Hello, when i bought my iPhone i paid the full price so the carrier unlocked it. Then later i jailbroke it on 4.3.3 with Jailbreakme 3.0 and it remained unlocked. If i update to iOS 5 i know i lose the jailbreak, but will i lose my SIM unlock that the carrier did? In case it remains unlocked can i JB it again and it remains unlocked? I'm sorry i'm pretty new to this stuff. Thanks in advance. EDIT For those using Google if they come here: iPhone is unlocked, and you receive an iTunes warning message saying it was unlocked.