How to Fix Logitech K380 Multi-Device Keyboard Easy-Switch Lights Flashing But Not Pairing

Quick Diagnosis

This issue occurs when the keyboard's internal EEPROM memory holds onto corrupted pairing tables, causing it to reject new Bluetooth handshakes. Executing a hardware button combo sequence wipes the EEPROM clean and restores the factory pairing default state.

Technical diagnostic blueprint diagram for the Logitech K380 Multi-Device Keyboard showing symptoms of Easy-Switch Lights Flashing But Not Pairing.

Step-by-Step Resolution

  1. 1

    Slide the power switch on the left side of the keyboard to the 'On' position.

  2. 2

    Press the Escape key followed by the 'O' key, then release both keys.

  3. 3

    Press the Escape key followed by the 'O' key a second time, then release both keys.

  4. 4

    Press the Escape key followed by the 'B' key, then release both keys.

  5. 5

    Observe the F1, F2, and F3 Easy-Switch lights flashing simultaneously to verify the hardware reset is complete.

  6. 6

    Turn the keyboard off and back on to start pairing a clean connection on your chosen channel.

Alternative Causes & Edge Cases

  • Applies to Logitech K780 and Logitech Pebble Keys 2 K380s models.
  • Low battery voltage can prevent the keyboard's Bluetooth transmitter from broadcasting a strong enough beacon to pair.