Eufy Doorbell SYNC Button Not Working- DIY Here

The SYNC button on your Eufy doorbell plays a crucial role in establishing a connection with the HomeBase and ensuring seamless functionality.

However, there may be instances where the SYNC button doesn’t seem to be working as expected.

In this comprehensive guide, we will explore all possible causes behind the SYNC button not working and provide detailed troubleshooting steps to help you resolve the issue and get your Eufy doorbell up and running.

Eufy Doorbell SYNC Button Not Working?

  1. Low Battery Power

One of the most common reasons for a non-working SYNC button is low battery power. Insufficient battery charge can hinder the functionality of the doorbell, including the SYNC button. Follow these steps to address this issue:

a. Check Battery Level: Ensure that the battery level of your Eufy doorbell is adequate. If it is low, recharge the battery or replace it with a fully charged one.

b. Charging Port and Cable: Ensure that the charging port on the doorbell and the cable are clean and free from debris.

Use a clean cloth or compressed air to remove any dirt or dust that may obstruct the charging connection.

c. Verify Charging Method: Ensure that you are using the correct charging method specified for your Eufy doorbell model. Follow the manufacturer’s instructions for proper charging.

2. Connection Issues

If the SYNC button is not working, there might be connectivity problems between the doorbell and the HomeBase or Wi-Fi network.


a. Check HomeBase Connectivity

• Ensure that your HomeBase is properly connected to the power source and the router.

• Verify that the HomeBase LED indicator displays a solid blue light, indicating a successful connection to the network.

b. Verify Wi-Fi Connection

• Check the Wi-Fi connection between the HomeBase and your router. Ensure that the Wi-Fi network is stable and the HomeBase is within range.

• Confirm that your router is broadcasting a 2.4GHz Wi-Fi network, as Eufy doorbells are only compatible with this frequency.

c. Proximity

• Keep your doorbell and HomeBase within a reasonable distance during the SYNC process.

• Move closer to the HomeBase to improve the chances of a successful SYNC.

3. Firmware Update

4. Physical Obstacles

5. SYNC Button Mechanism

6. Power Cycle the Doorbell

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