes you will see 'target reported max download size of 536870912 bytes
sending 'recovery' (32968 KB)...
OKAY [ 1.088s]
writing 'recovery'...
FAILED (remote: unknown command)
finished. total time:'
THE FAILED UNKNOWN COMMAND NOTICE CAN BE IGNORED
12. Once the process completes the device may not let you enter recovery from the traditional method using the buttons on the back of the phone so the easiest method is to, on your command window, type
'fastboot boot twrp-2.8.7.0-h811.img' and the device should respond within just a few seconds and reboot into TWRP.
13. Once the device reboots, enter twrp and tap on install and locate the SuperSU.zip and allow it to install.
14. Once the process completes successfully, wipe cache to be safe and reboot your device.
15. Resetup your device and restore your data if necessary and install a root checker from Google Play to confirm root!

THATS IT GUYS! This took me a long time to figure this out and it's a combination of different methods to get it to work!

All credit goes to the Devs of TWRP and SuperSU!

I posted in General because I'm a new user so please move to appropriate forums! thanks!
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