EntryNav map update ?

[MercMan85]

Recently received my 2016 F45 2 series tourer & checked in settings to see it is the following : 

RL_EntryNav_Nav_I16293A

It says my maps are :

Europa 
Road Map EUROPE Route 2016-1 


could anyone point me in the right direction for the latest maps for this unit & ive read I need some kind of FSC code to enter into the radio , if that is the case how can I obtain?

Really sorry for sounding so dumb but this my first bmw & this all seems alien to me to start with but if it helps I was able to figure out how to update the main software via a USB stick.

any help is greatly appreciated.

Phil