1). Root Required
2). Root Explorer or Rom Tool Lite installed (with root Permissions)
Before Proceeding Please Unlock your phone with the Thread given below...
all Credits to ysabxe
Please Credit to the above & following
Also for Detailed Procedure
this link by pvinodnayak
Just Download the rar file named 'Carrier'.
Unzip / unrar it to Your Notebook/System. You wil get a Folder named Carrier.
Copy it(Carrier Folder) with the Original 'Carrier' Folder that Present in the Device. if asks for Overwrite, Please Proceed with Pleasure.
& Here you can see the Option Enabled, without booting the phone... if not seen then Please Reboot, so as to Function Properly.
Pros: It works on LG G2 LS980 ZV7/ZV8/ZVA, &
"No Hope that all Works, but for SURE that ALL Works"