Quick answer
One earbud can stop playing because of balance, pairing, charging, debris, cabling or a channel-specific source.
Test both channels separately, check balance and Bluetooth, and try another source before assuming hardware failure.
Common causes
What to check when only one earbud works: connection, balance, Bluetooth, debris and stereo channel.
- Balance setting
- Pairing or connection
- Low battery
- Debris
- Channel-specific source
What to check step by step
- Compare two different audio sources.
- Test at a moderate level.
- Change one variable at a time.
- Note whether the symptom is constant or limited to a frequency or app.
- If it persists, avoid stressing the device and consider a professional check.
How to test it online
Test both channels separately, check balance and Bluetooth, and try another source before assuming hardware failure.
Left/right stereo test — Online. One earbud can stop playing because of balance, pairing, charging, debris, cabling or a channel-specific source.
How to interpret the result
One earbud can stop playing because of balance, pairing, charging, debris, cabling or a channel-specific source.
Test both channels separately, check balance and Bluetooth, and try another source before assuming hardware failure.
What to avoid
- Do not insert needles, clips or objects into the grille.
- Avoid liquid and intense heat during checks.
- Do not keep the volume at maximum during a prolonged test.
When to consider a professional check
If there is visible damage, an unusual smell, abnormal heat, charging problems, or persistent symptoms after a drop or liquid exposure, stop testing and contact the manufacturer or a repair service.
Summary
One earbud can stop playing because of balance, pairing, charging, debris, cabling or a channel-specific source. Test both channels separately, check balance and Bluetooth, and try another source before assuming hardware failure.