Gizmodo reported that it will be possible to Unlock your iPhone 4S without a jailbreak or any other 3rd party adapters like the geveySIM, and we will share it with you. There are some downsides to this Unlock method, since you need to repeat this process everytime you reboot your iPhone and it hasnt been tested with international iPhone 4S users. Check out the how to and a video of a Unlocked iPhone 4S after the break.

NOTE: we are not sure if this works for international iPhone 4S. But feel free to try it out and let us know. ( NOTE: if you are international, do not call 611. Call your carrier’s customer service hotline )

NOTE: you need a T-Mobile data plan too

NOTE: you need to do it every time your restart your device. NOT a permanent unlock

NOTE: reports says it works with the iPhone 3GS and iPhone 4 too, but we can’t confirm that

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 does not 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!

Source [FSM]

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