No Settings menu

I bought this diving computer recently and was reading the manual and try to set it up and I can only stop at the first line.

On the bottom of page 31 of the manual there is the "System Setting" title an the first line underneath it says: Hold MENU, and select Settings>System."

I press menu and there is no Setting to select.

If I press the Menu, next screen shows the % of battery left on top and below it starts with the diving mode: "Single -Gas", "Multi-Gas".... at the end of the activities (on white background) there is Map, Navigation... (on black background), then there is the "+" to add activities and restart from "Single-Gas".

No settings.

Have gone through the Connect app, but Settings are limited and there are not all the option that I can see on the manual and that should be done from my "missing" Setting menu.

Am I missing something?

Did anybody had the same problem?