My new [2 days] Gopro 3+ black has twice frozen- refuses to power on. Removing the battery for a short while seems to fix this. Question is should I return the thing- or is this just something that a Gopro does? The SD card I'm using is a Sandisc as recommended by Gopro. It was supplied with the latest firmware installed. It must be said, at this stage I'm not impressed with this cam.