Xiaomi Mi A1 comes equipped with a large 5.5-inch display with a screen resolution of Full HD (1080 x 1920 pixels). The device runs Android 7.1.2 Out of the box. The device is driven by an Octa-core, 2 GHz, Cortex A53 processor coupled with 4 GB of RAM. Powering the device is a 3080 mAh non-removable battery. The mobile has a 12 MP main camera on the rear side. It has 64 GB of onboard storage which can be expanded via microSD card
Pre-Requirements:
Make sure the bootloader on your device is unlocked and your device is rooted and you have a custom recovery installed. Make sure your device has more than 50% battery. Make sure you have taken a backup of your important data. Now proceed To Install Official Lineage OS 17.1 On Xiaomi Mi A1.
Downloads
Lineage OS 17.1 for Xiaomi Mi A1: Download Link [Nightly build] Download GApps For Lineage OS 17.1 ROMs
How to Install Lineage OS 17.1 On Xiaomi Mi A1 | Android 10 (Official)
Make sure your device is rooted and have the latest TWRP recovery installed. First, download the files from the above link. Now transfer the downloaded files to the internal storage of your device. Now reboot to the TWRP recovery by holding your power and volume down buttons together for a few seconds. Take a backup by selecting the option from the home screen and then your data and cache from the recovery menu.
Now select install and then browse for the downloaded ROM file and then select it. Next flash the Gapps file and then Magisk (optional).
Once the flashing process is completed, reboot your phone and you will be booted into Official Lineage OS 17.1 Based on Android 10. If you have any doubts regarding this process, feel free to comment below.
