This Guide will explain how to unlock your LG G8X
* I am not responsible for bricked devices, dead SD cards, thermonuclear war,
* or you getting fired because the alarm app failed. Please do some research
* YOU are choosing to make these modifications, and if
* you blame me in any way for what happens to your device, I will laugh at you.
*Wait, what? No. Me or somebody else will help you
Make sure you have "Enable OEM Unlock" enabled in developer options, along with USB Debugging. Download everything given in the downloads section. Backup EFS using QPST.
How to backup EFS (xqcn) through QPST?
In phone, dial *#546368#*850#, you’ll be in hidden menu now. G
Go to SVC Menu>Port Check Test> Enable Port Check. Connect Phone to PC, select “File transfer” mode in your phone.
Now, open QPST
Click on “Add Ports”
Uncheck “Show Serial and USB/QC Diagnostics ports only”
Choose COM* - USB/Unknown (LGE Mobile USB Serial Port, LMG850.....)
Now click OK
Click on “Start Clients”
Choose “Software Download”
Choose Backup, and hit start. This will save the config to xqcn file.
Booting into EDL:
Note: Do while phone is booted, in normal mode.
1. Plug in your Phone to your PC
2. Press and hold Power and Volume Down
3. As soon as your screen is blank, rapidly start pressing volume up.
4. If you've successfully booted into EDL, your screen will be completely blank and the device manager will show (Under COM Ports): Qualcomm HS-USB QDLoader 9008
Now Let’s UNLOCK!!!