Chosen Solution
My iphone 5 today suddenly started started searching network, I took out the SIM card , it still kept searching for network instead of saying no sim or no service. I reset network settings, then all settings, turned phone on off several times, put back sim in, hard reset it etc. I haven’t restored it from itunes that I will do next but I am wondering if any one had simlar problem. Taking SIM card out should changed it to no sim or no service but it doesn’t do that so that is weird. Another thing is it doesn’t give me an option to select carrier manually as that option has disappeared from the settings. Please help
This can happen if the time/date is set wrong. Try manually setting the time, pop the SIM card in. If that connects to network change the time setting back to Auto.
There are too ways to solve it. Method 1(you already tried): Try Reseting Network Settings by going into Settings>General>Reset>Reset Network Settings Your phone will restart deleting wifi passwords and so on. Method 2: If it’s a hardware problem then the only solution is to heat the baseband ic (under sim tray) with a hairdryer for approximetely 5 mins According to iPhone could not be restored unknown error 1 Do not try to Restore phone via itunes cause your phone will be unusable (happened to me) Post back with the results