2. Configure Email sending and receiving. Follow the instructions below to set up Email to send and Email to receive alerts: First, open the email interface, Step 1, 2, 3. Step 4: Input Server Email and connection information. Step 5: Select encryption protocol and email header. Step 6: Enter email account information. Link to Download SmartPSS for Mac Version: 1.11.1 from DahuaSecurity.com. SmartPSS Manual. Install SmartPSS. Add DVR/NVR to SmartPSS (IP) Add DVR/NVR to SmartPSS (P2P) Add IP Camera to SmartPSS. SmartPSS Playback. SmartPSS Backup. Download Video from SD-Card. When working with Dahua on that issue, they stopped responding so I had to just disclose it. I told myself I'd never poke a hole through my firewall to a DVR again. Earlier this year another researcher published another means of gaining unauthorized access to Dahua DVRs but this one used their janky web interface on HTTP/80. Default or To factory reset the device, hold the reset button down and unplug the NVR from power. Once power is removed from the unit, continue holding the factory reset switch for 4 - 5 seconds, continue holding the reset switch and plug the power supply back into the unit. You should hear a beep if not that is alright. Page 16 HDCVI Series DVR User’s Manual Parameters HCVR5104C-V2 HCVR5108C-V2 Resolution Video Frame PAL:1~25f/s；NTSC：1~30f/s Rate Video Frame 1536Kbps-4096Kbps， Rate For 720P: default setup is 2Mbps，max supports 4Mbps Bit Stream Type Video stream/composite stream Dual-Stream Support Audio Encode G.711A/G.711U/PCM Parameters Standard DHI-XVR-4108HS – 8 Channel Penta-brid HD Digital Video Recorder. DHI-XVR-4108HS Support HDCVI/CVBS/HDTVI/AHD video inputs. >Max 5/10/18 channels IP camera inputs,each channel up to 5MP (2MP for 4ch) >Max 20/40/72Mbps Incoming Bandwidth. >Long transmission distance over coax cable. Now to boot up your DVR, follow below steps: Make sure that you have a Monitor, a Mouse and a HDMI cable to connect from DVR to Monitor. Connect your Dahua DVR to Monitor and then connect Mouse to it. Now connect Power cable to the DVR and power it ON. Press Power button on DVR for 3 sec and release it, now your DVR will boot up. Vossy said: The model is DHI-NVR5208-8P-4KS2. This may not be the exact same model - but some years ago I fixed up a Dahua NVR with hwid HWID=NVR5208_SINGLE for a forum member. It had the wrong firmware installed, so various bootloader variables were wrong, giving a bootloop. But looking at my notes - the device had a DB9 RS232 interface that c3ce195.