Hey guys so i bought a O3DS with a ver 2.2 i know its old so im thinking about updating it. 1- What's the best firmware version i should update to if i want to use CFWs ? 2- Can i install CFWs without a flashcart ? 3- I can play 3ds roms on the cfw ? 4- I hope u guys can answer this one i see many people says dont ask about it and such .. - what's CIA ? Thanks alot in advance !!