There may be four reasons why there is no sound on one earphone of Xiaomi Air2 SE Bluetooth headset:
1. There is a problem with the music source. The music itself is monophonic. This situation is normal. You only need to play other normal music.
2. Bluetooth connection failure. This is an occasional failure with a very small probability. You only need to disconnect the Bluetooth connection and then reconnect.
3. Once the Bluetooth headset has power and the other is exhausted, there will be a situation where there will be no sound while ringing. You only need to fully charge both Bluetooth headsets.
4. The motherboard of the Bluetooth headset is faulty, and there are problems such as poor contact. This is a hardware fault and needs to be repaired at the after-sales center.
