Out of nowhere, when I power on my GoPro Hero 3 Black, it turns off and on, repeatedly, by itself, until I remove the battery.
There was no shock to the camera when it stopped working, no water damage, maybe a hotter than usual day, but nothing crazy.
Video here: [https://www.youtube.com/watch?v=YKSffmH0Mos]
I've tried:
* removing the battery
* removing the SD card
* different battery
* upgrading the firmware (didn't work, power cycles but with the firmware upgrade process)
* tearing it apart and looking for loose/broken connections
No luck.
Any ideas?