If you 'Clear Data' before uninstalling you will clear only the root foder, data\data\ ...... dots is nokia here folder name.
It's only visible for root devices.

I have tried to remove one or more countries that I had download from inside the application, but after that, with a file manager the GB data was the same. No mater what the user do, remove the application or manual delete from inside the application the maps still exits. The next problem is what folder I must remove? With this "clever" folder name coding, the user is very difficult to find the right one. That's another bug from HERE.

About the maps backup, as I told it's not the perfect solution, but if you know the countries you have download, you can backup all of them to PC.

Quote Originally Posted by osiris4isis View Post
Looks like the files are tiles with hex value naming (this is bad because what if I only want to save one state or country)
This is happening because Here wants the application works also like Google maps. The user ability to download a small area he needs instead of a entire country. This practical saves the big download mobile data for users