How to Update LG G3 with Android M based custom ROM

Android M, the latest Android operating system is still in the development mode. But LG G3 users can experience the latest OS with the help of Android M developer preview custom ROM. Though the ROM is not stable but the users can get check the new features, apps, processes and more.

Google Nexus 5 (2015) smartphone is expected to launch in November or October running on Android M stable OS out of the box. So, this will be the first time people can get hands-on with the latest operating system.


The following is the complete procedure to update LG G3 with Android M based custom ROM.

Disclaimer: Installing custom ROM’s or rooting voids company warranty. So proceed at your own risk.

Perform Nandroid backup and normal backup before starting the update process. The below process works on with rooted devices, so make sure the device has root access. Also make sure to enable USB debugging from settings and charge your device to 60% battery life.

How to Update LG G3 with Android M Preview based Custom ROM:

Step 1: Download Android M based custom ROM file from the given link to your PC/computer.

Step 2: Connect your LG G3 smartphone to PC and transfer the same zip file to device storage.

Step 3: Now disconnect the smartphone and turn off your handset.

Step 4: Enter into recovery mode on your G3.

Step 5: From recovery main menu, perform hard reset and clear cache by selecting “wipe data factory reset”, “wipe cache partition” and “wipe dalvik cache”.

Step 6: After completion of above steps, again go back to recovery main menu and select- install zip from SD card > choose zip from SD card.

Step 7: Wait until LG G3 install the Android M Custom ROM.

Step 8: When done, select “reboot system now” and enjoy the new firmware.

Android M preview based custom ROM has been installed on your LG G3 Android smartphone. Use the below comment section for any doubts relating to above procedure.