1. Extract contents of the zip/rar archives
2. Wipe data-factory reset/cache/dalvik-cache
3. Flash the *.tar.md5 file with Odin.
4. Wipe data-factory reset/cache/dalvik-cache
Fido Mobile (FMC)
Koodo Mobile (KDO)
Puerto Rico (PCT)
How to keep custom recovery after flashing an image?
Phone stuck at the Samsung logo?
What do these letters and numbers mean?
How do I go back to stock if I want to sell/return/SIM unlock my S3? (Easy recovery flashable)
How can I use SIM cards from different carriers on my S3? (Network/SIM unlock guide)
If an archive prompts a password, it should be
Original unmaintained thread can be found here.