Once you set that variable to 0x0 it will remain, until you flash in some other stock or BIOS locked BIOS region.
I think MSI can flash in mod BIOS, as long as it's same name as original BIOS, however that may only apply to desktop boards, we'll have to test. If your system wont allow mod BIOS to be flashed in using standard MSI Flash method for this system then we wont be able to use stock BIOS and you'll have to dump BIOS region via FPT. After looking at your BIOS images, I doubt this is possible due to non-standard MSI BIOS, this is just default AMI BIOS not MSI branded, I do see the built in flash option so you may get luck with stock mod BIOS, we'll have to test.
That error can be normal, you can test if successful by flashing back your stock BIOS region using FPT as mentioned below. That should have been 0x1 though by default, are you the original owner of this system? If yes, are you on the 10D BIOS already? Anyway, here's how you check it to confirm it's disabled
In the ME System tools package, Flash Programming Tool folder, and inside that a Windows or Win/Win32 folder. Select that Win folder, hold shift and press right click, choose open command window here (Not power shell).
At the command prompt type the following command and send me the created file to modify >> FPTw.exe -bios -d biosreg.bin
Right after you do that, try to write back the BIOS Region dump and see if you get any error, if you do show me image of the command entered and the error give >> FPTw.exe -bios -f biosreg.bin
If you are stuck on Win10 and cannot easily get command prompt, and method I mentioned above does not work for you, here is some links that should help
Or, copy all contents from the Flash Programming Tool \ DOS folder to the root of a USB Bootable disk and do the dump from DOS (FPT.exe -bios -d biosreg.bin)
https://www.windowscentral.com/how-add-c...ors-update
https://www.windowscentral.com/add-open-...windows-10
https://www.laptopmag.com/articles/open-...privileges
Here is simple mod BIOS to test if in BIOS flashing option will allow you to flash mod BIOS or not, this just has BIOS lock disabled by default.
DO NOT use this with FPT, this is only meant as a test with built in BIOS flashing method only.
http://s000.tinyupload.com/index.php?fil...1073224436
If you get invalid image or security error, then that means we'll have to edit FPT BIOS Region dump and reflash that way instead.