My device won’t appear or connect

The steps depend on whether you are pairing a device for the first time or reconnecting one that is already in your app.

If the problem is with a remote, see My remote is missing or stopped working after an update.

Check these first

• Turn on Bluetooth on your phone.
• Make sure the Lumos app has permission to find and connect to nearby devices.
• Keep the helmet or light close to your phone.
• Check that the device can turn on. If it cannot, charge it using its normal charging method.
• Use the latest Lumos app.

Check Bluetooth permissions

On iOS: open Settings → Privacy & Security → Bluetooth and allow access for the Lumos app. Turning on Bluetooth alone does not grant the app permission to use it. See Apple’s Bluetooth permission guide.

On Android: open your phone’s settings for the Lumos app and check Permissions. Allow Nearby devices if that permission is shown. Menu names vary by phone and Android version. See Google’s app-permission guide.

After changing a permission, return to the Lumos app and try again.

Check that the Lumos app has permission to discover and connect to your devices.

My device does not appear when I try to pair it

A device that is simply powered on may not be in pairing mode.

1. Put the helmet or light into pairing mode using its physical power button. Follow the instructions for your model.
2. In the Lumos app, open Dashboard and tap +.
3. Look for the device in the pairing screen.
4. Tap Pair beside the correct device.
5. Complete any remaining setup, including the mounting position for a bike light.

Pairing indicators vary by model. Use the model-specific instructions or the in-app help rather than expecting every device to show the same light pattern.

For the complete procedure, see Pair your helmet and lights with the app.

My device appears, but pairing does not finish

1. Make sure you selected the correct device.
2. Keep it close to your phone and in pairing mode.
3. Complete one device’s pairing before starting another.
4. If pairing fails, close and reopen the app, restart the device, and put it back into pairing mode.
5. Return to Dashboard → + and try again.

If the app opens a light-position screen, finish that step before continuing with another device.

Do not restart a device while a firmware update is actively progressing. For an update problem, use A firmware update failed or stopped instead.

My device is already listed, but it is offline or will not open

An existing card means the device has been paired with the app. It does not mean the device is currently connected.

1. Turn the device on.
2. Keep it near your phone with Bluetooth enabled.
3. Open the Lumos app and wait for it to reconnect.
4. Once connected, try opening its card again.

If it still will not connect, close and reopen the app and restart the device, provided no firmware update is in progress.

You do not need to remove and pair a helmet or light again after a normal firmware update. Turn it on and wait for automatic reconnection.

How to Reconnect an Offline Device：https://youtube.com/shorts/i6jHyWMMj1I

A device can remain listed while offline. Turn it on and wait for it to reconnect.

I changed phones, or switched back to my previous phone

Pair the device with the app on the phone you want to use now.

You do not need to unpair it from the previous phone first. If you later switch back to the previous phone, you will need to pair it again there.

For details about which settings are retained, see Use your Lumos devices with another phone.

My device is connected, but I cannot use Customize

This may be an update requirement rather than a connection problem.

If any paired device is not running the latest firmware available for it, tapping Customize displays a prompt asking you to update all devices first.

Complete the available firmware updates, then return to Customize.

See How to update the Lumos app and device firmware.

Still unable to connect?

Contact Lumos Support and include:

• Your device model.
• Your phone model and iOS or Android version.
• Your Lumos app version.
• Whether the device is missing from the pairing screen, fails during pairing, or remains offline.
• Whether it previously worked with this phone.
• A screenshot or short video of the issue.
• The firmware version, if you can access it.

Do not delete the app or clear its data as a troubleshooting shortcut. App-only draft scenes and custom flash patterns cannot be recovered after deletion.