Found the Samsung NVM Express 3.0 Driver on the Samsung website (started looking after seeing a post on the ASUS Gamer forums).
The drive is now recognized in Magician 5.2.1
I had it fixed after upgrading to Magician 5.3 from here: https://www.samsung.com/semiconductor/minisite/ssd/product/consumer/magician/
They said there is a daily limit on the number of this software. So I found the source here https://www.techspot.com/downloads/5345-samsung-ssd-magician.html
I had this same problem with my 970 EVO Plus, using SM 5.3, with the latest NVMe driver installed, AHCI in the BIOS. In my case, I was setting up the computer offline (no Internet access). Once I connected the computer to the Internet, Magician recognized the drive as supported.
This does not work with XPS 9570 you must follow this guide :
this video: https://www.youtube.com/watch?v=9ngnIKqPOc4
Guide by Steve Schardein can be found here: https://goo.gl/M3iyZc Command prompt code to boot to safe mode minimal: bcdedit /set safeboot minimal Command prompt code to boot back to normal windows: bcdedit /deletevalue safeboot
Restart and you ables to use the Samsung Magician