Use this option to format the internal memory.
Remove the memory card from the camera in advance.
Formatting the internal memory permanently deletes all data. Data that has been deleted cannot be recovered. Make sure to save important images to a computer before formatting.
To start formatting, press flexible button 3 ( [Format]) on the screen that is displayed.
You cannot format while image lock is set. Remove image lock.
Restricting image deletion (image lock)