How to Change Password on Eufy Lock

Changing the password on your Eufy lock is simple and essential for home security. This guide walks you through the process using the Eufy Security app or the keypad, with clear steps and troubleshooting tips.

Key Takeaways

• Use the Eufy Security app for the easiest password change: The app provides a user-friendly interface to manage access codes remotely.
• You can also change the password directly on the keypad: Ideal when you don’t have your phone nearby or prefer manual control.
• Always test the new password immediately: This ensures the change was successful and prevents lockouts.
• Keep your master code secure and private: Never share it with unauthorized users to maintain home security.
• Update passwords regularly for better protection: Changing codes every few months reduces the risk of unauthorized access.
• Multiple user codes can be managed separately: Assign unique codes to family members or guests for better tracking.
• Troubleshooting is simple with built-in reset options: If issues arise, the app or keypad reset can restore functionality quickly.

Introduction: Why Changing Your Eufy Lock Password Matters

Your Eufy smart lock is one of the most important tools for keeping your home safe. It combines convenience with advanced security, allowing you to lock and unlock your door with a code, smartphone, or even your fingerprint. But just like any security system, it’s only as strong as its weakest link—and that often comes down to your password.

Whether you’ve recently moved into a new home, had a guest stay over, or simply want to refresh your access codes for peace of mind, knowing how to change password on Eufy lock is a must-have skill. The good news? It’s easier than you might think.

In this guide, we’ll walk you through every step of changing your Eufy lock password—whether you’re using the Eufy Security app on your smartphone or working directly from the keypad on the lock itself. We’ll also cover best practices, common mistakes to avoid, and what to do if something goes wrong.

By the end of this guide, you’ll be able to confidently manage your Eufy lock’s access codes, keep your home secure, and enjoy the full benefits of smart home technology.

Understanding Your Eufy Lock: Types and Features

Before we dive into the steps, it’s helpful to understand the different types of Eufy locks and how they handle passwords.

Eufy offers a range of smart locks, including models like the Eufy Smart Lock Touch, Eufy Smart Lock C210, and Eufy Smart Lock E10. While designs and features vary slightly, most support multiple access methods: PIN codes, smartphone unlocking via Bluetooth, fingerprint scanning, and physical keys.

The password—or more accurately, the PIN code—is one of the most commonly used methods. It’s quick, doesn’t require your phone, and works even during a power outage (thanks to backup batteries). That’s why managing and updating your PIN codes is so important.

Most Eufy locks allow you to set:
– A master code (used to manage the lock)
– Multiple user codes (for family, guests, or service providers)
– Temporary codes (expire after a set time)

These codes can be managed either through the Eufy Security app or directly on the lock’s keypad. The app method is generally faster and more intuitive, but the keypad method is useful when your phone isn’t available.

How to Change Password on Eufy Lock Using the App

The Eufy Security app is the most convenient way to change your lock password. It gives you full control over your lock from anywhere, as long as your phone is connected to the internet and your lock is within Bluetooth range.

Here’s how to do it step by step.

Step 1: Open the Eufy Security App

Start by opening the Eufy Security app on your smartphone. Make sure you’re logged into the account associated with your Eufy lock. If you haven’t set up the app yet, download it from the Apple App Store or Google Play Store and follow the initial setup instructions.

Once the app is open, you should see a dashboard with all your connected Eufy devices. Look for your smart lock—it will usually appear with a lock icon and the name you assigned during setup (like “Front Door” or “Back Entrance”).

Step 2: Select Your Lock

Tap on your lock from the device list. This will open the lock’s control screen, where you can see the current status (locked or unlocked), battery level, and access logs.

At the top of the screen, you’ll see options like “Unlock,” “Lock,” and “Settings.” Tap on Settings to proceed.

Step 3: Navigate to Access Codes

In the Settings menu, look for an option labeled Access Codes, PIN Codes, or User Management. The exact wording may vary slightly depending on your lock model and app version.

Tap on this option to view all current access codes. You’ll see a list of active codes, including the master code and any user codes you’ve created.

Step 4: Edit or Add a New Code

To change an existing password, tap on the code you want to modify. You’ll be given the option to edit the code, change its name (e.g., “Mom’s Code” or “Guest Code”), or delete it entirely.

To add a new code, look for a “+” or “Add Code” button. Tap it and enter a new 4- to 8-digit PIN. Eufy recommends using a code that’s easy for you to remember but hard for others to guess—avoid simple sequences like “1234” or “0000.”

You can also set permissions for the new code. For example, you might allow it to unlock the door but not change settings. Some models even let you set time limits—perfect for housekeepers or Airbnb guests.

Step 5: Save and Confirm

After entering the new code, tap Save or Confirm. The app will send the new code to your lock via Bluetooth. You’ll usually see a confirmation message like “Code updated successfully.”

It’s a good idea to test the new code right away. Go to your door, enter the new PIN on the keypad, and make sure the lock responds correctly.

Pro Tips for Using the App

– Keep your phone charged and within Bluetooth range (usually 30 feet) when making changes.
– If the app says “Device offline,” move closer to the lock or check your Wi-Fi connection.
– Use descriptive names for each code (e.g., “Dad’s Code”) so you can easily identify them later.
– Regularly review and delete old or unused codes to reduce security risks.

How to Change Password on Eufy Lock Using the Keypad

Not everyone wants to rely on their phone to manage their lock. That’s why Eufy locks also allow you to change passwords directly from the keypad. This method is especially useful if your phone is dead, lost, or out of range.

