Slumber 2 - Fix One Side Sound – Avantree Support

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Slumber 2 – One Side Has No Sound?

If one side of your Slumber 2 has no sound, follow these checks in order.

Start with the cable connection. A loose connection can cause one side to have no sound.

Important: Make sure the plug is fully inserted. A partially inserted plug can cause one side to have no sound.

While audio is playing, gently press the speaker plug inward.

Listen while you press the plug.
If the missing sound comes back, crackles, or cuts in and out, the connection may not be making good contact.

Do not repeatedly bend or twist the cable.

Step 3 – Restart the Slumber 2

Step 4 – Try Different Audio

Play a different song, video, or program that you know sounds normal. Check whether the same side is still silent.

Step 5 – Using Bluetooth? Try Another Phone or Tablet

If you are listening through Bluetooth, connect the Slumber 2 to another phone or tablet.

If both sides work, check the audio settings on the original phone or tablet.

Step 6 – Check Left / Right Audio Balance

Some phones and tablets have a Left / Right Audio Balance setting.

Open your device's Accessibility or Audio settings and make sure the balance slider is centered.

Note: The menu name and location vary by phone or tablet model.

Need More Slumber 2 Help?

If one side still has no sound after the checks above, submit a support request.

Please tell us: