i want some help guys...

my N900 was working properly till last night...however, today its not...there's some problem in wifi...it is not detecting any wireless connection as well as GPRS...i've checked my wireless router and its fine...so the problem must be with my n900...

i tried everything i could...but it didn't work out for me...has anyone faced such problem? if yes please suggest me to make my device fine again....I'll be grateful to u......