As part of the service does Kia update the firmware/ECU software as standard?
If your dealership is staffed by decent, customer-oriented staff, then while your vehicle is with them for servicing, they should check for any system updates available and install FOC, if required.
As stated in post #3, should an updated map be available, they normally charge for that and ÂŁ40.00 inc VAT is KIA's recommended charge for that work. There has been the odd anecdotal report of some dealers charging less than that or even not at all!
Securing illegal material from internet or other sources is decidedly unwise and any files or folders downloaded may well have been infected as they only turn up on seriously iffy websites. Ebay has some shady people who will sell what they claim to be the latest material for your system but many of them charge far more than KIA dealers and there is no comeback, whereas your dealer will mend anything that might go wrong during installation or as a result of that installation.
Just to be clear about the legality, or illegality, that I mentioned, an offence would be committed through infringing intellectual property rights by purchasing or downloading material that belongs to KIA and has clearly been purloined from their possession at some stage in the production, shipping or final sale of a vehicle, copied and distributed for money, for sheer devilment or any other reason.
UVO changes things, however.