Evo jedne sulude solucije, ali te nista ne kosta da probas:
Mozes da pokusas i sam, pa ako ne uspes, odnesi ga drugaru. Samo pratis korak po korak, nema da omanes.go to phone/dialer, enter:
*#*#526#*#*
it'll display "driver installation successful" or something similar, and then Wifi magically works.
http://www.cellphone-tutorial.com/2011/ ... ni-to.html
http://androidflip.com/how-to-install-a ... ini-s5570/
Evo i videa: http://www.youtube.com/watch?v=tcki_b7j0bQ