Hello @Klem
I'm in the same boat with a P770ZM. I can see the drive 970 EVO Plus in the Samsung Magician app, and showed to clone to it, but can't get it to boot. This is a personal laptop I use for work and I've been trying to find an old drive on ebay that is larger than 128GB. I do CAD work and my programs are pretty big. I have placed a dump below if you think you could help. I've reached out to Origin, but they have already archived everything. I will request their latest bios, but don't know if it will help. Any help would be greatly appreciated.
https://mega.nz/file/K0Z3hSIZ#ce-7XngK5d7OQp-AjfULi0d0WX5skYic_Ke6t9_Q4_0