It is possible, but you need an SD card with the correct CID. Normally you cannot do this yourself unless you have a specific type of card from Samsung.
However, you can order SD cards with a custom CID on AliExpress.
In addition, you also need the source files for the new map. There are torrents for this. Latest version I could find is 10.65.
But 10.85 should also be somewhere, because you can already buy a fully prepared 10.85 SD card on AliExpress as well for about 25 euros.