From your photo it appears you have a NanoVNA-H4, (the 4 is for the 4" screen) hardware version 4.3, or perhaps a good clone. Did it come in a case, or was it just the card and screen? Most 'official' ones of these sold were in a case, and the back of the case had a sticker indicating the hardware version number, which was 4.3_MS for the MS version, and just 4.3 for the SI version. The ZK version is newest, and has different hardware - I think rev 4.4, so you likely don't have it. If you have a magnifier, you can look at the 5351 chip (it is the very small one with 5 tiny legs on each side) and see if its part number starts with MS or SI.
If you use the wrong firmware file, you will likely get a black screen. Make sure that if your version of STM32CubeProgrammer ends in .16, you first do a "Full Chip Erase" function before upgrading the firmware (versions before and after .16 automatically include the erase).
Regarding the firmware, you need the one with H4 in its name, from Hugen's website as previously linked, or from DiSlord's NanoVNA-D github. While it may be nicest to get the correct SI or MS version, either one will work, since they are the same except for the SI/MS initialization, but that setting is also in the Config->Expert Settings menu, and you can choose the correct one after firmware installation.
The driver in Windows 11 that Windows reports as the best one for your device will work fine with the STM32CubeProgrammer, but not DfuseDemo or nanovna-app. Some time ago I did a writeup about the firmware update and drivers that may be of help to you, see the files at this link:
/g/nanovna-users/files/Miscellaneous/DFU-mode%20Driver%20for%20Win10Win11
