#iphone5 #ios704 error invalid sim & no sim card installed

My iPhone5 with IOS704 regularly returns me the error “Invalid SIM” & “No SIM card installed”.
After restarting the phone… the error disappears.
But after a while the error returns…

Here are my findings while troubleshooting the issue:

1. restart phone… ok, but problem returns
2. airplane on/off doesn’t work
3. try network reset:  Settings>General>Reset>Reset Network Settings (returns to factory network settings) > no solution
Network Reset returns the phone to normal service, but after a while the problem returns again…

invalidSIM

4. next… replace nano-SIM: problem solved !

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2 thoughts on “#iphone5 #ios704 error invalid sim & no sim card installed

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