InfoTech ExpressSolution

Hardware

Bluetooth mouse, keyboard or headphones won't pair

Bluetooth pairing fails for boring reasons — an old pairing still remembered by both ends, a flat battery, or USB 3 interference from the port next door.

Easy10–15 min6 steps

Read before you start

If a headset or mouse gets hot while charging or the case looks swollen, stop charging it and stop using it — a swelling battery is a fire risk.

This guide is for you if

  • The device never appears in the pairing list
  • It pairs, then disconnects after a few seconds
  • It works on one machine but not this one

Step by step

Work top to bottom

0 of 6 steps done

  1. Charge it and put it in pairing mode

    Most failures are a nearly flat battery or a device that is connected to something else. Hold the pairing button until the light flashes fast.

    A mouse still paired to a phone will not appear on the laptop until it is put back in pairing mode.

  2. Remove the old pairing on both ends

    Delete the device from Bluetooth settings, then remove the machine from the device's memory if it has one. Pair again from scratch.

  3. Move the receiver away from USB 3 ports

    A wireless dongle plugged next to a USB 3 port or a dock can be swamped by interference. Use an extension cable or a port on the other side.

  4. Restart the Bluetooth service

    In Windows, toggle Bluetooth off and on, then restart the machine before reinstalling the driver. On a Mac, delete the Bluetooth preferences as a last resort.

  5. Test the device on another machine

    If it will not pair anywhere, the device is the fault. If it pairs everywhere else, the adapter in this machine is.

  6. Book a bench check for an adapter fault

    If the Bluetooth adapter has disappeared from Device Manager entirely, that is a card or board-level job rather than a settings problem.