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Helpful answers
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Aug 13, 2015 6:21 AM in response to Mamobleyby Brett L,Greetings Mamobley,
If you are seeing an "invalid SIM" alert for your iPhone, I would suggest that you troubleshoot using the steps in this article - If you see 'No SIM' alert on iPhone.
Once you have a working SIM card in your iPhone you should be able to complete your backup.
Thanks for using Apple Support Communities.
Be well.
