Medley Pebble : How to Fix One-Side Sound Issue? – Avantree Support

One Earbud Has No Sound?

Follow these steps to reset and reconnect both Medley Pebble earbuds.

What does this fix?
If sound is coming from only one earbud, or one earbud keeps flashing blue and does not connect, the two earbuds may have lost synchronization.

Resetting the earbuds and transmitter allows them to create a fresh connection.

Important: Complete all 3 steps below in order. Resetting only the earbuds or only the transmitter may not fully resolve the issue.

Video Guide

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Watch the video guide below, then follow the written steps if you need additional help.

If the video does not play, use the button below to open it on YouTube.

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Step 1 – Reset the Earbuds

Identify the earbud that is not working or is continuously flashing blue.
Place that earbud onto the transmitter.
Wait a few seconds. The other earbud should enter pairing mode.

What you may see:

Flashing Red and Blue

Now reset the other earbud.

For batches before T24L2
Quickly press the MFB button twice.

For batch T24L2 and later
Quickly press the MFB button 5 times.

Successful reset:

Pink → Flashing Blue

The earbud should briefly turn pink and then begin flashing blue.

Place the reset earbud back onto the transmitter.
Remove both earbuds from the transmitter at the same time.
Keep the earbuds close together while they reconnect.

Success check:

Both earbuds are flashing Red and Blue.

This means the earbuds are ready to reconnect with the transmitter.

Step 2 – Reset the Transmitter

Make sure the transmitter is powered on.
Find the RESET button on the transmitter.
Press and hold the RESET button for approximately 5 seconds.
Watch the headphone LED.

The headphone LED should:

Flash Pink for approximately 2 seconds → Flash Red and Blue

This confirms that the transmitter's previous pairing information has been cleared.

Step 3 – Reconnect the Earbuds

Keep both earbuds close to the transmitter.
Do not press any additional buttons.
Wait approximately 5 seconds for the earbuds and transmitter to reconnect automatically.

What you should see when they connect:

Earbud LEDs turn White for approximately 3 seconds, then turn off.

Connection Successful

Check the transmitter LEDs:

Headphone LED: Solid Blue

TV AUDIO LED: Solid White

Put on both earbuds and play TV audio. You should now hear sound from both earbuds.

Still Hearing Sound From Only One Earbud?

If one earbud is still flashing blue or has no sound:

Place both earbuds back onto the transmitter.
Wait a few seconds.
Repeat Steps 1–3 from the beginning.
Make sure you reset both the earbuds and the transmitter before allowing them to reconnect.

Tip: Keep both earbuds close to the transmitter during the reconnection process. Avoid trying to pair them with a phone, tablet, or another Bluetooth device while completing these steps.

Still Need Help?

If you completed all of the steps above and still hear sound from only one earbud, contact Avantree Support. Our team will help you with the next step.

Contact Avantree Support