sim locked, insert a valid sim with no sim to activate
After upgrade SIM LOCKED to activate insert sim with no pin?
Same problem here, iPhone 5 from Movistar Venezuela. I'm stuck on the activation process with a SIM Not Valid message although I can answer calls
I think your phone is locked with a different network and you are trying to use a different network. I suggest you can approach Theunlockarena.com and specify the country,locked network of phone.Based on the availability you can get the permanent unlock service along with free instructions.