Sony WF-1000XM3

Factory Reset

1. Place the headset in the charging case, leave the lid of the charging case open, then hold your finger to the touch sensor on the left unit for about 20 seconds.
2. Release your finger when the indicator (red) of the headset turns off after flashing.
3. Then hold your finger to the touch sensor on the right unit for about 20 seconds.
4. Release your finger when the indicator (red) of the headset turns off after flashing.