Firmware update Version 3.1
Available from 16.06.2015
1) The “Underwater” function was added to Picture Mode.
*We recommend setting Custom Menu G/↯ + WB to OFF.
2. The “Live View Boost 2” function was added.
*Caution: When the firmware is updated to version 3.1, settings other than AF Focus adjustments are reset.
http://www.olympus-europa.com/site/en/c/cameras_support/downloads/e_m1_download.html?olycmp=fb_eu