ButterflyMX Error Codes and How to Fix Them

ButterflyMX devices are reliable, but like any smart system, they sometimes display error codes when something goes wrong. For property managers, understanding these codes is the fastest way to resolve issues and keep residents happy.

Here are the five most common ButterflyMX error codes — and how to fix them quickly.

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1. Error Code 101 – Network Connection Failed

What It Means: The device cannot connect to the internet.

Fix:

• Check if Wi-Fi or Ethernet is active.
• Test cables and PoE switch for power.
• Assign a static IP to stabilise the connection.
• Restart the router and device.

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2. Error Code 201 – Device Not Registered

What It Means: The device has not been added to the ButterflyMX cloud dashboard.

Fix:

• Log into the ButterflyMX admin dashboard.
• Navigate to Devices → Add Device.
• Enter the device serial number.
• Reboot after registration.

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3. Error Code 305 – Power Supply Issue

What It Means: The device is not receiving enough power.

Fix:

• Ensure you’re using PoE+ (802.3at) instead of basic PoE.
• Test with a different port or injector.
• Inspect the power adapter for proper voltage.

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4. Error Code 402 – Door Unlock Failed

What It Means: The unlock command was sent but the lock didn’t respond.

Fix:

• Check wiring between controller and electric strike/maglock.
• Confirm the lock has power.
• Ensure correct lock type (fail-safe/fail-secure) is selected in settings.

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5. Error Code 503 – Camera or Audio Malfunction

What It Means: The intercom camera or microphone failed to initialise.

Fix:

• Restart the device.
• Clean the lens and mic area.
• Update firmware in the dashboard.
• If unresolved, hardware repair may be required.

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General Troubleshooting Tips

• Always reboot the device before deeper repairs.
• Keep firmware up to date to avoid recurring issues.
• Maintain a log of errors to track patterns.

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Final Thoughts

Error codes may look intimidating, but they’re designed to guide you toward quick fixes. By learning the most common ButterflyMX codes, property managers can restore service quickly without waiting on external support.

For recurring or complex issues, MetroCom Security offers certified ButterflyMX repair services to ensure long-term reliability.