downgrade lumia 950 to w8

It isn't possible to install Windows Phone 8 on devices that were shipped with Windows 10 Mobile out of the box.
 
You won't have HERE maps anymore because it is no longer available. The MAPS on your 950 uses HERE data. I find MAPS to be a good replacement.

When I read your post again I realized you meant you were missing using HERE maps. Sorry if my reply was redundant.
 

Forum statistics

Threads
342,160
Messages
2,265,238
Members
428,858
Latest member
thti