My iPhone 4 has lost SIM connection several times over the past week when the phone is left on continually. I have had the SIM checked and it was not the source of the problem. I have found that I can reactivate the SIM by switching the phone off and on.

My iPhone 4 has lost SIM connection several times over the past week when the phone is left on continually. I have had the SIM checked and it was not the source of the problem. I have found that I can reactivate the SIM by switching the phone off and on again. Has anyone else experienced this problem and if so, is there an easy fix. I have been advised by Apple that the latest IOS update may overcome this situation but I'm only on slow download speeds and 690 Mb would take forever. I would appreciate any advice.
Best regards,
Rob.

PinguXeF wrote:
, while I have taken a backup of the iTunes Library,
this means nothing if it was not done correctly...
To have  EVERYTHING on a New Computer...
From your OLD computer...
Copy your ENTIRE iTunes FOLDER to an External Drive... and then from the External Drive to your New Computer..
Full Details Here  >  http://support.apple.com/kb/HT1751

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