I have an iphone jailbroken and unlocked with the 3.1.2 firmware. I now use o2 in there but its locked to orange
I want to put the 3.1.3 firmware on then jailbreak and unlock again. Do i need to put my original orange simcard and restore it, then update it again. Or can i update it with the o2 sim?
Also the programs i installed third party. Will i lose them when i update the phone?