GOPRO HERO 3 STOPS RECORDING "ALTERNATIVE SOLUTION"
UPDATE:
I found out that if you use the sandisk 64gb class 10 the sd card only writes up to 30fps.
So if you make a movie with more fps like 50fps, then the camera will stop by itself.
If you want the camera to work again, then only record your movies less then 30 fps.
If you wanna record on higher fps then i advise you to buy the sandisk extreme that will write 80 fps.
Hopefully Go pro gonna come with a new update very soon to can use Protune again.
Update: My gopro works perfect now!!!!
What i did is to format you sd card from your computer. NOT from your sd cable to your gopro!!!
After format your sd card go to gopro.com and update the new firmwire.
But your sd card is still in your computer.
Update camera software manually!!!! And type in your gopro serial number.
Then download the update and send the new update to your sd card.
After you did that, put out your sd card from your computer and put the card in your gopro and turn it on.
It will now update your gopro, this will take a few minutes...be aware the camera will shut itself on and off for a few times, so dont press any buttons till the update is realy finished.
To me it works now perfectly :D