I'm trying to install Kali Nethunter on my OnePlus 7Pro (1917) as per the instructions Here, but I'm hitting a wall on my Windows box at the MsmDownload step.

So the steps don't say, but I assume I needed to install the OnePlus USB drivers, so I did and when I plug in the OnePlus in EDL mode, I see "Qualcomm HS-USB QDloader 9008" on COM6, but it says the driver is unsigned and seems to set some baud rate of 9600 N81. When I fire up MsmDownload after that, I see a "COM6 N/A" and if I click start it'll just say "Waiting for device"

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Some other sites talked about having to set bcdedit, but when I do I get:

PS C:\WINDOWS\system32> bcdedit
The boot configuration data store could not be opened.
The configuration registry database is corrupt.
The error itself is outside the scope of the forum (I'm trying various ways to rebuild it w/o re-installing Windows), but I'm trying to understand what the bcdedit is needed for and if I have a way around it.

So is it this driver or is there a setting I've got wrong (baud?) or something else I can do? Otherwise, it where another way to install the guac image via TWRP or something linux based?