- https://gopro.com/support/articles/formatting-an-sd-card-with-the-hero4-camera
- Power ON your camera with the SD card inserted.
- Press the front (Power) button repeatedly until you see Setup (gear icon) on the camera’s screen.
- Press the top (Shutter) button one time.
- Press the front Power button repeatedly until the trashcan icon is highlighted.
- Press the Shutter button one time to select the trashcan icon.
- Press the Power button until “ALL/Format” is highlighted.
- Press the Shutter button one time to select “ALL/Format”.
- Press the Power button until “Delete” is highlighted.
- Press the Shutter button one time to select “Delete”. Your camera’s LED will indicate that your SD card is being reformatted.
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