If your MX Vertical mouse loses connection after switching devices while connected using the Unifying receiver, do the following:
- Make sure MX Vertical is turned on and the charging cable is unplugged.
- Using the Easy-Switch button on the bottom of the mouse, select the channel you want to pair to. If you did not pair to the channel previously, the LED should blink rapidly.
- Plug the Unifying receiver into a working port. The channel LED will stop blinking and glow steadily.
NOTE: A USB-A port required.