sim card not working after inserting in iPhone 3GS - HELP PLS!
I know that there have been simian posts but please bear with me....
I was previously using a work Nokia phone with an 02 sim card and my wife has an iPhone. She upgraded to an iPhone 4 leaving her 3GS spare. I therefore placed my sim card n the phone and it worked fine with accessing wifi only, which is all that I require. I upgraded the software and again it worked ok for approx 12 hours. Now the phone comes up SIM CARD REGISTRATION FAILED and is permanently saying NO SERVICE. I have put the sim card back in my Nokia phone and it is saying the same. All phones on 02. PLEASE HELP....
iPhone 3GS