How to Add More Fingerprint to Eufy Smart Lock

This guide walks you through the simple process of adding more fingerprint to Eufy smart lock, ensuring multiple users can access your home securely. You’ll learn setup tips, troubleshooting, and best practices for reliable performance.

Key Takeaways

• Multiple fingerprints can be added to your Eufy smart lock, allowing family members or trusted guests secure access without sharing codes or keys.
• Use the Eufy Security app to manage fingerprint enrollment—this is the only official method supported by Eufy for adding new prints.
• Clean your finger and the sensor before scanning to ensure accurate and successful fingerprint registration.
• Each fingerprint must be scanned multiple times during setup to create a complete digital map for reliable recognition.
• Store fingerprints under unique names like “Mom” or “Dad” so you can easily identify and manage them later.
• Test each new fingerprint immediately after adding it to confirm it works before relying on it for daily use.
• Update your Eufy app and lock firmware regularly to maintain compatibility and improve fingerprint recognition accuracy.

How to Add More Fingerprint to Eufy Smart Lock

If you’ve recently installed a Eufy smart lock or are looking to expand access for family members, roommates, or trusted guests, you’re in the right place. One of the most convenient features of Eufy smart locks is the ability to unlock your door with just a touch of your finger. But what happens when you want to add more fingerprint to Eufy smart lock? Whether you’re setting up access for your spouse, teenager, or a frequent guest, this guide will walk you through the entire process—step by step—so you can do it quickly, safely, and correctly.

In this comprehensive how-to guide, you’ll learn everything from preparing your device and using the Eufy Security app to troubleshooting common issues and maintaining optimal performance. We’ll also share practical tips to ensure your fingerprints are recognized reliably every time. By the end, you’ll be able to manage multiple users with ease and enjoy the full benefits of your Eufy smart lock.

Let’s get started!

Why Add More Fingerprints to Your Eufy Smart Lock?

Before diving into the steps, it’s helpful to understand why adding multiple fingerprints is such a valuable feature. Traditional locks require physical keys, which can be lost, copied, or forgotten. Smart locks eliminate these hassles by offering keyless entry options like PIN codes, smartphone unlocking, and—most impressively—fingerprint recognition.

Adding more fingerprints allows:

• Convenient access for multiple users: No need to share a single key or remember a complex code. Each person can use their own fingerprint.
• Enhanced security: Fingerprint authentication is unique to each individual, making it harder for unauthorized people to gain entry.
• Quick and seamless entry: A simple touch unlocks the door in under a second—perfect for when your hands are full or it’s dark outside.
• Customizable access control: You can assign names to each fingerprint and even remove access if someone no longer needs entry.

Whether you’re managing a busy household or running a short-term rental, the ability to add more fingerprint to Eufy smart lock gives you flexibility and peace of mind.

What You’ll Need Before You Begin

Before you start adding fingerprints, make sure you have the following:

• A compatible Eufy smart lock: Most Eufy models support fingerprint scanning, including the Eufy Smart Lock Touch, Smart Lock Touch + Keypad, and Smart Lock C210. Check your model’s specifications if you’re unsure.
• The Eufy Security app installed on your smartphone: This app is available for both iOS and Android devices and is essential for managing your lock.
• Your smartphone connected to Wi-Fi: The app needs an internet connection to sync with your lock and update settings.
• A registered Eufy account: If you haven’t already, download the app and create an account using your email address.
• The person whose fingerprint you’re adding: They should be present during the setup process to scan their finger.
• A clean finger and sensor: Dirt, moisture, or oil can interfere with scanning accuracy.

Having these items ready will help ensure a smooth and successful fingerprint enrollment process.

Step-by-Step Guide: How to Add More Fingerprint to Eufy Smart Lock

Now that you’re prepared, let’s walk through the process of adding a new fingerprint to your Eufy smart lock. Follow these steps carefully to avoid errors and ensure reliable recognition.

