Likely fix
Fix: Only one Bluetooth earbud works
One earbud usually stops working when the earbuds are out of sync, one side has low battery, the case contacts are dirty, or the earbuds need to be reset.
Quick answer
Put both earbuds back in the case, charge them, clean the case contacts gently, then reset and pair them again.
Important warning
Do not scrape charging contacts aggressively. Dirty contacts are common, but they are easy to damage.
Try this
- 1 Put both earbuds back in the charging case.
- 2 Charge the case and earbuds for at least 10 minutes.
- 3 Check that both earbuds show charging.
- 4 Clean the earbud and case charging contacts gently.
- 5 Forget the earbuds from Bluetooth settings.
- 6 Reset the earbuds using the manufacturer’s method.
- 7 Pair the earbuds again.
Common causes
One earbud is not charged.
Earbuds are out of sync with each other.
Charging contacts are dirty.
One earbud is still connected separately.
Earbuds need a reset.
What to check next
- Check whether both earbuds charge in the case.
- Check whether one earbud appears separately in Bluetooth settings.
- Check whether the case battery is low.
- Check whether resetting restores both sides.