Physical damage to USB port
It appears that the connections inside the USB port are physically damaged. I cannot get the unit to charge. Can the port be replaced or is the camera scrap?
The GoPro Hero3 Black, introducing a new 12MP sensor, was released in 2013 and, at the time, was the highest end GoPro model with 4K UHD video capture. The Hero3 brought a 30% smaller and 25% lighter action camera.
Hi @tnskycop ,
Here is a link to a video which shows how to disassemble the camera so that the USB port can be removed.
As you say that the USB port is physically broken, here is a link to a supplier of the replacement part. It is not a recommendation to use them. It is shown to give an idea of the cost of the part. There are other suppliers online that may suit you better. Just search for GoPro Hero3 Black USB port part to get results.
To remove / replace the port you'll need SMD (surface mount device) soldering tools and expertise.
If it all seems to daunting to do, especially the SMD soldering, you could try dis-assembling the camera and once you have the replacement part, contact a reputable mobile phone or electronics repair service who should be able to professionally solder the new port onto the board for you.