02-14-2019 07:59 AM
Not all cards are created equal.
Are you using one of the cards from the below list:
Also have you tried a manual update of the firmware of your camera
02-14-2019 09:08 AM
It might be due to SD card incompatibility.
Please let us know what SD card brand and model are you using?
You can check list of compatible SD cards here: https://gopro.com/help/articles/block/microSD-Card-Considerations