How to Change Code on Eufy Door Lock

Changing the code on your Eufy door lock is simple and essential for home security. This guide walks you through every step, from accessing the keypad to saving your new code safely.

Key Takeaways

• Know your model: Different Eufy locks (like Smart Lock Touch, Smart Lock U10) have slightly different setups—check your user manual first.
• Use the EufySecurity app: Most code changes are done via the app, which syncs with your lock over Wi-Fi or Bluetooth.
• Keep your admin code secure: Always protect your master or admin code—it’s required to add or delete user codes.
• Test the new code immediately: After changing the code, lock and unlock the door to ensure it works properly.
• Battery matters: Low battery can cause errors—replace batteries if the lock behaves unpredictably during setup.
• Delete old codes when needed: Regularly remove unused codes to maintain security, especially after guests leave.
• Enable auto-lock for safety: Pair your new code with auto-lock features so the door secures itself after entry.

Introduction: Why Changing Your Eufy Door Lock Code Matters

Your front door is the first line of defense for your home. Whether you’ve just moved in, had a guest stay over, or simply want to refresh your access routine, changing the code on your Eufy door lock is a smart and necessary step. Eufy smart locks are known for their sleek design, reliable performance, and advanced security features—but none of that matters if your access codes fall into the wrong hands.

In this guide, you’ll learn exactly how to change the code on your Eufy door lock, whether you’re using a model like the Smart Lock Touch, Smart Lock U10, or another variant. We’ll walk you through the process using the EufySecurity app, explain how to manage multiple user codes, and share practical tips to keep your home secure. By the end, you’ll feel confident managing your lock’s access settings like a pro.

What You’ll Need Before You Start

Before diving into the code change process, make sure you have everything ready. Rushing in without preparation can lead to frustration or accidental lockouts.

1. Your Eufy Door Lock Is Installed and Connected

Ensure your Eufy lock is properly installed on your door and powered on. It should be connected to your home Wi-Fi network (for models with Wi-Fi capability) or paired via Bluetooth with your smartphone. If you haven’t set it up yet, follow the initial installation guide that came with your lock or use the EufySecurity app to complete the setup.

2. The EufySecurity App Installed on Your Phone

Download the EufySecurity app from the Apple App Store or Google Play Store if you haven’t already. This app is essential for managing your lock remotely, adding or removing codes, and receiving real-time notifications.

3. Your Admin or Master Code

Every Eufy lock has an admin or master code—this is the primary code that allows you to manage all other user codes. If you’ve forgotten it, check the original packaging, your setup notes, or reset the lock (more on that later). Never share this code with untrusted individuals.

4. Fresh Batteries (Optional but Recommended)

While your lock may still function with low batteries, changing codes during a power dip can cause glitches. If your lock shows a low battery warning (flashing red light or app notification), replace the batteries before proceeding.

5. A Stable Internet Connection

For Wi-Fi-enabled models, a strong Wi-Fi signal ensures smooth communication between the app and the lock. If you’re near the edge of your network range, consider using a Wi-Fi extender.

Step-by-Step: How to Change the Code on Your Eufy Door Lock

Now that you’re prepared, let’s get into the actual process. The steps below apply to most Eufy smart locks, but we’ll note any model-specific differences.

Step 1: Open the EufySecurity App

Launch the EufySecurity app on your smartphone. Log in with your account credentials. If you’re using the app for the first time, you’ll need to create an account and verify your email.

Once logged in, you should see your home devices listed. Tap on your Eufy door lock to open its control panel.

Step 2: Access the Lock Settings

In the lock’s main screen, look for a gear icon or “Settings” option—usually located in the top-right corner. Tap it to enter the settings menu.

Here, you’ll find options like “User Management,” “Auto-Lock,” “Voice Control,” and “Firmware Update.” We’re interested in User Management.

Step 3: Navigate to User Codes

Tap on “User Management” or “Access Codes.” You’ll see a list of existing user codes, including the admin code and any guest or family member codes.

Each code will show:
– A name (e.g., “John,” “Guest”)
– The code itself (hidden for security)
– Access permissions (e.g., time-limited, one-time use)

Step 4: Add a New Code or Edit an Existing One

To change a code, you have two options: edit an existing one or add a new one and delete the old.

Option A: Edit an Existing Code

If you want to update a code without changing who uses it (e.g., your own code), tap on the user profile you wish to modify.

Select “Edit Code” or “Change PIN.” You’ll be prompted to enter your admin code for verification.

Once verified, enter the new 4- to 8-digit code. Eufy locks typically support codes between 4 and 8 digits, so choose something secure but memorable.

Tap “Save” or “Confirm.” The app will sync the new code with your lock.

Option B: Add a New Code and Delete the Old

If you’re replacing a code (e.g., after a guest leaves), it’s safer to add a new one and remove the old.

Tap “Add User” or “+ New Code.” Enter a name (e.g., “Mom” or “Cleaner”) and create a new PIN.

Set access permissions if desired:
– Always Active: The code works anytime.
– Scheduled Access: Set specific days and times (e.g., weekdays 9 AM–5 PM).
– One-Time Use: The code works once and then deactivates.

Save the new code. Then, go back to the user list, find the old code, and tap “Delete” or “Remove.” Confirm when prompted.

Step 5: Sync the Changes with Your Lock

After saving, the app will automatically attempt to sync the new code with your lock. This usually takes a few seconds.

You’ll see a confirmation message like “Code updated successfully” or a green checkmark.

If the sync fails, check your internet connection or move closer to the lock (for Bluetooth models). You may need to manually trigger a sync by locking and unlocking the door once.

