I just bought a iPhone 4S from someone and it's locked to Telus (I'm an AT&T customer). I tried the Gevey SIM and was able to unlock the voice portion of the phone but data wouldn't work. Yes, I did change the APN to AT&T's settings. After a while and a few reboots the Gevey SIM stopped being recognized. I tried restoring to factory to see if there was something blocking the card recognition, which didn't work. The question I have is, I have been in contact with the seller and he still has his Telus SIM, is there any known way to unlock the phone without a Gevey SIM? I've tried searching around google and all unlocks have been associated with the Gevey SIM.