Blackbox NS840 questions & answers

Blackbox NS840 is a professional grade PC-Based 8 channel security DVR system
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Question by Susan
256 views
July 14, 2017

The calendar is not appearing on the screen when I hit Search and Playback, which is where I think you set the time and date? Help, anyone? Thank you!

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Answer by Alex Urbach

I've checked and it appears there is a manual for this device. The manual is in PDF file format and contains everything related to the Blackbox NS840 and its configuration procedure. I recommend you access the link below to visit the Google and then access the PDF file. The file you need is on the 2nd link posted. Click it and the option to save the PDF file will appear.

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Question by Bruce
277 views
October 26, 2016

My system (model NS840) does not boot up because I need a system disk.

Stephen Prastman
Answer by Stephen Prastman

The Blackbox NS840 is actually a computer with its own operating system, and based on the above error I believe it's Windows. This can be fixed by reinstalling the operating system, but first, boot the PC and then enter BIOS to see if the hard drive is still recognized because this can be a hardware failure for one of your components.


I strongly recommend contacting the ones you've acquired the product from because they have all the disks and boot methods to restore the OS.

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Question by michelle
313 views
November 13, 2014

I have a Netrome Writemaster Security Blackbox. I have had it for five years. I just unplugged it, and when I plugged it back in, the screen was blank. I can't get the screen to come back on. What can I do?

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Answer by Sean Hill

This is a surveillance application that enables you to monitor various places through the CCTV cams. If there is no stream detected, access the Settings menu and make sure all the configuration is correct. It's possible that the settings were corrupted, therefore connection is now impossible. My advice is to re-install the application and then configure it again. It should work this way.


As a side note, go to Device Manager and check the network configuration.

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Question by Guest
279 views
June 11, 2014

Forgotten password for Blackbox ns840. How to recover it?

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Answer by Alex Urbach

You need to consult the manual because there is no information about this software and its usage. In many cases, you only have to press a Reset button found on the device, but it's best to check out the manual to see exactly where the problem is located and how it can be fixed.

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