I am currently in Lembeh which is fabulous! I am trying to assist my dive guide whom has an issue with his Mares Sirius. It has a flashing red exclamation mark on the left side of the 3 available time screens. I am unable to find any info about what this might be signaling. The software is current. I've checked Google, Reddit, You Tube and of course the manual. Can anyone shed some light on what this might be, where to find more info or how to fix it other than buying him a Garmin! Thank you.