Just make sure you have the right firmware, since there was a new one a few months ago, now another one with the release of the bacpac. I didn't know and plugged mine in and all the bacpac did was make a buzzing noise. I thought it was busted! I had to format an SD card and made sure it was on the top level of the card for the camera to find it. There are instructional videos on GoPro's website to assist with the firmware upgrade procedure. Good luck!