West Protect · Help & Support

Help with your security system.

Find everyday instructions, the right manufacturer manual or help with a fault. Start with the task you want to complete.

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Using your system

What would you like help with?

Choose a guide, then open the task you need. Instructions and screen examples stay together. Controls vary by model, software and permissions.

Live cameras, recordings, sharing and notifications

On your phone

Get comfortable with DMSS

DMSS is Dahua’s phone app for live cameras, saved footage and supported alerts. Use your own account. Menus and available controls depend on your equipment, app version and permissions.

DMSS app screen examples
DMSS app guide

What would you like to do?

Choose a task below for instructions and screen examples.

Manufacturer screen examples. Your app may look different.

DMSS manufacturer example: live camera view; open full-size image
Live view
DMSS manufacturer example: recording playback; open full-size image
Saved footage
Find and save a recordingLocate the right camera and time, then export a copy.
  1. Open Playback

    Choose the relevant camera and recording date.

  2. Find the time

    Use the timeline to locate the event. If nothing appears, confirm the camera, date and recording filter.

  3. Play the footage

    Play the section first and confirm it is the correct camera and time period.

  4. Save and check a copy

    If your version offers a clip or download option, select the period to save. Wait until it finishes, then open the exported file and check playback.

Export important footage as soon as possible and store it securely away from the recorder. Older recordings can be overwritten.

Show screen example
DMSS Playback: select a date and time
DMSS Playback: select a date and timeTap the image to enlarge

Manufacturer illustration, not a screenshot of your system. Controls vary by app version, equipment and permissions.

Using an older DMSS layout?

These earlier screen examples show similar controls in different positions. They are reference images, not the next steps in the sequence above.

Show screen examples
Earlier DMSS: calendar and recording filters
Earlier DMSS: calendar and recording filtersTap the image to enlarge
Earlier DMSS: playback timeline and controls
Earlier DMSS: playback timeline and controlsTap the image to enlarge

Earlier DMSS interface examples. Match the instructions to the version on your phone.

View your cameras liveCheck the current image from a connected camera.
  1. Sign in to DMSS

    Sign in with your own credentials and keep recovery codes private. Your recorder login may be different from your DMSS account.

  2. Select your system

    Find the recorder or device in Home or the device list. If it is missing, check which account is signed in before attempting to add it again.

  3. Open a camera

    Select a camera and confirm the image is live. Audio, zoom and movement controls are available only where the equipment and your permissions allow them.

To confirm recording, open Playback and play a saved clip. Live view checks only the current picture.

Show screen examples
DMSS Home: select your recorder
DMSS Home: select your recorderTap the image to enlarge
DMSS Live View: view a camera
DMSS Live View: view a cameraTap the image to enlarge

Manufacturer illustration, not a screenshot of your system. Controls vary by app version, equipment and permissions.

Add a family member or another userShare access through their own account and choose their permissions.
  1. Ask them to create an account

    Ask the person to install DMSS and create their own account, then confirm the recipient details.

  2. Open Device Sharing

    For a device that supports account sharing, open Device Sharing and enter the recipient’s account. If sharing is unavailable, ask for help instead of giving out the administrator password.

  3. Choose their permissions

    Select only the required cameras and optional permissions. Some sharing arrangements include live view that cannot be switched off. Check the recipient and full permission list before confirming, and ask us if the access is broader than intended.

  4. Check their access

    Have the recipient open their account and accept any invitation. Check the intended functions together, and review or revoke sharing when their access is no longer needed.

Show screen example
Earlier DMSS interface: Device Sharing and permissions
Earlier DMSS interface: Device Sharing and permissionsTap the image to enlarge

Manufacturer illustration, not a screenshot of your system. Controls vary by app version, equipment and permissions.

Check your notificationsCheck the settings and test an alert you already use.
  1. Allow phone notifications

    Allow DMSS notifications in your phone settings. Also check Focus, Do Not Disturb and battery restrictions.

  2. Check the device’s alert settings

    Confirm the relevant device alerts are enabled and that the phone and security system are online.

  3. Test a configured event

    Safely test a configured event, then check the notification and Event or Message list in DMSS. Confirm the associated recording separately in Playback.

If the test fails, tell us the phone type, DMSS version and device involved.

Show screen example
DMSS Event: review device messages
DMSS Event: review device messagesTap the image to enlarge

Manufacturer illustration, not a screenshot of your system. Controls vary by app version, equipment and permissions.

Manufacturer reference library

Find your model manual.

Enter the model on your device label or handover documents. Open a result to see its official document links. Match the complete model suffix and software version.

Filter by equipment or package

18 document entries shown.

Intercoms · User manual7-inch Video Intercom MonitorVTH5422HB · VTH5422HW

Digital VTH (Version 4.8.1) User Manual · V1.0.1

For the VTH5422H monitor family. B/W colour suffixes and the installed firmware affect the interface and available functions.

Official user manual (PDF) for VTH5422HB, VTH5422HW — opens in a new tab↗Video Door Phone (Version 4.8.1) Quick Start Guide (PDF) · V1.0.2 for VTH5422HB, VTH5422HW — opens in a new tab↗Manufacturer product and downloads for VTH5422HB, VTH5422HW — opens in a new tab↗

CCTV recorder and camera models, and the included PoE switch model, vary by installation. Ask for the exact manual with the model from your device label. Keep passwords, serial numbers, QR codes and recovery codes private. Leave wiring, firmware changes, resets and specialist servicing to the appropriate installer.

Official manufacturer links checked 9 October 2026. Links and available versions can change. A datasheet, quick-start guide and user manual are labelled separately.

Need help with your system?

Tell us the affected device and describe the problem. Keep passwords and recovery codes private.

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