M mjchelbe4549 Guest Jan 14, 2010 #1 ...because of invalid SIM? My phone is only unlocked for t-mobile via a cheater sim card. What will I have to do to update to the 3.1.2 and then unlock/ jailbreak if itunes doesn't even let me update?
...because of invalid SIM? My phone is only unlocked for t-mobile via a cheater sim card. What will I have to do to update to the 3.1.2 and then unlock/ jailbreak if itunes doesn't even let me update?