Dahua Password Reset By Serial Number
Dahua Technology is a leading manufacturer of security cameras, recorders (NVRs/DVRs), and intercom systems. Forgetting the administrator password is a common issue that locks users out of their own equipment. Unlike many consumer devices that have a physical reset button, modern Dahua devices often require a password reset procedure involving the device’s serial number.
This guide explains everything you need to know: when the serial number method works, how to obtain the serial number, the step-by-step reset process, the tools involved, security precautions, and alternatives if the serial method fails.
This article focuses primarily on the Serial Number method, which works for almost all Dahua IP cameras, Dahua NVRs, and XVRs.
Dahua provides a free utility called ConfigTool (for Windows) and a mobile app called DMSS (formerly gDMSS/iDMSS) for password resets.
Using ConfigTool (PC):
Using DMSS App (Mobile):
Resetting a Dahua password by serial number is the standard, secure method for modern devices. It is not instant and often requires either a registered email or contacting official support with proof of purchase. The serial number alone does not unlock the device – it serves as the cryptographic key to generate a one-time reset token.
For end users without support contracts, the process can be frustrating. However, community tools exist that reverse-engineer the reset algorithm for non-critical, personal use. Always prioritize the official support channel for commercial installations.
If you lose both the password and the ability to read the serial number (e.g., faded label, no network access), professional repair or device replacement may be the only solution.
Need official help?
Visit Dahua’s official support portal: https://dahuasecurity.com/support
Regional distributors often have faster password reset services – call them with your serial number ready.
To reset a Dahua password using a serial number, you can use one of several methods depending on your device's firmware and whether you have access to technical support or specialized tools. Direct Password Reset via Technical Support
The most common way to use a serial number for a reset is by requesting a temporary code from support. Locate the Serial Number: Find the on the sticker at the back or underside of your recorder.
Note the Date: Check the date displayed on the recorder's login screen (OSD). It must match exactly for the code to work.
Contact Support: Email your serial number and the system date to your regional support, such as Dahua Support USA at support.USA@Dahuatech.com.
Enter Temporary Code: Once you receive the code, enter it in the password field on the login screen to gain access and immediately set a new permanent password. QR Code Method (DMSS App)
Modern Dahua devices display a QR code containing the serial number for a faster self-service reset.
Title: The Midnight Watchman
The rain was hammering against the metal siding of the warehouse, a relentless rhythm that matched the pounding in Elias’s head. It was 2:00 AM, and the security system was down.
Elias, the facility manager, had just replaced a failed hard drive in the NVR (Network Video Recorder). It was a routine fix, or so he thought. But when he powered the unit back up, the familiar "admin" login screen stared back at him with cold indifference.
He typed the password. Incorrect.
He typed the old password. Incorrect.
He tried the default "admin/admin." Incorrect.
Elias leaned back in his chair, the blue light of the monitor casting long shadows. The previous manager had left no notes, and the password reset file he kept on his desktop was corrupted. He was locked out. If the owner called in for a check on the back entrance cameras in the morning, Elias would have nothing to show but a black screen and an apology.
He pulled out his phone and started searching for solutions. Most results pointed to "backdoor exploits" or shady software—things he wasn't willing to risk on a commercial network. Then, he found a legitimate method mentioned in a technician's forum: The Serial Number Method.
It sounded like a lifeline, but the instructions were vague.
Elias pulled a stool up to the server rack. He grabbed a screwdriver and slid the DVR chassis out of the rack. He needed to find the sticker—the physical identity of the machine.
With a flashlight in his teeth, he scanned the bottom of the unit. There, beneath a layer of dust, was a white barcode sticker.
Model: DH-XVR5108HS
S/N: 8J0D8...
He carefully transcribed the alphanumeric string onto a notepad. It was tedious work in the dim light, ensuring he didn't mistake a '0' for an 'O' or an '8' for a 'B'.
Back at the monitor, he opened the login interface. He clicked the "Forgot Password" button (sometimes a key icon, sometimes a question mark). A dialog box popped up: Please input the Serial Number.
Elias typed in the string.
S/N: 8J0D8A...
He hit Confirm.
The screen flickered. Instead of granting access immediately, it presented a new challenge. Because this DVR was running an older firmware version (often V4.0 or earlier), using the serial number was a direct authentication handshake. However, newer devices often generated a "Master Code" or a reset file based on that serial number.
Elias checked the date on the unit. It was an older model. He held his breath.
Access Granted.
The main menu loaded. He didn't waste a second. He navigated to the System Settings, then Account Management. He selected the "admin" user and clicked Modify Password.
