When using the GoPro, the camera froze on a single image. While the GoPro is still on, I cannot access any of it's...

When I hold the power button, the GoPro refuses to turn on. The LCD screen is black and I cannot use the GoPro in any way.

If your GoPro Hero5 can turn on and only LCD touch screen is not responding it could mean that the LCD is faulty. Otherwise, there may be something wrong with the motherboard or the connection between the screen and the motherboard. To check for a severed connection, you will have to open up the Hero5 and take a look. You can refer to the troubleshooting guide for more information.