SlimLP Alpha 0.9 is a great Android 5.0 Lollipop ROM which aims to bring a slimmed down version of Android compared to what Galaxy S3 usually has. It is smaller, faster and lighter than most of other ROMs that you can find for the Galaxy S3.
Usually, a ROM for the Samsung Galaxy S3 can go up to 1 GB in size as it is full of bloat and applications that most of users never use. In comparison, the SlimLP ROM is only 250 MB big, so 4 times smaller than a normal S3 ROM.
It is based on stock Android and it brings the pure Android 5.0 Lollipop experience on your phone. It is based on Android 5.0.2 and has all the latest features, Material Design UI and animations.
The ROM is currently in Alpha stage which means that the build is by no means stable. In fact, it has a lot of bugs that developers haven’t fixed.
But if you are willing to sacrifice a few things that might not be very important to you, then SlimLP Alpha 0.9 is one of the best choices for your Samsung Galaxy S3.
How to install SlimLP Alpha 5.0.2 Lollipop ROM on Galaxy S3
You must have the GT-I9300 variant of the Samsung Galaxy S3. Do not try to install the ROM on other variants like the GT-I9300, GT-I9301 Neo or US variants.