Been trying to find out my hardware without removing the unit so I can update firmware. But when I try using the 'hold setup button' option it just goes to a radio menu (even if I hold it for up to a minute).

Wanting to upgrade as I've got a 16Gb SDHC card which isn't recognised by the unit, and apparently a firmware update will do the job. Wondering if anyone else has had this issue with a My10 Skoda and RNS510 unit?

Tried these links.
Accessing the Setup Menu on RNS 510 head units with firmware version 2660 / 2662 / 2664 / 2666 / 2668 | my-gti.com
Setup menu rns510