please help

[Android Question]

Hi iv just got a samsung galaxy s3, buts been fine for nearly a week now and my little firl had it this morning abd I went to make a call and it said not registered on network and iv searched everywere and noone has gotan answer its aalso saying seleted network (EE) unavailable. ... please help be much appreciated

 

[Rukbat]

Make sure Airplane mode is off.

If that doesn't fix it, turn the phone off. Wait a few seconds. Turn it on.

If that doesn't fix it, call your carrier's tech support.