WiFi is not connecting

I purchased my hero 3 with wifi several years ago. I haven't really used it because every time i try to set it up the wifi doesnt work. I have gone on line with go pro several times, I have the correct updates, all set up was done correctly. the wifi doesnt work. In stead of buying a new one (i never even got the chance to use the one i have) I want to get this one fixed. I have no clue how to do that. i would like to send it to some where pay them some money and have them send it back, turn it on and see it working.

looking for answers