You can add the device by scanning the device's QR code. You can also add
        device(s) by scanning the QR code obtained via Guarding Vision client software, iVMS-4500 mobile client,
        or the web page of the device.
                
Note: 
                    
                        - 
                            For details about obtaining QR code via Guarding
                                    Vision
                                client software, iVMS-4500 mobile client, or the web page of the
                                device, see the user manual of Guarding
                                    Vision
                                client software, iVMS-4500 mobile client, or the device respectively
                                for details. 
- 
                            If adding an access control device, you should activate
                                the device and set the device network information via other clients
                                (e.g., Guarding Vision client software)
                                before adding it to the Mobile Client. 
 
            - 
                On the device list page, tap  to enter the Scan QR Code page.
            
- 
                Scan the QR code. 
                
                    - 
                        Scan the QR code by aligning the QR Code with the scanning
                            frame. Note: 
                            
                                - 
                                    Usually, the device QR code is printed on the
                                        label, which is on the back cover of the device. 
- 
                                    Tap  to enable
                                        the flashlight if the scanning environment is too dark. to enable
                                        the flashlight if the scanning environment is too dark.
 
 
 
- 
                        If there are QR codes in photo album of the phone, tap  to extract QR code from
                            local album. to extract QR code from
                            local album.
 
 
- Optional: 
                Perform the following operations if the following situations occur.
                
            
- 
                Tap Add on the Result page.
            
- 
                Enter the device verification code.
                
                    The device will be added successfully. Note: 
                        
                            - 
                                The default device verification code is usually on
                                    the device label. If no verification code found, enter the
                                    device verification code you created when enabling Guarding Vision service. 
- 
                                For details about enabling Guarding Vision service, see Enable Guarding Vision Service for Device.  
 
 
 
- Optional: 
                Tap Configure DDNS to configure DDNS.
                
                    Note: 
                        
                            - 
                                See Set DDNS for details. 
- 
                                After DDNS being enabled, the device will be accessed
                                    via IP address in priority, so that remote configuration of the
                                    device will be supported and the streaming speed will be faster
                                    than streaming via   Guarding
                                        Vision
                                    service. 
- 
                                If you skip this step, the device will be accessed
                                    via Guarding Vision service. 
 
 
 
- 
                Tap Finish.
            
- Optional: 
                Delete the device.
                
                    - 
                        On the device list, if the list is in list mode, swipe the
                            device name to the left and tap . 
- 
                        On the device list, if the list is in thumbnail mode, tap the
                            device name or tap  , and then tap
                                Delete Device. , and then tap
                                Delete Device.