Make sure your battery is fully charged, and follow the instructions to the letter,
From the Oly site:
- Improved sleep recovery operation.
- AF target is indicated when using C-AF+TR while shooting sequential images using Sequential L.
- Added function to automatically move focus to the following zoom positions when underwater macro mode or underwater wide mode is selected.
(Only when M. ZUIKO DIGITAL ED 12-50 mm F3.5-6.3 EZ is attached)
EUnderwater wide mode: Wide setting
EUnderwater macro mode: Telephoto setting