hello all sifus in lowyat,

i juz unlock my phone few days earlier and i m experiencing some problems...My wifi doest seem to be working propely as in it can detect and connect but unable to surf the net.my edge is also missing from settings.lastly im also unable to make calls.is there a way to restore or fix these issues?i hope some1 can give me tip on solving these issues.Had been doing some research in google.iclarified and sleepers.net lately but still unable to solve these issues...thanks~