My hero 3 black freezes. Need to take the battery out to unfreeze it. Mine came with a warning inside the seeled box to update firmware before use which I did. My wifi stopped working after a couple of weeks
and go pros answer to fix it was to reload the firmware. This fix the wifi but still freezes. According to Gopro Facebook page they are saying the have fix all known bugs with this latest firmware update but there still seems to be lots of people complaining about the freeze issue including me.
For the most part it doesn’t bother me I just pull the battery and replace it and alls good but last week I was down the coast snorkelling when it froze. Not about to pull it out of it waterproof case when floating around the ocean.
Guess I will wait for the next update to fix the bug they say they have already fix.