He typed in a new, secure password—one he could remember, but strong enough to pass the security audit. He wrote it down on a card and tucked it into his wallet, vowing never to rely on memory alone again.
The Moral of the Story:
Elias solved his problem not by hacking, but by understanding the hardware. The Serial Number Password Reset is a built-in safety feature for many Dahua devices, designed for exactly this scenario. dahua password reset by serial number
How to use the Serial Number Method yourself:
Elias watched the cameras flicker back to life on the screen. The rain was still falling, but the panic had stopped. He had regained control, one serial number at a time.
Locked out of your Dahua DVR, NVR, or IP camera? It happens to the best of us. Whether you’ve inherited a system or simply forgotten a password you haven’t used in months, using the device’s Serial Number (S/N) is one of the most reliable ways to regain access.
This guide walks you through the step-by-step process of resetting your Dahua password using the serial number and other modern tools. Step 1: Locate Your Serial Number
Before you can start the reset, you need the unique identifier for your hardware. You can find the Dahua serial number in a few ways:
Physical Label: Look for a sticker on the bottom or back of your DVR/NVR or the body of your IP camera. It is typically labeled as S/N or SN.
Login Interface: On many modern Dahua devices, clicking "Forgot Password" on the login screen will display the serial number along with a QR code.
ConfigTool: If your device is on the network, the Dahua ConfigTool will automatically detect and list the serial number for all connected devices. Step 2: Choose Your Reset Method
Depending on your model and region, there are two primary ways to use your serial number for a reset: Method A: Contacting Technical Support (Official Way)
For many older or enterprise models, you must provide your serial number to Dahua support to receive a one-time temporary password.
Note the Date: Write down the current date and time exactly as shown on the device's On-Screen Display (OSD).
Email Support: Send an email to Support.USA@Dahuatech.com (or your local regional support) with the full serial number and the date shown on the OSD.
Receive Code: Support will typically send a temporary security code within 24–48 hours.
Log In: Enter this code into the password field on the device. Once logged in, immediately go to Main Menu → Account to set a new permanent password. Method B: Using the DMSS Mobile App (Quickest Way)
If your device is relatively new and has a "Forgot Password" QR code, you can reset it instantly using the DMSS App on your phone.
Open DMSS: Navigate to the Me tab, then select Tool Manager > Device Password Management (or Password Resetting).
Scan the QR Code: Use your phone to scan the QR code displayed on the DVR/NVR monitor.
Check Your Email: A security code will be sent to the reserved email address you linked during the initial setup.
Enter Code: Input the code on your recorder’s screen to unlock it and create a new password. Alternative: The XML File Method (ConfigTool)
If the serial number method isn't working for your specific IP camera, the Dahua ConfigTool is your best bet: Open ConfigTool on a PC connected to the same network. Go to the Password Reset section and find your device. Click Reset and select the XML File mode.
Export the XML file and email it to Dahua support. They will send back a "Result" file.
Import that Result file back into the ConfigTool to unlock the camera. Pro-Tips to Avoid Future Lockouts FAQ/Password Reset Instructions - DahuaWiki
To reset a Dahua password using a serial number (S/N), you typically need to Dahua Technical Support
or an authorized dealer to receive a temporary security code
. This method is often used for older models or as a backup when newer methods like QR code scanning are not configured. Method 1: Emailing Dahua Support (Serial Number Method)
This is the standard procedure for obtaining a manual reset code based on your device's unique S/N. Locate the Serial Number (S/N)
Find it on the physical sticker on the bottom or back of the recorder. Alternatively, go to the login screen and click "Forgot Password" ; the S/N may be displayed there along with a QR code. Contact Support Email your full serial number model number current date/time
shown on the device's On-Screen Display (OSD) to the appropriate regional support email (e.g., Support.USA@Dahuatech.com for North America or support@dahuasecurity.com for global support). Apply the Security Code
Once you receive the temporary code from support, right-click the monitor screen and select Enter the received code into the password field. System > Account and modify the admin password immediately. Recovery Squad Alternative Modern Reset Methods
If your device is newer (roughly 2019 onwards), you can often perform a reset yourself without waiting for an email from support. How To Reset Dahua DVR/NVR Password - Recovery Squad
How to Perform a Dahua Password Reset by Serial Number Forgetting the password to your Dahua DVR, NVR, or IP camera can be a major headache, especially when you need to access critical footage. Fortunately, one of the most reliable ways to regain access is by using the device's serial number.
