Please choose your operating system below to view the pairing guide.

     

Flashing Red - Mouse in Discoverable Mode / Searching for Pairing Host OR Low Battery Power
Steady Green - Charging
No Illumination - Charge Complete
Flashing Green - Unable to Charge - Check Battery Orientation and/or Charge Cable / USB Port

Switch mouse OFF - the power switch for the BT550 is a sliding-type located on the bottom.
Connect USB cable to mouse - scroll wheel should illuminate green when charging.

You can NOW switch the mouse ON and use it while it's charging.
When the scroll wheel stops illuminating solid green, charging is complete, and cable can be disconnected without switching the mouse off.

Place power switch in the ON position.
Remove batteries for 30 seconds (leave power switch in ON position).
Reinstall batteries and test mouse.