Re: I really need help for an update error I got on my LG G3
Download and install
LG Drivers
Download and install
LG Flash Tool
Download
stock firmware.
Place device in download mode. Power device off, while holding volume up, plug computer usb cable into your phone.
Run the LG Flash tool .exe file
Select “CDMA” as device type and "Diag” as phone mode.
Use the KDZ file you previously downloaded.
Use" Normal Flash" to flash without losing any data. This is to fix system errors. Flashing anything besides the same current firmware will result in a boot loop.*
Use "CSE Flash" to wipe all data and flash stock firmware onto your device. Use this if you are soft bricked,* boot looping, downgrading,* sideloading update or just need to go back to 100% stock.*
Click start and choose your country and language in the pop up window.
Hit ok and don't touch anything until it says 100%.