I rooted my old S3 probably around 2016 I had laying around. There was an exploit called "let it rain" and that got me root access. Then on XDA Developers I fo

I rooted my old S3 probably around 2016 I had laying around. There was an exploit called "let it rain" and that got me root access. Then on XDA Developers I found several custom ROM'S. Someone even created a Nougat ROM for that thing later on. That was the last version I was able to load on it. I sure did learn a lot back then.