How to active Wifi function?
Make sure your gopro has more than 50% battery level, unzip the file, you can get 4-5 files.
put them in the root directory of your mini sd card, insert the card, power up Gopro.
The upgrade will take around 5-10 mins.
For using WIFI funciontion, press the wifi button first, while the blue LED flashes,you can find
gopro hero 3 (blackhero3 or hero3) as a router on your cellphone or ipad etc.
the link code is 62683404.
Download Android or Apple Gopro APP from official site before using the wifi.