1. qshahid16's Avatar
    I had a jailbroken iPhone 6 plus with ios 8.3 running on it and I decided to restore it since I was having slight battery issues and now after restoring it is stuck on the SIM activation screen and says "Invalid SIM" everytime I try to activate my phone...
    Is there any help anyone can provide as I am really frustrated.
    Your suggestions are welcome
    Thank you
    07-03-2015 02:17 PM
  2. Bigeric23's Avatar
    My suggestion: Call or visit your carrier for assistance.
    07-03-2015 02:41 PM
  3. anon(4698833)'s Avatar
    Is the SIM you are using now the same as the SIM you were using before you restored? If not, is it from the same carrier at least?

    Were you jailbroken so you could use a SIM that does not match your local requirements?

    If the latter is true, restoring your phone broke your jailbreak, and you will need to jailbreak the device again and set the phone to the same settings again to use your SIM.
    07-03-2015 03:36 PM

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