Currently Being ModeratedMar 10, 2013 1:37 PM (in response to Stefanopica1998)
Because you're trying to use a sim card from a carrier other than the carrier your phone is locked to. That's why. To use different sims, from different carriers, you need to get your phone officially unlocked.
If you got this message & are using the correct sim, that's a different problem. If so, post back.
Currently Being ModeratedMar 11, 2013 1:32 PM (in response to wjosten)
Hi i have got an english sim but i live in italy,i don't know if that's,uther people say that it's a software problem ithers say my sim was dusty and i really think it's that couse after it happend i took the sim out and i blew it and then put it back in and it hasn't happend since and i just want to know way it did that have i got a foulty iphone?