Tuesday, 27 December 2011

How To Unlock iPhone 4S, iPhone 4, iPhone 3GS Without Jailbreaking [Updated]


It looks like a bug in iOS 5 allows you to unlock iPhone 4S without the need to jailbreak it or using hardware methods such as GEVEY SIM.
The bug was discovered by Michael Capozzi. He managed to unlock his iPhone 4S to use it on T-Mobile USA's network but according to him the method should also work with any GSM carrier.
He has been kind enough to also give the following step-by-step guide to unlock iPhone 4S using the bug in iOS 5 to work on T-Mobile USA:
Note: You will need to cut the T-Mobile SIM to micro-SIM size for it to fit iPhone 4S's SIM tray.
  1. Insert original carrier AT&T SIM card
  2. Dial 611 for AT&T customer service hotline and drop the call
  3. Turn on Airplane Mode
  4. Take out AT&T SIM card
  5. Insert T-Mobile SIM card
  6. Make sure WiFi is off ( also tap on ‘Forget this Network” to make sure it doesn’t connect automatically later)
  7. Switch off Airplane Mode and iPhone will search for network. This is followed by the Apple splash screen appearing.
  8. Activation Required will be displayed on the screen
  9. EDGE network will activate automatically – notice the ‘E’ on the top left corner of the screen
  10. Wait for about 20-30 seconds and turn off the phone
  11. Turn on iPhone and the same Activation Required screen will be displayed
  12. When you see one signal bar, tap on Use Cellular Connection
  13. Eject SIM card
  14. Activation Required screen will be displayed the second time
  15. Insert SIM card
  16. Unlocked!
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4 comments:

  1. choco13 February 2014 at 22:33

    Thanks

    ReplyDelete
  2. choco13 February 2014 at 22:35

    Thanks for your nice information. Now a days there are lot of methods available to unlock an iphone4s such as hardware,software,sam,,remote unlock method and etc.But according to my opinion remote unlock method is the best and easy method to unlock an iphone4s Because other methods contains lot of steps. It is not comfortable for me. So i have chosen remote unlock method and i got service from this site Mobile-unlocker.com then i have permanently unlocked my iphone4s easily

    ReplyDelete
  3. George warner25 April 2019 at 05:41

    This comment has been removed by the author.

    ReplyDelete
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