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SIM card not supported

Hi, i forgot my passcode for my iphone 4 and restored the phone to factory settings and it updated itself to ios5, but now the phone says that the sim card is not supported. what should i do? I've tried with other sim cards and got the same error. Now the phone cannot be activated

iPhone 4, iOS 5.0.1

Posted on Jan 21, 2012 12:39 AM

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16 replies

Jan 21, 2012 4:27 AM in response to Cheezheng

try this http://www.youtube.com/watch?v=-wt34ZoINRE it is for iPhone 3g, but I think there's a chance that it will work on the 4. That person turned on a plane mode, synced with iTunes, rebooted and the network was all fine. Let me know if it worked. If not, then I'll try to help you in another way. I'm sure we can figure out how to make it work.

Jan 21, 2012 4:43 AM in response to Cheezheng

Ok, here we go with a solution from the Official Apple Website. Test it after each step.

  • Reseat the SIM card: Remove the SIM card in your iPhone and then reinsert it.
  • Restore your iPhone. Note that the computer you are using to restore the iPhone needs to be connected to the Internet. You can verify the connection by loading the first page of the iTunes Store.
  • Contact your carrier to verify that the unlock was applied in their system.

SIM card not supported

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