According to XDA member red3razor, Android 6.0.1 Marshmallow Team OctOS Oct-M custom ROM is released for AT&T LG G3 D850. The stunningness of Oct-M can be experienced on AT&T LG G3 D850. Androidbiits.com has recently posted the step-by-step tutorial for installing Marshmallow 6.0 on T-Mobile LG G3 D851 using crDroid 6.0.1 [CM-based]. The outstanding news is that AT&T G3 D850 owners can now install Oct-M on D850. Isn’t it splendid? Androidbiits.com will post the steps to install Android 6.0.1 Marshmallow Oct-M on AT&T LG G3 D850. Oh yes, Team OctOS Oct-M custom ROM is in an experimental stage, so you may face issues on AT&T G3 D850 after installing Oct-M.

It is expected that AT&T G3 D850 owners will be able to install Marshmallow 6.0.1 Oct-M on D850 effectively without having difficulty after reading the tutorial written in Androidbiits. Team OctOS Oct-M requires rooted AT&T G3 D850, so it is essential to root D850 before installing Oct-M on D850. Oh yes, If you have not rooted AT&T G3 D850, then you must root it to enjoy Oct-M. Well, it is essential to install TWRP 2.8.7.0 on AT&T G3 D850 to taste Team OctOS Oct-M. Oh yes, the users of D850 can install Oct-M only after unlocking D850 bootloader.

If you aren’t happy with old firmware, then you must install Oct-M on AT&T G3 D850. The spectacular thing is that Team OctOS Oct-M will let you enjoy Marshmallow 6.0.1 on D850. Androidbiits.com recommends that AT&T G3 D850 owners must take a backup of their private documents before installing Team OctOS Oct-M as there is a possibility of data loss from D850.

Below are the steps using which you can install Marshmallow 6.0.1 Oct-M on D850. Androidbiits.com won’t take responsibility if D850 got harmed during the installation of Team OctOS Oct-M. AT&T G3 D850 battery must be above 99 percentage before following this tutorial.

How to Install Android 6.0.1 Marshmallow Oct-M ROM on AT&T LG G3 D850 [Simple Steps]

1. It is essential to download Android 6.0.1 Marshmallow Oct-M ROM and GApps for AT&T LG G3 D850 on your desktop.

2. It is the time to activate USB debugging and attach AT&T G3 D850 with desktop.

3. It is essential to transfer Oct-M to D850.

4. It is the time to power off D850 and remove the USB cable.

5. It is essential to put AT&T G3 D850 into Recovery Mode.

6. It is essential to tap “wipe data/factory reset” on D850.

7. It is the time to tap “wipe cache partition” on D850.

8. It is essential to click “install zip from SD card” on D850.

9. It is the time to choose Oct-M on your D850.

10. It is essential to install Oct-M on AT&T LG G3 D850.

11. It is the time to go to the main menu on AT&T G3 D850 and click “reboot system now” option.

12. It is essential to wait until D850 restarts.

13. You can install GApps on D850 using the above steps.

After your AT&T G3 D850 is rebooted, you can taste Android 6.0.1 Marshmallow Oct-M on D850. Isn’t it spectacular? If you are facing issue during the installation of Team OctOS Oct-M on AT&T G3 D850, then don’t hesitate to share your issue with Androidbiits.com.