Here’s how to do it manually.

Step 1: Enter Programming Mode

To access the lock’s settings, you’ll need to enter programming mode. This requires your current master code.

Start by pressing the “*” key on the keypad, followed by your master code, and then the “#” key. For example: *123456#

If entered correctly, the lock will beep and the LED light will flash green. This means you’re now in programming mode.

Step 2: Select Code Management

Once in programming mode, you’ll need to navigate to the code management section. Press “2” on the keypad to access user code settings.

The lock will beep again to confirm.

Step 3: Choose to Add or Edit a Code

Now you have two options:
– Press “1” to add a new user code.
– Press “2” to edit or delete an existing code.

If you’re adding a new code, the lock will prompt you to enter a user ID (usually a number from 1 to 10, depending on your model). Then enter the new 4- to 8-digit PIN code.

If you’re editing an existing code, enter the user ID of the code you want to change, then input the new PIN.

Step 4: Confirm and Exit

After entering the new code, press “#” to confirm. The lock will beep and flash green to indicate success.

To exit programming mode, press “*” followed by “#”. The lock will return to normal operation.

Important Notes for Keypad Use

– Always use your master code to enter programming mode. If you’ve forgotten it, you may need to reset the lock (see troubleshooting section).
– The keypad method doesn’t allow you to set time limits or permissions—those must be done via the app.
– Be careful not to press random keys during programming, as this can cancel the process.

Best Practices for Managing Eufy Lock Passwords

Changing your password is just the first step. To keep your home truly secure, follow these best practices.

Use Strong, Unique Codes

Avoid obvious codes like birthdays, anniversaries, or repeating numbers. Instead, choose a random sequence that only you and trusted family members know. For example, “7391” is better than “2580” (which follows a straight line on the keypad).

Limit Access to the Master Code

The master code can change settings, add or delete users, and view access logs. Only share it with people you fully trust—like a spouse or partner. Never give it to guests, repair technicians, or temporary helpers.

Create Separate Codes for Different Users

Instead of sharing one code among everyone, assign unique PINs to each person. This way, if someone moves out or loses access, you can delete just their code without affecting others.

You can also name each code in the app (e.g., “Sarah’s Code”) to make management easier.

Set Temporary Codes for Guests

When hosting guests or hiring help, use temporary codes that expire after a set time. For example, give your cleaner a code that works only on Tuesdays from 9 a.m. to 12 p.m.

This reduces the risk of unauthorized access and gives you peace of mind.

Change Passwords Regularly

Experts recommend changing your lock codes every 3 to 6 months—or immediately after a security event, like a lost key or a break-in attempt.

Even if nothing seems wrong, regular updates help protect against long-term risks.

Keep a Backup Record

Write down your master code and store it in a secure place—like a locked drawer or a password manager. Never keep it on your phone or near the lock.

If you forget your code, this backup can save you from a lockout.

Troubleshooting Common Issues

Sometimes, changing your password doesn’t go as planned. Here’s how to fix the most common problems.

“Invalid Code” Error

If the lock says “Invalid Code” after you enter a new PIN, double-check the following:
– Did you enter the correct number of digits? (Most codes are 4–8 digits.)
– Are you using the right user ID when editing via keypad?
– Is the code already in use? Eufy locks won’t allow duplicate codes.

Try re-entering the code slowly and clearly. If it still doesn’t work, restart the process.

App Says “Device Offline”

The Eufy app needs a Bluetooth connection to communicate with your lock. If it says “offline,” try:
– Moving closer to the lock (within 30 feet).
– Turning Bluetooth on and off on your phone.
– Restarting the app or your phone.

If the problem persists, check if the lock’s batteries are low. Replace them if needed.

Forgot Your Master Code

This is a serious issue—but not unsolvable. If you’ve forgotten your master code, you’ll need to perform a factory reset.

Warning: This will erase all codes and settings, returning the lock to its original state.

To reset:
1. Remove the lock’s cover to access the reset button (usually near the battery compartment).
2. Press and hold the reset button for 10 seconds.
3. Re-pair the lock with the Eufy app and set up a new master code.

Only do this as a last resort.

New Code Doesn’t Work

If you’ve added a code but it won’t unlock the door:
– Wait a few minutes—sometimes it takes time for the code to sync.
– Test it during the day when the lock is active (some models disable codes at night unless configured otherwise).
– Make sure the code wasn’t accidentally deleted or overwritten.

Battery Issues

Low batteries can cause erratic behavior, including failed code entries. If your lock is slow to respond or beeps weakly, replace the batteries with fresh alkaline ones.

Most Eufy locks use 4 AA batteries and last 6–12 months with normal use.

Conclusion: Stay Secure with Regular Updates

Changing the password on your Eufy lock is a simple but powerful way to protect your home. Whether you use the Eufy Security app for convenience or the keypad for direct control, the process is straightforward and takes just a few minutes.

By following the steps in this guide, you can:
– Update your codes quickly and confidently
– Manage access for family, guests, and service providers
– Respond to security concerns with immediate action

Remember, smart locks are only as secure as the codes you create and manage. Use strong passwords, limit access, and change them regularly. And if you ever run into trouble, don’t panic—most issues can be resolved with a few simple troubleshooting steps.

Your home deserves the best protection. With your Eufy lock and a little know-how, you’re well on your way to smarter, safer living.