Hi guys, I finally found out how to make Wiimote Motion Plus works in Dolphin 4.0 after trying these couple days.
Macbook Air 2013 Mac OSX 10.9 and Bootcamp Windows 8 compatible.
Mac OSX
1. Open Dolphin4.0, no need to pair with Macbook Air.
2. Open "Wiimote" section and check "Continuous Scanning"
3. Find a pointy stuff and keep pressing the sync button behind the Wiimote+ until it shake.
Windows 8
1.Do everything as the Official Guide to connect your Wiimote+
https://dolphin-emu.org/docs/guides/wii-remote-plus-rvl-cnt-01-tr-connection-guide/
2. Open "Wiimote" section and check "Continuous Scanning"
3. Press 1 + 2 to connect your wiimote
How to pass the Wiimote Motion Plus Scanning Screen?
Like Wii Sport Resort, it can't pass the Checking Screen at first.
Now plug your "Nunchuck" to your wiimote and press "Command + 1/ Ctrl + 1" twice to disconnect and reconnect the wiimote.
The game should told you to unplug your nunchuck, it will start the motion plus scanning after unplug Nunchuck.
The point is: Try to make the game rescan Wiimote that would told you to put your wiimote on stable place.
Macbook Air 2013 Mac OSX 10.9 and Bootcamp Windows 8 compatible.
Mac OSX
1. Open Dolphin4.0, no need to pair with Macbook Air.
2. Open "Wiimote" section and check "Continuous Scanning"
3. Find a pointy stuff and keep pressing the sync button behind the Wiimote+ until it shake.
Windows 8
1.Do everything as the Official Guide to connect your Wiimote+
https://dolphin-emu.org/docs/guides/wii-remote-plus-rvl-cnt-01-tr-connection-guide/
2. Open "Wiimote" section and check "Continuous Scanning"
3. Press 1 + 2 to connect your wiimote
How to pass the Wiimote Motion Plus Scanning Screen?
Like Wii Sport Resort, it can't pass the Checking Screen at first.
Now plug your "Nunchuck" to your wiimote and press "Command + 1/ Ctrl + 1" twice to disconnect and reconnect the wiimote.
The game should told you to unplug your nunchuck, it will start the motion plus scanning after unplug Nunchuck.
The point is: Try to make the game rescan Wiimote that would told you to put your wiimote on stable place.