The mouse was working fine last night but after I clicked the update and shut down button it suddenly stopped working. I don't have the dongle as its lost and I have been using bluetooth and the usb cable to use it ever since. The pc doesn't recognize the mouse and It wont go into pairing mode either when I press the necessary buttons. The cable doesn't work either but when I plug it in the lights start working so it isnt an issue with faulty cable or anything like that. Can someone please help me with this.