LG G2 AT&T CM13 (CyanogenMod 13) Marshmallow ROM [codename: d800]

This is an official NIGHTLY & SNAPSHOT CyanogenMod for LG G2 AT&T CM13 (cyanogenMod 13) Marshmallow ROM (Device Codename: d800). Official NIGHTLY build are automated builds which makes sure the build is not broken by daily code changes made by developers. NIGHTLY builds are not stable as compared to SNAPSHOT builds and may contain some minor bugs. Here is some brief explanation of the difference between a NIGHTLY and SNAPSHOT.

REQUIRED DOWNLOADS AND LINKS FOR THE CYANOGENMOD 13 LG G2 AT&T CM13 MARSHMALLOW CUSTOM ROM UPDATE GUIDE:

FLASHING OFFICIAL CYANOGENMOD 13 LG G2 AT&T CM13 MARSHMALLOW CUSTOM ROM UPDATE GUIDE:

1. Follow this if you are flashing CyanogenMod 13 for the first time to your AT&T LG G2, or coming from another ROM:

   This will delete all your data on your phone. You may consider backing up your phone data or take a nandroid backup. Here is how to take NANDROID backup using TWRP recovery.

   Points to NOTE on BACKUP:
   – Try to avoid restoring apps backup using Titanium Backup. It may break things up.
   – Don’t restore system data using Titanium Backup! It will definitely break the current installation.
   – It is also discouraged to Restoring Apps + Data using Titanium Backup.

   • Make sure you have a TWRP installed on your LG G2 AT&T.
     If you don’t have a recovery then download it from the above link and follow the below guide (Make sure the bootloader is unlocked):
     – How to flash TWRP using fastboot.
   • Download and Copy the GApps and CyanogenMod ROM for G2 AT&T ZIP to your device.
   • Boot into Recovery. Make sure to have already flashed a Custom recovery like CWM or TWRP on the phone.
   • Wipe data factory reset, Cache partition, Dalvik Cache and Format the System partition.
     – Here is a guide explaining how to wipe data using TWRP recovery.

     This will delete all your data on your phone. IGNORE IF YOU DON’T WANT TO OR IF YOU HAVE ALREADY DONE THIS. You may consider complete backup of your phone data or take a NANDROID backup of the current ROM.
     – How to backup all data on your Android Device.
     – how to take NANDROID backup using TWRP recovery.

   • First flash the CM ROM ZIP from device. Then flash the GApps zip from your device memory.
     – Here is a post explaining how to flash a custom ROM using TWRP recovery.
     Use the same guide to flash the GApps too.
   • Reboot and Enjoy the CyanogenMod 13 Marshmallow ROM on your LG G2 AT&T.

2. Upgrading from earlier version of CyanogenMod 13.0:

   • Copy the CyanogenMod 13 ROM ZIP file to your phone.
   • Boot into Recovery.
   • Flash the latest CM ROM ZIP from your phone.
     – Here is a post explaining how to flash a custom ROM using TWRP recovery.
   • Reboot and Enjoy

The first boot may take long time, so don’t panic and be sure that you have enough battery backup. Let the phone reboot and then enjoy the official CyanogenMod 13 Marshmallow ROM on LG G2 AT&T.

After this CM13 installation you may want to enable ROOT access on your phone and here is how you can do that:
How to Enable ROOT Access on CM13/CyanogenMod 13.