If it helps my RNS 510 LED is running this:
Address 37: Navigation (J0506) Labels: 1T0-035-680.clb
Part No SW: 1T0 035 680 C HW: 1T0 035 680 C
Component: RNS-MID H04 2680
Revision: AB001001 Serial number: VWZ6Z7J9320057
Coding: 080100400100001200
Shop #: WSC 05314 000 00000
ASAM Dataset: ------------------------- ------
VCID: 2E59E6F2C091
You shouldn’t need to update the firmware as V7 map and postcode search will work O/K with 2680.