https://wiki.dolphin-emu.org/index.php?title=Bluetooth_Passthrough
Here’s the step-by-step for Windows, all in one place, if that’s helpful:
- Download the Windows PR 4385 build here: https://dl.dolphin-emu.org/prs/pr-4385-dolphin-latest-x64.7z
- Extract the archive and launch Dolphin.exe once, then close it out. (This adds a new line your dolphin.ini)
- Download Zadig: http://zadig.akeo.ie/
- Open Zadiq, and in the Options select List All Devices. You should now see a list of USB devices in the dropdown menu.
- Select your Bluetooth adapter (For the broadcom, it’s the BCM20702A0 entry) and click Replace Driver.
- Write down the hexadecimal codes you see under USB ID. (For my broadcom, it’s 0A5C and 21E8. http://i.imgur.com/JqV4BrU.png)
- Convert your codes one at a time to decimal values: http://www.binaryhexconverter.com/hex-to-decimal-converter
- For example, the first number 0A5C gives us 2652, which is my PID. The second, 21E8 gives us 8680 which is my VID.
- Open your dolphin config folder (usually located at C:\Users\\Documents\Dolphin Emulator\Config) and open dolphin.ini.
- Near the bottom of the file, you’ll find entries for VID, PID and DisableDescriptorCheck.
- Set the VID to your decimal VID (mine was VID = 2652) and the PID to our decimal PID (mine was PID = 8680).
- Set DisableDescriptorCheck = True.
After this, when you launch the PR 4385 build, you should be able to sync your Wiimote (a game has to be launched before you can sync).