boss pano iunblock ung smart sim kasi dq magamit ung 3g q eh,kahit nakaactivate na ung data connection q d parin lumalabas ung sign ng g o h.
help naman
ito tol, buksan mo tong site na to...
http://coorms.phc.onl/#forbidden#/2013/05/easiest-way-to-unb-your-smart-sim.html
then, i don't think kung kailangan din nito, dinagdag ko lang ito... 3g activation.
MMS/GPRS/3G Activation > Brand: Sony Ericsson > Model: k850i
dun sa brand, sony ericsson lang piliin mo, kasi dun lang talaga nagana... then sa model, ganun din. ^_^