Guys, please help. I got a Iphone 4S with the latest updated iOS 7.0.4.
Well, i had encountered with the problem of the phone was keep under searching mode("searching the carrier signal").

**IT WASN'T "NO SIM CARD" issue**.
After trouble shooting, 1st i tot is SIM CARD problem, but i had changed my sim card to other Iphone, it works well without any problem.
THEN, it must be my Iphone problem.
Steps which i took:-
1.) FORMAT my iphone, but i can't turn off "FIND MY IPHONE", so fail to restore.
2.) Secondly, i go for recovery procedure, well, it restore halfway, come out with ERROR 1.
3.) I know there is a way to cancel recovery by going through few steps, but unfortunately it still the same.
OH GOSH~~ Guys, i wonder this is SOFTWARE or HARDWARE problem? ANYONE face such problem before?
PLEASE HELP!!!
FYI: my iPHONE is still in RECOVERY PROCEDURE.