I’m sure that the mod is OK… don’t have time to check it now, but i will.
You can make a new offer post and attach on the same post the mod file (Compressed RAR/ZIP, less than 6Mb), and describe the contents of the mod.
No problem, i double check and it seems still OK ! Be sure i’ll share it 
Even if a “peculiar” user doesnt trust the shared files or prefers to do the mod himself, at least he will know that there’s a success report, it’s always a valuable asset for other forum visitors.
Totally agree on that ^^
So i tried to flash the modded BIOS => YOLO mode activated 
And i encounter the “Secure flash check fail” so i follow the guide
No problem at all to unlock it, steps are well explained ^^
And i can tell you that the modded BIOS i did with yours guides is a success !
I can see the nvme drive on a pci-e x4 card adapter as a “PATA” and installed Win10 on without a issue 
I am performing tests this week-end, as i encounter a problem with a toshiba nvme drive who wasn’t performing at it’s best (surely a driver issue) and i have others nvme drives (Samsung, Hynix,etc) to test with.
I’ll reply as soon as i finish my tests 