Install LineageOS 19.0 based Android 12 custom ROM on Samsung Galaxy S3 Now!
List of Best Custom ROM for Samsung Galaxy S3 [Updated]
Samsung I8190 Galaxy S Iii Mini Refurbished-original S3 Mini I8190n Mobile Phone 4.0" 8gb Rom Camera 5mp Gps Wifi 4g Phone - Mobile Phones - AliExpress
How to Root Your Samsung Galaxy S3 (And Flash Stock ROMs) Using Odin for Windows « Samsung :: Gadget Hacks