This guide covers the step-by-step process of resetting your Dahua password using the serial number method, along with alternative solutions if you get stuck. What You’ll Need Before You Start To use the serial number method, you must have: Physical access to the recorder or camera.
The Serial Number (S/N): Found on the sticker on the bottom/side of the device or via the ConfigTool software.
The Current Date: The date shown on the monitor connected to your Dahua device (this is crucial as the reset code is often date-dependent). Method 1: Using the DMSS Mobile App (Easiest)
Dahua has integrated a "Forgot Password" feature into their mobile app, DMSS (available on iOS and Android). Dahua Technology is a leading manufacturer of security
Open the Login Screen: On your DVR/NVR monitor, click the "Forgot Password" icon next to the login field.
Select Reset Mode: Choose "SN" or "QR Code" reset. A QR code will appear on the screen. Scan with DMSS: Open the DMSS app on your phone. Go to Home > Me > Toolbox > Device Password Reset. Scan the QR code on your monitor.
Receive Security Code: After scanning, a security code will be sent to the email address linked during the initial setup.
Enter Code: Type the code into the "Security Code" box on your DVR/NVR and create a new password. Method 2: Generating a Master Password via Serial Number
If your device is older and doesn't support QR codes, you may need a "Master Password" generated from the Serial Number and the device's system date. 1. Locate your Serial Number
If the sticker is missing, download the Dahua ConfigTool on your PC. As long as your computer is on the same network as the camera/DVR, the tool will display the Serial Number. 2. Contact Technical Support or Use a Reset Tool
Dahua does not publicize their master-key algorithm for security reasons. To get the reset code:
Contact your Vendor: Send your S/N and the current date (as displayed on the DVR) to the person or company who sold you the equipment.
Dahua Support: Reach out to official Dahua regional support.
CCTV Calculators: Some third-party websites offer "Dahua Password Generators." Use these with caution, as they only work for older firmware versions. Method 3: The Hard Reset (Physical Button)
If you cannot find the serial number or the email reset fails, many Dahua IP cameras and some newer NVRs have a physical reset button.
Locate the Button: On IP cameras, it’s often near the SD card slot. On NVR motherboards, it is a small button labeled "Reset." The Process: Disconnect power. Hold the reset button.
Reconnect power while continuing to hold the button for 20–30 seconds.
The device will revert to factory settings (default username/password is usually admin/admin or will prompt for a new one). Important Tips for the Future
Link an Email: Always link a recovery email during the initial setup to make the DMSS reset process instantaneous.
Export Config Files: Use the ConfigTool to export your system configuration. If you ever reset, you can import your settings back quickly.
Keep Firmware Updated: Newer firmware versions offer better security and more user-friendly recovery options.
Note: If your device was provided by a specific service provider (like a security firm), their custom firmware might disable these reset methods. In that case, you must contact them directly for an unlock code.
To reset a Dahua password using the serial number, you can either use a Super Password Generator application or contact Dahua Support How to Find Your Serial Number
Before starting, you must locate the device's serial number (S/N): Physical Sticker
: Look for a label on the underside or rear of the recorder. Login Screen
: On modern firmware, click "Forgot Password" to display the S/N and a QR code. Dahua ConfigTool or SmartPSS on a connected PC to view device information. Method 1: Using a Super Password Generator This method uses third-party apps like the CCTV Super Password tool to create a temporary login code based on your S/N. Recovery Squad Download the Tool : Install a reputable app like CCTV Super Password on your phone or PC. Input Data
: Select your DVR/NVR model and enter the full serial number exactly as shown (case-sensitive). : The tool will provide one or more temporary passwords. : Use the username
and enter the generated code. If successful, immediately go to Main Menu > Account > User to set a new permanent password. Recovery Squad Method 2: Contacting Dahua Technical Support
If the generator fails, you must request a reset code from official support. Dahua Wiki Note the Date
: Check the date currently shown on your recorder's on-screen display (OSD). It must match exactly for the code to work. Send an Email
: Email your full serial number and the current OSD date to your regional support, such as Support.USA@Dahuatech.com support@dahuasecurity.com Receive Code
: Support typically responds within 24–48 hours with a security code. Enter Code : Right-click on your device, select , and enter the provided code in the password field. : Once logged in, navigate to the
settings and use the code as the "Old Password" to create your new one. Dahua Wiki Alternative: QR Code Reset (Newer Models)
If your device shows a QR code on the "Forgot Password" screen, this is the fastest method: Dahua DMSS app on your smartphone. Me > Tool Case > Device Password Reset
Scan the QR code on the monitor. A security code will be sent to the recovery email address linked to the device. direct download links
for the official Dahua configuration tools to help find your serial number? FAQ/Password Reset Instructions - DahuaWiki 10 Apr 2024 —
Unlocking Your Security Camera Without Losing Footage
In the world of professional security surveillance, Dahua Technology stands as a titan. Their cameras and Network Video Recorders (NVRs) are renowned for durability and image quality. However, there is one universal frustration that connects administrators from small business owners to large-scale facility managers: the forgotten password.
