Install Stock Android Marshmallow on LG G3 (D855) Using TWRP Recovery

LG G3 recently received the update to the Android Marshmallow. The new update brings the optimizations of Android 6.0 and customizations and tweaks by LG, that is meant to provide you a better user experience. Most talked about features in Marshmallow update are Doze mode which gives excellent standby time for your device, App permissions which enable you to control permissions for your device, Now-on tap, and few others. This guide will help you install the newly released Marshmallow update on your LG G3(D855) and root it.

If you are running Stock ROM without any customizations like Rooting or flashing a custom recovery, then you may simply Check for New Updates in your Settings app and install the update. But if you haven’t received the OTA or are running a customized version of the stock ROM or any other custom ROM and have rooted your device, you cannot install the OTA update directly on your phone.

You have to install the update using Flash tool using a PC, which may be too cumbersome for some users. Thanks to XDA developers you can now directly install the Marshmallow KDZ update on your LG G3 using TWRP recovery. Follow the steps given below to install the update and root it.

Things You Will Need

• LG G3 with a custom recovery like TWRP installed
• LG-D85530B-Flashable.System.zip
• LG-D85530B-Flashable.Modem.RPM.TZ-AutoHybrid.zip
• LG-D85530B-Flashable.Boot-AutoV2.zip
• BETA-SuperSU-v2.52.zip

Read: How To Install TWRP Recovery on LG G3

Install Android Marshmallow on LG G3 Using TWRP

1. Download all the zip files linked above and copy them to your phone.
2. Follow the guide,’How To Install TWRP Recovery on LG G3‘,  to install TWRP custom recovery on your device if you don’t have it already installed.
3. Once you have successfully installed TWRP recovery boot your device into Recovery mode to start the newly installed custom recovery. To boot into recovery mode:
   • Turn your device off.
   • Then press and hold Volume down and Power button simultaneously, release them when the LG logo appears and press them again. This will boot your device into recovery mode.
4. Once you have booted into the TWRP recovery, the first thing you should do is backup your current ROM. To do so, choose Backup option on the recovery and then select Boot, System and Data partitions to backup. Then swipe to start the Backup process.
5. Once the backup is complete, now you need to perform a factory reset. To do so, select Wipe and then swipe to perform Factory Reset.
6. Now go back to the home of the recovery and select Install, then browse for ‘LG-D85530B-Flashable.Modem.RPM.TZ-AutoHybrid.zip’  zip file and swipe to install it.
7. Similarly, install the ‘LG-D85530B-Flashable.Boot-AutoV2.zip‘ file on your device.
8. Then install the ‘LG-D85530B-Flashable.System.zip‘ file on your device.
9. You may alternatively select the add zip option in step 6 and then select all the zips in the same order as mentioned above.
10. If you want to root also you may flash the SuperSU zip file linked above.
11. Reboot your device. If TWRP asks you to install SuperSU tap on No and Reboot. First boot may take a little longer, so be patient.
12. If root access is not available, simply boot into TWRP and install the ‘SuperSU2.5.2‘ file again.
13. Enjoy!

Enjoy the latest iteration of Android i.e. Android Marshmallow 6.0 on your Lg G3 (D855). Drop down your queries regarding the installation procedure in the comments section below.