Removed the SIM card for a routine battery change on my 5 after the change it would not switch on. Currently dealing with the company that sold me the battery They are saying l brought the wrong one ( 616-0613 ) as they advertise. But that is another story what l need help with is, when l put the SIM card in phone all my phone numbers have gone. I did do a back up to my PC. But l was under the impression that the iPhone does not store such information in the phone. Gregory Isaacs r.i.p.