🔒 Closed i phone 4s

[pigeon16xx]

Pa help naman po. May bago kasi akong phone from korea I PHONE 4S po, then nung pinalitan ko po ng SIM from philippines, it said no service. When i follow some instruction on the other sites, lumabas INVALID SIM. Anyone po sa mga kataas taasan po. Pa help po kung sino marunong, i beg your help thanks po salamat po mga sir.