i bought my iphone 3gs 32gb 2nd hand, but now wifi is coloured grey with "no wifi" and i even can't activate bluetooth.
this also happened with 3.1.3 and now it does again with iOS 4.0 and 4.0.1...
i read a lot about this problem but there's no-one who could solve this problem really good.
i hope somebody can help me out of this problem!
thanks in advance