SL R230 - COMAND 2.0 - Firmware Update because wrong clocktime

Hello,
the clock of a COMAND 2.0 in an R230 does not show the right clocktime from GPS.
The dealer and i try to make it. No chance. Only choose other "country/timezone".

HW/NW: 2308200589 (Bosch)
Date: 05.01.2002
HW-Version: 42.01
SW-Version: 16.01

Can we make an Firmware-Update? If yes, it is on the MAPS CD or can we make update over DAS/VEDIAMO with Telematics CD?

Thank you for short answer.

Chris

No update needed.
The time is not drawn by GPS but via RDS.
In order for the time to be displayed correctly, the dot menu must be coded clock synchronization with HU (HEAD UNIT) in the instrument cluster.

Thank you! But thats not the problem.
The clocktime is not correct on the COMAND Display - there, you can not adjust the hours. Only Minutes - because it use the Satelite.
At the moment we choose an other timezone.
I think, its an buffer-overflow or something else in the software after many years.
So, can we make an update or not!?