@Lost_N_BIOS I did everything as you said. But now Qflash does not see my modified file.
@Seraph1m :
If the QFlash tool doesn’t even detect the original BIOS file, there is something wrong with your USB Flash drive resp. its formatting.
@Fernando
If the file is not edited from 01 to 00, the Qflash file sees. After editing, it will stop seeing it
@Seraph1m :
What did you edit?
By the way - the topic “How to flash a modded BIOS” has nothing to do with this thread. If you have a problem while trying to flash a modded BIOS, please post it into the telated thread.
@Fernando
I figured it out. I flashed the BIOS with the NVMe module through Qflash, but the BIOS and W10 do not detect my SSD M2
@Seraph1m :
Provided, that
a) the NVMe module has been properly inserted into the BIOS,
b) the modded BIOS has been properly flashed and
c) the M.2 port of your computer supports the NVMe protocol,
the BIOS and the Win10 Setup (booted in UEFI mode) will detect your NVMe SSD.
@Fernando
a) Lost_N_BIOS said that the NVMe module was inserted correctly.
b) I using Qflash
c) This M.2 (compared by Model \ Module P / N.) is in the list of supported hard drives of my motherboard (Aorus master z390).
Downloaded to UEFI, does not detect
seems flash was not successful in this case
@Seraph1m The Gigabayte Aorus Z390 Master has native NVMe support and the 3 "classic" modules (Nvme, NvmeSmm, NvmeInt13- plus a module NvmeDynamicSetup) are all present. Why would you want to make a bios mod here? Or did I miss something?
Windows should detect/see an additional NVMe disk correctly connected to your board even without Bios support! (Afaik is bios support only needed if you want to boot from the device.)
Maybe @Fernando could explain what happens if NvmExpressDxe_4 is there in addition to the other modules?
Did you ever try with your native bios?
Are you sure your NVMe disk is properly seated in the M.2 connector?
@Seraph1m :
After having read the specifications of your mainboard I want to let you know the following:
Since your Intel Z390 chipset mainboard natively supports NVMe, it was not a good idea to additionally insert an NVMe module into the BIOS. The fact, that neither the BIOS nor the OS could see your NVMe SSD, has another reason.
I suspect, that you have either inserted the NVMe SSD into a not matching M.2 port (the first M.2 port is only usable with an Intel® CNVi wireless module) or the in-use M.2 port shares the PCIe lanes with any of your other SSDs/HDDs (for details look into your mainboard manual).
This is what I recommend to do:
1. Flash the latest original BIOS.
2. Insert the NVMe SSD into one of the M.2 ports, which supports PCIe x 4.
3. Unplug all other HDDs/SSDs.
4. Enter the BIOS, restore your prefered settings, but make sure, that the "Secure Boot"and “Fast Boot” options are disabled.
3. Boot off an USB Flash Drive containing your desired Win10 Edition in UEFI mode.
The CNVi connector is located in a way that it would (almost) be impossible to mount the NVMe SSD there:
@Seraph1m @Lost_N_BIOS @Paulos7 @XGen @lfb6
Since Seraph1m’s problem has nothing to with >this< thread, where he/she had posted it, I have moved the complete discussion into a separate thread.
@lfb6
@Fernando
So the fact of the matter is, the computer I initially did not see in any of the three ports of M.2. I would not be so perverted over my computer if it all worked.
I tried it, but it didn’t show anything. Therefore I came to this forum for help.
So as not to insert M.2 correctly, you need to have curved arms
Fernando, Right now I will try what you wrote.
1.) You wouldn’t be the first one
2.) It happened to me, too. Moved my NVMe SSD from motherboards M.2 slot (connected to H97 chipset Gen 2 x 2) to PCIe slot with adapter card (connected directly to processor Gen 3 x 4) and had to re-seat it in the connector… 
(My NVMe SSD worked connected to H97 chipset with RST 16.8.2.1002 driver, but not when installed via adapter card- had to use Windows10 native driver?)
It just so happened that I have crooked hands and did not have the strength to insert the SSD to the end))
As soon as I inserted, my system immediately saw it.
I apologize to all for my stupidity and time spent on me)
@Seraph1m :
Thanks for your feedback!
It is fine, that you finally got the NVMe SSD working with your system.