JD20U Won’t Turn On
Published at: 2026-05-21
Power connection and startup troubleshooting
Potential Causes
- The power adapter is not fully connected.
- The power outlet is not working properly.
- The Power button was not pressed long enough.
- The Mode button was pressed instead of the Power button.
- A non-official adapter may be causing voltage or current mismatch.
- The device may need further inspection.
Troubleshooting Steps
- Check the power connection
Make sure both ends of the power adapter are securely plugged in. - Check the power outlet
Try a different outlet or test the same outlet with another electronic device. - Press and hold the Power button
Press and hold the Power button for 2 seconds to turn on the device. A short press or pressing the Mode button will not turn it on. - Use the official adapter
Please use the official JD20U power adapter to avoid voltage or current mismatch.
Details
If the device still cannot turn on after the steps above, our Customer Support Team will be happy to help. Please prepare your order number, a short video showing your attempt to turn on the device, and your device SN code / Serial Number, then fill out the form.
Where to find the SN code:
For the JMOON by Ulike ReGlow Max (JD20U), the SN code / Serial Number is located at the bottom of the device, near the area below the Jmoon logo.
For the JMOON by Ulike ReGlow Max (JD20U), the SN code / Serial Number is located at the bottom of the device, near the area below the Jmoon logo.
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