Because Samsung dropped support for the Galaxy S3 years ago, developers on the XDA Forums ported unofficial and semi-official builds of LineageOS 17.1 (built on Android 10 source code).
: WiFi, Bluetooth, and RIL (calls, SMS, and mobile data). Hardware Support : Camera and various onboard sensors. Essential Download Links To install Android 10 on your
This specific build is based on LineageOS 17.1, was last updated around 2020, and is unofficial, meaning it is not supported by the main LineageOS project. Here is the current state of this Android 10 ROM:
Download the following files and copy them to your phone's (not the internal storage):
