1. EddyEC's Avatar
    I am not using an AT&T sim card, I am using a non american sim card, do I upgrade to 2.1? Will it affect anything?
    11-05-2008 12:28 PM
  2. EddyEC's Avatar
    It has been 2 days, will someone help?
    11-08-2008 03:07 AM
  3. Rene Ritchie's Avatar
    You should have no problem upgrading to 2.1, but you will have to re-jailbreak your iPhone. If it's an iPhone 2G (old/original), you'll have to re-unlock. If it's a 3G with a turbosim, you should be okay.

    As with any firmware update, however, there are always risks, and using it outside a legitimate carrier means if anything does go wrong, you're on your own.

    That said, tons of iPhone 2.1 out there...
    11-08-2008 09:54 AM