This is my first time updating firmware. I dropped the file onto the SD card. Turned on the P3P, heard the 4 beeps, and for about 30 min now it has sounded like a dot matrix printer. Is this normal? Should I give it more time? I'm using a Scandisk Extreme 64g micro SD card. Not sure of exact specs because its in the P3P but I paid $150+ for it when I bought my GoPro H4 Black.