Via the GO App:
1. Connect to your phone via the Charge Case or via Bluetooth (How do I connect via Bluetooth?)
2. Open the GO app, enter Settings -> Select camera storage-> tap "Format"

Via a Windows computer:
1. Place GO into Charge Case, align the charging points of the camera and Charge Case.
2. Connect to your computer via USB.
3. Click 'My Computer' -> right click 'Removable disk' -> click 'Format'
4. Select 'FAT32' in File system, '128 kilobytes' in Allocation unit size -> click 'Start' to format.

Via a Mac computer:
1. Place GO into Charge Case, align the charging points of the camera and Charge Case.
2. Connect to your computer via USB. 3. Run 'Disk Utility' applications on mac -> select GO disk -> click 'Erase'.
3. Select 'FAT32' in File system to erase.