Just took delivery of a BMV-702 (has 702 printed on the front) and connected up - all seemed to work well including using B2+ to monitor my second battery.
Then I connected to Victron Connect (USB Cable to my Android tablet) - it recognised it as a BMV-700 and wouldn't do anything until it had upgraded from 3.08(?) to 3.10.
Now it doesn't show the B2+ option in manual setup or via Victron Connect.
Tried resetting to default several times with no luck - menu option 69 doesn't appear!