Wow 3900 air mouse fix that worked for me.

Thank you so much Buzz team this is copy and paste .
This fixed my air mouse was only turning on and off nothing more now all works.
Happy as kid in candy store here is fix for problems i had if you look at my older post.
0. Don"t have dongle in at first.
1.Press OK + VOD for 3s till LED lights up
2. RCU enters Pairing Mode, keep distance betwenn the RCU and USB dongle within 30cms,
3. insert the USB dongle into device.
4.LED flash 3 times the turns off , means pairing succeed.
The pairing mode will only last for 30s,please finish all the steps within the time limitation.