i have a big problem with 8700g (t-mobile )


its not detacted any network (also not call emergancy ) !!

if you make emergancy call the mobile show message ("WAIT.........") AND nothing else !!!


i have many pcs of this model(8700g) and all work fine ..except this one


p.s: about band ...our band is 900mhz & also i know this mobile support this band



plz ...is this software problem ??? if yes how solve ??

or this hardware problem ?? aslo how solve ??

or this one need change its band ?? aslo how ?



i hope you will help me as fast time

the O.S of my blackberry is "4.2.1.107 " ...also i make wipe & load soft again


thanks to your advance