We use a couple GoProHD Hero cameras for some of our POV video footage. You can read a full review of these cameras HERE although this model is older, the current GoPro cameras are the Hero3 models.
Anyway, after using the cameras for about three years without any problems, when I plugged one of the cameras into the USB port of my computer to charge the battery, instead of the red light on the front of the camera coming on indicating the camera was charging, the light began flashing weakly. I disconnected the camera from the computer and pushed the power/mode button on the front of the camera and nothing happened. I took the battery out and replaced it with a battery from another camera and powered it up, the camera turned on normally. I turned the camera off, waited a few minutes and tried it again and the camera did not power up. I took the battery that would not charge and put it in another GoPro, plugged it into the computer with the USB cord and got the weak flashing red light. I immediately unhooked it from the computer and pulled the battery out.
Clearly there was a problem, either with the camera or the battery. Since I got the flashing red light on two cameras with the same battery, I suspect the battery is defective, maybe a short circuit, and may have done some damage to the camera.
If the camera was still covered by the GoPro warranty, it could have been sent back to the factory and have them check it out. In this case, I would have sent the camera and the battery. Since this camera is beyond the warranty period, we would have to take care of the problem ourselves. We decided to try a “hard reset” of the camera and hope that would bring the camera back to life. If you have a problem like this with your GoPro, here’s how to do a hard reset:
GoPro Hero and Hero II
GoPro Hero 3 and 3+
GoPro Hero 4
The “hard reset” may not work in every situation, but with a dead camera that’s out of warranty, there are not a lot of options. The battery that gave the weak blinking light when charging is going in the trash.
We have become aware of a last ditch attempt to salvage GoPro cameras that appear dead. We have not tried this ourselves and recommend that you do not do any of this unless you have a GoPro camera that appears completely dead, you’ve tried everything else and the camera is out of warranty. You will also need to have some knowledge of Linux and be able to follow instructions. You can check it out here if you want to give it a try.