Dahua Password Reset By Serial Number

The tool will now generate an "Export File" (usually a .txt or .xml file) or a 24-character Security Code. Save this file to your desktop.

Unlike older, less secure devices that have a “factory reset” pinhole that wipes everything instantly, modern Dahua devices (particularly those running firmware post-2020) have adopted a Secure Password Recovery Protocol.

The serial number (SN) acts as the device’s unique fingerprint. When you request a reset, Dahua’s security algorithm generates a time-sensitive reset code based on that SN and the current timestamp. This prevents a thief from simply pressing a button to bypass the password and stealing your footage.

Launch ConfigTool. It will automatically scan your local subnet. You will see a list of all Dahua devices. Locate your locked device—it will be marked with a red padlock icon or show "Status: Locked."

If you cannot obtain a valid serial number reset code (e.g., you bought a used camera on eBay with no invoice), your only option is a full firmware re-flash.

This erases 100% of settings, including the password.

Warning: This requires intermediate networking knowledge and will void warranties.

| Error | Cause | Solution | |-------|-------|----------| | “Serial number mismatch” | You entered the wrong S/N or device was tampered with | Re-check label; try scanning QR code on device. | | “Reset code invalid” | The generated code doesn’t match timestamp or device’s internal clock | Sync device time via NTP before reset attempt. | | “Security code expired” | Some devices generate a code valid for only 300 seconds | Repeat the process faster. | | “Email not registered” | No email was ever set in device | Must use serial + support ticket method. | | “Firmware too old” | Pre-2015 firmware may lock out permanently | Need physical reset or firmware reflash. |

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.

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. dahua password reset by serial number

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. The tool will now generate an "Export File" (usually a

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 the serial number, you must obtain a temporary security code from Dahua support. This process typically applies to recorders (NVR/DVR) and cameras where other recovery options (like email or QR codes) are unavailable. Password Reset Procedure via Serial Number

Locate Device Information: Find the full device serial number and the current date/time displayed on the device's screen (OSD). The serial number is usually on a sticker on the back or bottom of the hardware.

Contact Support: Email the serial number and the current device date to the official Dahua Support Team at Support.USA@Dahuatech.com (or your regional equivalent) to request a reset code.

Enter Security Code: Once you receive the code, right-click on the device interface and select Main Menu. Enter the provided security code into the Admin Account password field to unlock the system. Set New Password: Navigate to System > Account (or Settings > Account). Select Modify for the 'admin' user. Check the Modify Password box.

Use the support-provided code as the "Old Password" and then enter your new desired password twice. Alternative Reset Methods

If the serial number method is not feasible, consider these alternatives:

QR Code Reset: If you previously configured a recovery email, click "Forgot Password" on the login screen to generate a QR code. Scan this with the DMSS mobile app to receive a reset code via email.

Physical Reset Button: Many Dahua IP cameras have a physical reset button located near the Ethernet port or under a waterproof cover. Press and hold it for 5-10 seconds while the device is powered on to factory reset the password. Resetting a Dahua device by serial number is

Default Credentials: For older models, try the default username admin with the password admin or leave the password field blank.

To reset a Dahua password using a serial number (S/N), you generally need to obtain a temporary security code from Dahua support or use an authorized password generator. Method 1: Dahua Support (Official)

This is the standard procedure for recorders (DVR/NVR) and cameras:

Locate the Serial Number: Find the S/N on the physical sticker at the back/bottom of your device or by clicking the "Forgot Password" link on the login screen.

Note the Date: Take note of the current date and time displayed on the device's screen (OSD), as the security code is date-dependent.

Contact Support: Email the full serial number and the current OSD date to Support.USA@Dahuatech.com or your local regional support.

Enter Temporary Code: Once received, enter the code into the Admin Account field on the device.

Modify Password: Go to Main Menu > System > Account > Modify to set a new permanent password immediately. Method 2: Super Password Generator (Third-Party)

Some users use external tools to generate "Daily Passwords" based on the serial number:

Download Tool: Tools like the CCTV Super Password app (available for Windows/Android) can generate candidate codes.

Generate Code: Enter your serial number exactly as it appears (it is case-sensitive) into the tool.

Test Codes: Try the generated codes (sometimes there are up to five) with the username admin. Method 3: QR Code & DMSS App (Alternative to S/N Only)

If your device shows a QR code on the "Forgot Password" screen, this is often faster than a manual serial number request: Open the DMSS App on your phone. Navigate to Me > Tool Manager > Password Resetting. Scan the QR code on your DVR/NVR monitor.

A security code will be sent to the recovery email address associated with the account. Enter that code on your device to reset the password. Important Tips: FAQ/Password Reset Instructions - DahuaWiki