I think I've tried every single sugestion I saw, but I still have the same problem. I pair the wiiu pro controller with the windows bluetooth assistant, the pro controller is shown in Wiinusoft but even after I connect it as a Xbox controller the lights keep flashing. The rumble identification works perfectly, but that's all, the controller does not work at all. I installed the SPC driver and tried other wiinusoft/wiinupro versions. I use Windows 8.1. Please, help me!
Edit: It is recognized in Steam, there's a rumble identification option too... and it is shown as a Xbox controller there... but that's all, lights flashing in the same way...
Never mind mate, found the answer in the FAQ. It’s:
Q: My Wii/U controller LEDs don't stop flashing after I connect it to WiinUPro/Soft and there isn't any input detection. A: This can be a tricky one to solve as somewhere from the Bluetooth device to the connection opened has gone wrong. This could mean you have a bad connection and simply need to reconnect the device or your Bluetooth dongle doesn't properly communicate with Wii/U controllers or Windows is just being weird. Try using different methods of pairing your controller or if you are feeling brave try installing the Toshiba Bluetooth Stack.
In Reddit, a guy called "Jayspike" told his way to solve the problem, it has kinda worked with me (still bugs in the process sometimes but if when it works, it's perfect). Down below I'm gonna paste his text:
I've been attempting this for a while now using other threads on Reddit but was unable to be successful with all the installing and troubleshooting I had to do. I found the EASIEST fix that was just released by WiinUPro and I had to share! There are NO INSTALLATIONS required, just connecting your controller via Bluetooth and running a program.
Step 1: Pregame
Turn OFF Bluetooth from your taskbar or search "Bluetooth" in Windows search
Step 2: Downloads
Download WiinUSoft 2.1 and the Windows 10 Hotfix, extract them both to your desktop. (You might want to extract the Hotfix into a new folder on your desktop as it includes 4 folders and a readme)
Step 3: Connect the Wii U Pro Controller
Open up Bluetooth settings by either clicking the Bluetooth logo on your taskbar or searching "Bluetooth settings" in the windows search.
Turn Bluetooth "On". It should say your PC is now searching for a device. At this point, grab your WiiUPro controller and press the red sync button on the back. Your PC should now show something along the lines of "Game controller" or "Nintendo RVL-XXX-XX-XX" Ready to pair. Just so you don't lose connection keep pressing that red button.
Click on the "Pair" button and then it will ask you for a PIN. Type in NOTHING. Leave it blank and hit "Next". Your device should start to pair. If it doesn't pair immediately and there is a loading bar, press that damn red button some more!. Now your controller is connected.
Step 4: WiinUSoft
After your controller is connected you can close out Bluetooth settings, go to your desktop and open up that WiinUSoft 2.1 folder. Inside there should be about 7 files, one specifically named "Nintroller.dll".
EDIT: FORGOT. BEFORE THIS NEXT PART YOU NEED TO GO INTO THE WIINUSOFT FOLDER AND CLICK "SCP_DRIVER". FROM THERE CLICK ON "SCPDRIVER.EXE" AND UNCHECK BLUETOOTH DRIVER THEN CLICK INSTALL, AND EXIT
While this folder is open you want to open up the other folder you put the hotfix downloads in, and open up "Fix 1". As you'll see, there's another file named "Nintroller.dll" in there. This is the first hotfix, and it should work for about 80% of you.
If "Fix 1" does NOT work for you, make sure you followed every step 100% correctly, and try it with a different fix. If no fixes work and you're doing everything right, you're out of luck and will have to wait for a future update
All you do is simply COPY the file, and paste it into the WiinUSoft 2.1 folder you made on your desktop. Windows will ask you if you want to replace the existing file named the same thing and you will click on "Fuck Yes". After this you want to close all your folders out. Re-open the WiinUSoft2.1 folder, and click on "WiinUSoft.exe" and BAM you should see your controller on the left side. From here click on the Xbox logo, "Controller 1" and then it will go onto the right side. From here you can go into your gaming softwares for example I'm using this for the Dolphin emulator, and the controller will show up in settings and you will be able to configure the buttons.
That should be all to it!
If you guys have any questions I'll be happy to try and help. I'm no developer or anything, just a fan trying to play some gamecube on his PC with a wireless controller. But I'll do my best!
P.S. If you're playing Dolphin Gamecube games like I am, I'd recommend when you configure your controller you set the right and left bumpers as R and L ANALOG for your controller. The WiiU Pro controller has digital triggers however the Gamecube used analog triggers, and its key to have these in some games like Super Mario Sunshine. But setting it as the bumpers makes it surprisingly comfortable and easy to use. Oh and I set the Z button as select instead of a bumper.