Step 6: Test the New Code

This step is critical. Never assume the code works just because the app says so.

Go to your door and enter the new code on the keypad. The lock should respond with a green light and unlock.

Try locking it again using the same code. If it works both ways, you’re good to go.

If it fails, double-check the code in the app, ensure you’re entering it correctly, and verify that the lock is powered.

How to Change the Admin Code on Your Eufy Lock

The admin code is the master key to your lock’s settings. Changing it periodically enhances security, especially if you suspect it’s been compromised.

Step 1: Open User Management

Follow the same steps as above to reach the “User Management” section in the EufySecurity app.

Step 2: Locate the Admin Profile

Find the admin user (usually labeled “Admin” or “Owner”). Tap on it.

Step 3: Change the Admin PIN

Select “Edit Code” and enter the current admin code when prompted.

Then, enter your new admin code (4–8 digits). Confirm it by re-entering.

Save the changes. The app will sync the new admin code with the lock.

Important Note:

Changing the admin code will not affect other user codes. However, you’ll need the new admin code for all future management tasks.

Managing Multiple User Codes Like a Pro

One of the best features of Eufy locks is the ability to manage multiple users. Here’s how to do it efficiently.

Create Codes for Family Members

Assign individual codes to each family member. This way, you can track who enters and exits (if your model supports access logs).

For example:
– “Dad” – Code: 1234
– “Mom” – Code: 5678
– “Teen” – Code: 9012

Use the app to name each user clearly.

Set Time-Based Access for Guests

When guests visit, create a temporary code with limited access.

For instance:
– Name: “House Cleaner”
– Code: 2468
– Schedule: Mondays, 10 AM–12 PM

This ensures the code stops working outside those hours.

Use One-Time Codes for Deliveries

Some Eufy models support one-time use codes. Perfect for delivery drivers or repair technicians.

Generate a code in the app, share it with the person, and it will deactivate after one use.

Regularly Review and Clean Up Codes

Every few months, review your user list. Delete codes for people who no longer need access—former roommates, old babysitters, etc.

This reduces the risk of unauthorized entry.

Troubleshooting Common Issues When Changing Codes

Even with the best preparation, things can go wrong. Here’s how to fix the most common problems.

Problem: App Says “Sync Failed”

This usually means the app couldn’t communicate with the lock.

Solutions:
– Move closer to the lock (for Bluetooth models).
– Ensure your phone has a stable internet connection.
– Restart the EufySecurity app.
– Lock and unlock the door manually to trigger a sync.

Problem: New Code Doesn’t Work

You entered the code, but the lock doesn’t respond.

Solutions:
– Double-check the code in the app—did you save it correctly?
– Make sure you’re entering the full code (e.g., 6 digits, not 4).
– Try the admin code to see if the lock is responsive at all.
– Replace batteries if the keypad is dim or unresponsive.

Problem: Forgotten Admin Code

If you’ve lost your admin code, you can’t change other codes.

Solutions:
– Check your original setup notes or email confirmation.
– Use the “Forgot Admin Code” feature in the app (if available).
– Perform a factory reset (see below)—but note: this erases all codes and settings.

Problem: Lock Beeps But Doesn’t Unlock

The keypad responds, but the motor doesn’t turn.

Solutions:
– Check battery level—low power can prevent unlocking.
– Manually turn the lock mechanism to ensure it’s not jammed.
– Re-sync the lock via the app.

How to Factory Reset Your Eufy Door Lock

If all else fails, a factory reset restores the lock to its original state. Use this as a last resort.

Step 1: Locate the Reset Button

Most Eufy locks have a small reset button inside the battery compartment. Remove the cover to find it.

Step 2: Press and Hold the Reset Button

Use a paperclip or SIM tool to press and hold the button for 10–15 seconds.

The lock will beep and the LED will flash, indicating a reset.

Step 3: Reconnect via the App

After resetting, the lock will disconnect from your account. Open the EufySecurity app and follow the setup process again.

You’ll need to re-add all user codes, so have your preferred PINs ready.

Tips for Keeping Your Eufy Lock Secure

Changing your code is just one part of lock security. Follow these best practices:

1. Avoid Obvious Codes

Don’t use “1234,” “0000,” or your birth year. Choose a random sequence that’s hard to guess.

2. Change Codes After Major Life Events

Update codes after:
– Moving into a new home
– Ending a rental agreement
– A breakup or divorce
– A guest staying long-term

3. Enable Auto-Lock

In the app, turn on auto-lock (e.g., lock after 30 seconds). This prevents accidental leave-behinds.

4. Monitor Access Logs

Check the app regularly to see who unlocked the door and when. Some models show timestamps and user names.

5. Keep Firmware Updated

Eufy releases updates to improve security and performance. Enable automatic updates in the app settings.

6. Use Two-Factor Authentication

Protect your EufySecurity account with 2FA. This prevents hackers from accessing your lock remotely.

Conclusion: Stay Secure with Smart Code Management

Changing the code on your Eufy door lock doesn’t have to be complicated. With the EufySecurity app, you can add, edit, or delete codes in minutes—right from your phone. Whether you’re updating your own PIN, setting up a guest code, or performing a factory reset, this guide has you covered.

Remember: security starts with small habits. Change your codes regularly, delete unused ones, and always test new entries. Your home deserves the best protection, and your Eufy lock is designed to deliver it.

By following these steps, you’re not just changing a code—you’re taking control of your home’s safety. So go ahead, update that PIN, and enjoy peace of mind knowing your door is secure.