Step 1: Open the Eufy Security App

Start by unlocking your smartphone and opening the Eufy Security app. If you haven’t used it in a while, make sure it’s updated to the latest version. You can check for updates in your device’s app store.

Once the app opens, log in with your Eufy account credentials. If you’re already logged in, you should see your home screen with a list of connected devices.

Step 2: Select Your Smart Lock

On the home screen, locate your Eufy smart lock from the list of devices. It will usually appear with a lock icon and the name you assigned during setup (e.g., “Front Door Lock”).

Tap on the device to open its control panel. Here, you’ll see options like “Unlock,” “Lock,” “History,” and “Settings.”

Step 3: Navigate to Fingerprint Management

In the device control panel, look for the “Fingerprint” or “User Management” section. This may be located under a menu labeled “Settings,” “Access,” or “Users,” depending on your lock model and app version.

Tap on “Fingerprint” to view the list of currently registered fingerprints. You’ll see names like “Admin,” “User 1,” or custom labels you’ve assigned.

Step 4: Add a New Fingerprint

To add a new fingerprint, tap the “+” or “Add Fingerprint” button. The app will prompt you to enter a name for the new user. This is important for identification later, so choose something clear and descriptive, such as “Sarah,” “Dad,” or “Guest.”

After naming the user, the app will guide you through the scanning process.

Step 5: Scan the Finger Multiple Times

This is the most critical part of the process. The Eufy smart lock requires multiple scans of the same finger to create a detailed digital map. Here’s how to do it correctly:

• Ask the person to place their finger flat on the fingerprint sensor located on the lock.
• Hold it steady for about 2–3 seconds until the app confirms a successful scan.
• Remove the finger and wait for the next prompt.
• Repeat this process 5–8 times, adjusting the angle slightly each time. The app will guide you to scan different parts of the fingerprint (edges, center, tip).

Tip: Encourage the person to use the same finger they plan to use daily. Consistency improves recognition accuracy.

Step 6: Confirm and Save the Fingerprint

Once all scans are complete, the app will display a message like “Fingerprint added successfully.” At this point, the new fingerprint is stored in the lock’s memory.

You can now exit the setup screen and return to the main fingerprint list. The new user should appear with the name you assigned.

Step 7: Test the New Fingerprint

Before relying on the new fingerprint for daily use, it’s essential to test it. Ask the person to approach the lock and place their finger on the sensor.

If the lock unlocks immediately, great! The fingerprint has been registered correctly.

If it fails to recognize the print, don’t panic. You can re-scan the fingerprint or try a different finger. We’ll cover troubleshooting in a later section.

Best Practices for Adding Fingerprints

To ensure your fingerprints work reliably every time, follow these best practices:

Use Clean, Dry Fingers

Dirt, sweat, oil, or moisture can interfere with the sensor’s ability to read your fingerprint. Before scanning, wash and dry your hands thoroughly. Avoid scanning immediately after using hand sanitizer or lotion.

Scan Multiple Angles

Fingerprints aren’t always placed on the sensor in the exact same way. By scanning different angles during setup, you increase the chances of successful recognition in real-world use.

Choose the Right Finger

Not all fingers are created equal. Index fingers are often the most reliable because they’re used frequently and have clear ridge patterns. Avoid fingers with scars, cuts, or worn prints.

Name Fingerprints Clearly

Use descriptive names like “Mom – Index,” “Teen – Right Hand,” or “Guest – Temporary.” This makes it easier to manage and remove access later.

Update the App and Firmware

Eufy regularly releases updates that improve performance and fix bugs. Check for app updates monthly and ensure your lock’s firmware is current. You can do this in the app under “Device Settings” > “Firmware Update.”

How Many Fingerprints Can You Add?

Most Eufy smart locks support up to 100 fingerprints, which is more than enough for most households. This includes the admin user and multiple family members or guests.

However, keep in mind that adding too many fingerprints can slightly slow down recognition speed over time. If you’re managing a large number of users, consider using a combination of fingerprints and PIN codes for efficiency.

