How to format a MicroSD card from the Olfi
With your memory card inserted, turn the camera on, press the mode button again until you reach the Main Menu.
Next, using the keys on the side of the camera, scroll down to the Setup Menu, and press the shutter button to select. Scroll up to Format, and again select and confirm.
Once you’ve done this (and you’re still in the Setup Menu) scroll up to Default, and select. This will return your camera to the factory settings. Then try recording, and see what happens.