Might look like a noob question, but my father uses a Navon A500 + iGO Truck Primo NextGen purchased in 2021 and used for trucking, the map is outdated now.

I've found Naviextras Toolbox, in theory the official app for updating the maps. He only need Hungary, so we bought it from the site. There was no specification it was for heavy vehicles or only for cars, however there was a part which said trucking information. Anyway, we can update the map, but it ignores the truck restriction present on specific known roads.
I don't know how it is put together, so if someone could pinpoint which files are responsible for which information/use I would be really happy: global_cfg, fbl, fda, fpa, ftr, poi.

If I knew which files can update the map, but not mess with the navigation I could manually replace them. Or is it even work like this? I might could find the solutions going trough all the forum, so sorry if I asked something already answered.
Thanks in advance!