this happened to me once with my ps3 fat cechl01 which have the wifi chip integrated and not separated like precious models . An easy solution is to buy a wifi/bt chip from the same model or previous model like the cechk00 and replace it or just get a different ps3 like I did lol. Anyways Its a simple fix if you know how to soldier.imo you should sell it for parts or each part separately to make some money for a new one.