2015 Ford Explorer Sync 2 to Sync 3 5 months ago.
I went from 3.3 NA17 to 3.4 NA19 the gps stopped working before the update it was just fine. I used a Microsoft Surface Pro with windows 10 PRO. I used the downloader on the website and followed everything. I even did the master reset.
All from forscan even after a Master Reset and deleting with forscan.