2023---android-12-on-the-ancient-galaxy-s3--it-is-possible--but-by-tweaking

Running Android 12 (LineageOS 19.0/19.1) on a Samsung Galaxy S3 (GT-I9300) is possible through XDA Developers' community builds but remains an alpha-stage, experimental project. The process requires flashing custom TWRP recovery, repartitioning the system via script, and installing the ROM, often resulting in sluggish performance due to the 1GB RAM limitation. You can find the necessary tools and guidance on the XDA Developers forum.