Windows 10 Mobile has a new Maps app, but its not quite as feature complete as HERE Drive +. If you at any point reset your upgraded Windows 10 Mobile handset you likely lost the HERE Drive + app, and as can be seen above would not have been able to re-install it.
WindowsMania.pl were not happy with this, and have decided to do something about it.
With Windows 10 Mobile now thoroughly jailbroken, getting HERE Drive + back is now as simple as side-loading.
The full instructions on how to do this, and the relevant XAPs can be found at XDA-Developers here.Source