I worry after restoring it, if my wifi problem still persist, then i am unable to download yellowsn0w, then my phone will be even useless, losing wifi ability now is better than losing the use of phone in my opinion.

Having researched on the net, many people are having serious wifi problems and I don't think there is a sure way to solve it unless returning it for a 1 to 1 exchange, for me, this is not an option my phone came from aussie.

I am basically out of options now,