Troubleshooting Common Fingerprint Issues

Even with careful setup, you might encounter issues when adding or using fingerprints. Here are some common problems and how to fix them.

Fingerprint Not Recognized

If the lock doesn’t unlock when you place your finger on the sensor, try the following:

• Clean the sensor: Use a soft, dry cloth to wipe the fingerprint reader. Avoid liquids or abrasive materials.
• Re-scan the fingerprint: Go back into the app and delete the problematic print, then add it again with fresh scans.
• Try a different finger: Some fingers have less distinct patterns. Switch to your index or middle finger.
• Check for damage: If the sensor appears scratched or cracked, contact Eufy support for assistance.

App Fails to Add Fingerprint

If the app freezes or gives an error during setup:

• Restart the app: Close it completely and reopen it.
• Restart your phone: This can resolve temporary glitches.
• Check Wi-Fi connection: Ensure your phone is connected to a stable network.
• Update the app: Download the latest version from the app store.

Fingerprint Added but Doesn’t Work

Sometimes a fingerprint appears in the app but fails to unlock the door. This usually means the scans were incomplete or inconsistent.

Solution: Delete the fingerprint and re-enroll it, making sure to follow the scanning instructions carefully. Take your time and ensure each scan is clear.

Sensor Feels Sluggish or Unresponsive

If the sensor takes longer than usual to respond:

• Check battery level: Low battery can affect performance. Replace batteries if needed.
• Clean the sensor again: Dust buildup can slow down recognition.
• Reset the lock: As a last resort, perform a factory reset (see user manual for instructions).

Managing Existing Fingerprints

Once you’ve added multiple fingerprints, you’ll want to manage them effectively. Here’s how:

View All Registered Fingerprints

Go to the Eufy Security app > Your Lock > Fingerprint. You’ll see a list of all registered users with their names and status.

Edit or Rename a Fingerprint

Tap on any fingerprint entry to rename it. This is helpful if someone changes their name or you want to clarify which finger was used.

Delete a Fingerprint

If someone no longer needs access (e.g., a former roommate or guest), you can remove their fingerprint:

• Tap on the fingerprint you want to delete.
• Select “Delete” or “Remove.”
• Confirm the action.

The fingerprint will be removed immediately, and that person will no longer be able to unlock the door.

Set Admin vs. User Permissions

Some Eufy locks allow you to assign admin privileges. Admins can add or remove fingerprints, change settings, and view access logs. Regular users can only unlock the door.

To set admin rights, go to the user’s fingerprint settings and toggle “Admin Access.”

Security Tips for Fingerprint Use

While fingerprints are secure, it’s important to use them wisely:

• Don’t share your fingerprint data: Never let someone else scan your finger unless absolutely necessary.
• Use fingerprints alongside other methods: Combine fingerprint access with a backup PIN or smartphone unlock for added security.
• Monitor access logs: The Eufy app tracks every unlock event, including which fingerprint was used. Review this regularly for suspicious activity.
• Disable temporary users promptly: If you’ve added a fingerprint for a guest, remove it as soon as their visit ends.

Conclusion

Adding more fingerprint to Eufy smart lock is a simple yet powerful way to enhance your home’s security and convenience. With just a few taps in the Eufy Security app, you can grant access to family members, friends, or service providers—without ever handing out a physical key.

By following the steps in this guide, you’ll ensure each fingerprint is registered accurately and functions reliably. Remember to keep your app updated, clean the sensor regularly, and test new prints immediately. And don’t forget to manage your users wisely by naming them clearly and removing access when no longer needed.

Whether you’re setting up your first fingerprint or expanding access for a growing household, Eufy smart locks make it easy to stay in control. With the ability to store up to 100 fingerprints and advanced security features, your front door has never been smarter—or safer.

So go ahead, add that extra fingerprint, and enjoy the peace of mind that comes with true keyless living.