Thank you for supporting our product. 

If the air pump does not power on, follow the troubleshooting steps below.

1. Check the Battery Charge

• Connect the pump to the charger and confirm the charging indicator appears.

• Allow it to charge for at least 30 minutes.

• Try powering on the pump again.

2. Check the Power Button

• Make sure to press and hold the power button (not just tap it).

• Hold for 2–3 seconds until the display lights up.

3. Reset the Pump

• If the pump remains unresponsive, leave it charging overnight.

• Disconnect and reconnect the USB‑C charging cable, then try again.

4. Inspect for Physical Damage

• Check the USB‑C port for any dust, debris, or visible damage.

• Inspect the charging cable for wear or fraying.

• Try using a different charger (45 W PD recommended) to confirm power delivery.

If you have any other questions, please don't hesitate to contact Nebula Customer Support at service@soundcore.com  for further assistance.