r/Controller • u/Game_Klller • 2h ago
IT Help Flydigi Vader 4 Pro extra buttons not registering keyboard inputs on Windows 11
I finally got this working, so I'm sharing the fix in case someone else runs into the same issue.
The problem
I have a Flydigi Vader 4 Pro connected to a Windows 11 laptop using the 2.4 GHz USB dongle. I use Flydigi Space Station 3.4.9.5 to map the extra buttons (C, Z, M1–M4) to keyboard keys, including NumPad keys.
The controller itself worked normally, and the button mappings were configured in Space Station, but pressing those buttons produced absolutely no keyboard input. I tested them in Notepad. The same controller and mappings worked on my desktop PC, so the problem appeared to be specific to the laptop.
I also tried Bluetooth, but the keyboard mappings still didn't work.
What fixed it
The Flydigi virtual keyboard and mouse drivers were not installed in Windows, even though their files were present in the Space Station installation folder.
I opened PowerShell as Administrator and ran these commands.
1. Install the virtual keyboard driver
pnputil.exe /add-driver "C:\Program Files\FlydigiSpaceStation\Service\keyfdo.inf" /install
Windows confirmed:
Driver package added successfully.
Driver package installed on device: ROOT\FEIZHI_VIRTUAL_KEYBOARD\0000
2. Install the virtual mouse driver
pnputil.exe /add-driver "C:\Program Files\FlydigiSpaceStation\Service\mousefdo.inf" /install
Windows confirmed:
Driver package added successfully.
Driver package installed on device: ROOT\FEIZHI_VIRTUAL_MOUSE\0000
Both drivers were installed successfully.
Before this, checking Windows system drivers showed that the FeizVKB and FeizVMO driver services did not exist.
The final step: restart Windows
After installing both drivers, I restarted Flydigi Space Station and tested the buttons again, but they still didn't work.
I then restarted the laptop. After the reboot, the extra buttons finally started working and correctly generated keyboard inputs.
I can now use the C, Z and M1–M4 buttons with my assigned keyboard mappings.
If your Vader 4 Pro's extra buttons don't generate keyboard inputs in Windows, even though the mappings are configured correctly:
- Open PowerShell as Administrator.
- Install the virtual keyboard driver using
keyfdo.inf. - Install the virtual mouse driver using
mousefdo.inf. - Restart Windows. Restarting only Flydigi Space Station wasn't enough in my case.
- Test the mapped buttons in Notepad.
Use the INF files included with your existing Flydigi Space Station installation. Don't disable Windows driver-signature enforcement or download random driver files.
Hopefully this saves someone else a few hours or days of troubleshooting!