I have 3T0 035 680 Columbus unit; it has original firmware 1164... I want to update the firmware but i do not know which is the latest firmware for this unit? My car is Skoda Superb 1.4TSI(2011)... There is not a problem concerning steering wheel controls, maxidot, climatronic etc.; but i do not have info about speed limits etc with 1164 firmware. Also, as i searched there are some people who have VW RNS-51o units, they updated the firmware to 38XX, or like that and they have Turkish language option now. Is there a new firmware for columbus which will make me have Turkish option and make tthe unit work fully functional(steering wheel controls, maxidot, climatronic etc.)

Now the unit has 3894 firmware. Can i upgrade to 4120?

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