Tutorial to install official Lineage OS 14.1 on T-Mobile LG G3 D851

Official Lineage OS 14.1 Nightly for T-Mobile LG G3 D851 is now available for download, thanks to Team Lineage OS for their official roll out. Official Lineage OS 14.1 has been released for multiple LG devices, including LG G2, G3 and more but now it’s T-mobile LG G3 turn to taste the sweetness of Android 7.1.1 Nougat firmware via official Lineage OS 14.1 Nightly. The update is stable and can be used as daily driver, there are two build one is Nightly and the other is experimental, so if you want a stable ROM on your device then we recommend you to install the official Lineage OS 14.1 Nightly.

LG G3 is quite powerful device regarding it’s hardware specifications but LG has no plan to released Android Nougat for it’s LG G3. So Team Lineage gave you a best chance to install the latest version of Android on your LG G3 via their official Lineage OS 14.1 Nightly. If you are interested in flashing the ROM on your device just follow the instructions below.

The process to flash official Lineage OS 14.1 on T-Mobile LG G3 D851 is not very difficult task infact you need to pay attentions on the instructions below. If you have a custom recovery like TWRP recovery installed on your device already then all you need to do is just flash the ROM zip from recovery along latest Lineage OS gapps and that’s it. For your ease we also mentioned the guide to install TWRP recovery on your device as well. The process to install Lineage OS 14.1 ROM on all devices is almost the same so we use the same process for T-Mobile LG G3 D851 as well.

You can also: Download the last CyanogenMod 11 upto 14.1 builds from this guide.

Process to install official Lineage OS 14.1 ROM on T-Mobile LG G3 D851

Some pre-requisites before you begin:

• Your device battery should be in good health (70%) to avoid the shutting down while in flashing process.
• A TWRP custom recovery must be installed on your device, if you haven’t, follow this guide to install it.
• Create a Nandroid back up of important data including complete System with all apps and messages, follow this guide to create a Nandroid backup via TWRP recovery.
• Upgrade latest USB drivers for your device on PC. Download latest LG USB drivers here [For a stable PC-phone connection].

Downloads section:

• Download Lineage OS 14.1 ROM for T-Mobile LG G3 D851 [Pick up the latest build]
• Download Lineage OS 14.1/Android 7.1.x Google Apps
• Now transfer both file on your device storage.

Install Section.

• Turn off your device and reboot into TWRP recovery.
• Once your device boots into recovery mode then follow this guide to flash Lineage OS 14.1 on your T-Mobile LG G3 D851 via TWRP recovery.

Solution to a failed boot issue.

Follow this guide to solve the bootloop issue. [If you think your device stuck at boot animation for quite a long time]

Enable Root Access for Apps.

How to enable root access for Apps on Lineage OS 14.1 ROM

That’s it! If you have successfully installed the ROM on your device. Give us your feedback about Lineage OS 14.1 ROM on your T-Mobile LG G3 D851 and stay tuned for more updates.