Find the cause step by step
- Put both earbuds in the case for 15 minutes so both are charged.
- On the phone, forget the earbuds in the Bluetooth list. If two names show up (one per bud), forget both.
- Do the reset from the manual: on many models, lid open and button held for 10 to 15 seconds until the light changes color.
- Take both buds out of the case at the same time, wait for the light to blink and pair again. Tap Left and Right above to check.
Symptom, cause and fix
| Symptom | Likely cause | What to do |
|---|---|---|
| Only one bud lights up | The other bud has no charge | Clean the contacts and charge |
| Two names show up on the phone | The buds were paired separately | Forget both and reset |
| One bud connects after a few seconds | Slow re-sync | Take both buds out of the case together |
| Still one bud after the reset | That bud is faulty | Warranty or a replacement bud |
Related questions
Can I use just one wireless earbud?
On most models, yes: leave the other in the case. If the one you use is the secondary bud, some models need to be paired again.
Why does one bud drain much faster?
The main bud handles the connection to the phone and uses more battery. If the gap suddenly got much bigger, that bud’s battery may be wearing out.
Does a reset erase anything?
It only erases the pairings saved in the earbuds. After the reset, you need to pair them again with each device.
Only one AirPod connects. How do I reset AirPods?
Put both AirPods in the case and close the lid for 30 seconds. Forget them in Settings › Bluetooth, open the lid, hold the button on the back of the case for about 15 seconds until the light flashes amber, then white, and pair again.
Only one Galaxy Bud connects. What should I do?
Put both buds in the case, open the Galaxy Wearable app (or the earbuds’ settings under Connected devices) and use Reset earbuds. Then take both out together and pair again.
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Updated November 12, 2026.