You can only change CSC if your current Samsung Galaxy S III firmware has MultiCSC. But it is not true anymore with individual CSC packages for GT-I9300 and GT-I9305. Yes, no need to depend on CSC Changer and you can install CSC that you want with custom recovery like CWM or TWRP. As usual, CSC applies to Samsung Based ROM only and will not work on CM, AOSP or AOKP ROM. And only apply it if you know what you are doing…
Installation guide ~ How to install update zip with ClockworkMod Recovery on Samsung Galaxy S3? (Video)
Download individual CSC packages for Samsung Galaxy S3 here.
