Yes, you read that right. You can unlock your GSM iPhone 4S, without a jailbreak or any other 3rd party adapters like the geveySIM. Head over the break to see how to do it…
NOTE: we’re not sure if this works for international iPhone 4S’. But feel free to try it out and let us know. ( NOTE: if you’re international, don’t 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
LATER EDIT: NOT working. MuscleNerd confirms it. He says that ‘If you are successful at temporarily gaining network access, you’ll lose it as soon as TMSI is refreshed (happens often)’
- Insert original carrier AT&T SIM card
- Dial 611 for AT&T customer service hotline and drop the call
- Turn on Airplane Mode
- Take out AT&T SIM card
- Insert T-Mobile SIM card
- Make sure WiFi is off ( also tap on ‘Forget this Network” to make sure it doesn’t connect automatically later)
- Switch off Airplane Mode and iPhone will search for network. This is followed by the Apple splash screen appearing.
- Activation Required will be displayed on the screen
- EDGE network will activate automatically – notice the ‘E’ on the top left corner of the screen
- Wait for about 20-30 seconds and turn off the phone
- Turn on iPhone and the same Activation Required screen will be displayed
- When you see one signal bar, tap on Use Cellular Connection
- Eject SIM card
- Activation Required screen will be displayed the second time
- Insert SIM card
- Unlocked!
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