1. The crest does not light up.

Possible causes:

• It is not connected to the power supply.

• Loose USB connection.

The device is turned off.

Solutions:

• Make sure the USB cable is firmly connected to the inverter and the power supply.

• Check that the USB power source is working.

• Press and hold the ON/OFF button to turn it on.

2. The light mode does not change.

Cause:

• The button is being held down. Solution:

• With the device turned on, briefly press the ON/OFF button.

3. The crest falls out of the window.

Possible causes:

• The window was not completely clean or dry.

• The tape was not applied correctly. Solutions:

• Clean and dry the window thoroughly before placing the crest.

• Secure the adhesive tape firmly to the front of the crest before attaching it.4.The crest makes a continuous buzzing or beeping sound.Cause:

• Normal noise from the EL panel.

Solution:

• No action required.

A slight buzzing sound is normal and does not affect the operation or quality of the product.

5. The crest shows physical damage.

Cause:

• Impact or misuse.

Solution:

• The warranty does not cover damage from bumps or accidents.

WARRANTY

2-year limited warranty against manufacturing defects.

It does not cover:

• Misuse

• Accidents

• Water damage

• Natural wear and tear

Contact customer support for additional assistance at customersupport@officialcrests.com

1. The crest does not light up.

Possible causes:

• Battery dead.

• Switch in incorrect position.

Solutions:

• Charge the device for 1–2 hours.

• Check that the switch is in the light or sound position.

2. The light is dim or flickers without being in flashing mode.

Cause:

• Low battery.

Solution:

• Fully recharge the device.

3. The crest makes a continuous buzzing or beeping sound.

Cause:

• Normal noise from the EL panel.

Solution:

• No action required.

A slight buzzing sound is normal and does not affect the operation or quality of the product.

4. The lanyard does not stay attached.

Cause:

• Hooks not properly secured.

Solution:

• Check that the hooks are fully engaged.

WARRANTY

2-year limited warranty against manufacturing defects.

It does not cover:

• Misuse

• Accidents

• Water damage

• Natural wear and tear

Contact customer support for additional assistance at customersupport@officialcrests.com

1. The crest does not light up.

Possible causes:

• Battery dead.

• The button was not held down long enough.

Solutions:

• Charge for at least 1.5–2 hours.

• Press and hold the ON/OFF button for 2 seconds.

2. The light mode does not change.

Cause:

• The user is holding down instead of pressing briefly.

Solution:

•With the device turned on, press the button briefly once.

3. The crest turns off quickly.

Cause:

• Low battery or not fully charged.

Solution:

• Fully recharge.

4. The light is weak.

Cause:

• Battery depleted or almost depleted.

Solution:

• Recharge the device.

WARRANTY

It includes a 2-year limited warranty against manufacturing defects.

It does not cover:

• Water damage

• Falls or blows

• Normal wear and tear

• Misuse

Contact customer support for additional assistance at customersupport@officialcrests.com