1. ip120218's Avatar
    Hello all, I am a new guy here.

    I have one AT&T iphone 4S, I want to unlock it to use for T-mobile.

    As I know, the unlock sim to help to unlock the iphone 4s now. But I don't which one is better???
    #1, GPP Sim, this product can unlock AT&T iphone 4s.
    #2,Gevey Ultra S, this product can unlock all the GSM iphone 4s.
    #3, R-Sim, I watch the youtube, it is so hard to use.
    02-29-2012 02:06 AM
  2. kaze258's Avatar
    what base band your on, cuz if your on 4.11.08, welcome to the club, there aint no way in hell to get out of it , if u didnt update the phone and u preserved the old baseband your good , but if that base band say 4.11.08 yeah buddy u gotta wait, let me guess, had faith in gevey and thought it would work, it sucks they wont help customers good luck with it though...
    02-29-2012 02:26 AM
  3. gogorocky's Avatar
    Check this video :

    R-Sim for iPhone 4S just a plug and play solution.
    03-06-2012 08:25 PM