Thanks for the advice, My phone is unlocked so should be fine. I've just looked at the back of my phone and says its a prototype. Would that effect it in anyway?

Isit possible to flash my CID49 w610i with a RED52 FS and MAIN file or would it stuff my phone? because I cant seem to find any flash files that says 49.

and could someone explain what the colour means, for example, RED, BROWN

Sorry for all the questions, this is my 1st time flashing and I'm a bit worried.