If you are staring at a “User Name or Password Error” message on a Dahua device, you are not alone. The most common solution searched for online today is the Dahua password reset by serial number. This article focuses primarily on the Serial Number
This guide will walk you through exactly what that means, why the serial number is your golden key, the legitimate step-by-step reset process, and critical security warnings you must know before you begin.
Once you reset your password using the serial number method, avoid doing it again:
Resetting a Dahua device by serial number is a secure, official process that prevents unauthorized access while allowing legitimate owners to regain control. Always use Dahua’s ConfigTool or SSP portal – never unofficial “reset generators.” If the serial-number method fails, contact Dahua Technical Support with proof of purchase.
Unlocking Your Security: Dahua Password Reset by Serial Number
Forgetting the admin password to your Dahua NVR, DVR, or IP camera can feel like being locked out of your own home. While modern systems often use QR codes, many older or specific models still rely on the Serial Number (S/N) method to regain access. When to Use the Serial Number Method
This method is typically a "last resort" or used for older firmware versions (pre-4.0) that do not support the automated QR code/DMSS app reset. Step-by-Step Guide: Resetting via Serial Number
Follow these steps to generate a temporary password or reset code through official Dahua channels:
Locate Your Serial Number: Check the physical sticker on the back or bottom of your recorder/camera. You can also find it via the Dahua Config Tool if the device is reachable on your network.
Note the Device Date: Power on your device and look at the On-Screen Display (OSD). The exact system date (Year, Month, Day) is often required alongside the S/N to generate a valid code.
Contact Technical Support: Email your full serial number and the current system date to official support. For North American users, the address is typically Support.USA@Dahuatech.com.
Tip: Include your model number and a photo of the S/N sticker to speed up the process.
Enter the Reset Code: Once you receive the temporary code (usually within 24–48 hours), go to the login screen on your device. Enter the code in the password field.
If successful, you will be prompted to create a new, secure password immediately. Alternative Reset Methods
If the serial number method isn't working for your specific model, consider these faster alternatives:
QR Code & DMSS App: The most common method for modern Dahua devices. Use the DMSS app to scan the "Forgot Password" QR code on your monitor to receive a security code via email.
Dahua Config Tool (XML Reset): For IP cameras, use the Config Tool to export an XML file, email it to support, and import the result file they send back.
Physical Reset Button: Many IP cameras and some NVRs have a physical button inside the housing. Pressing and holding this while powering on the device will factory reset the unit.
Security Questions: If you set these up during initial configuration, you can reset the password instantly by answering them on the login screen. Quick Reference Table
Dahua Password Reset by Serial Number:
Dahua Technologies, a leading manufacturer of surveillance equipment, provides a password reset mechanism for their devices using the serial number. This method allows users to regain access to their device if they've forgotten the password.
The Process:
To reset the password using the serial number, follow these steps:
Additional Information:
Security Considerations:
Troubleshooting:
If you encounter issues during the password reset process, you can:
Keep in mind that Dahua's password reset process may have changed over time, so it's always a good idea to check the official Dahua website for the latest information.
Was this information helpful? Do you have any specific questions or concerns regarding Dahua password reset by serial number?
To reset a Dahua password using the serial number, you must obtain a temporary security code by emailing the number to Dahua support or your authorized distributor.
Due to security hardening upgrades, modern Dahua devices no longer use generic master passwords based on the date and serial number.
🛠️ Method 1: Emailing the Serial Number (Official Support)
This method is used when the device is not connected to the internet to perform a QR code reset.
Find your serial number: Look at the sticker on the bottom/back of your NVR, DVR, or camera, or locate it via the Dahua ConfigTool.
Note the exact date: Turn on your recorder and write down the exact system date displayed on the monitor screen.
Contact Support: Email your full device serial number and the current on-screen date to Dahua Support or your authorized local dealer.
Apply the code: Once you receive a temporary secure code, go to the device login screen, enter the code in the password field, and immediately create a new administrator password. 📱 Method 2: The QR Code Reset (Recommended)
If you previously bound an email address to your admin account during the initial setup, you can reset the password instantly using the mobile app. FAQ/Password Reset Instructions - DahuaWiki
