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Oh, OK Download But I do not recommend to use this old NVR as online system, it has more holes than Swiss cheese in it, while it is so outdated.

You might be locked out after 3-4 unsuccess's, but reboot will reset that counter and You can keep trying. I meant when you have display and mouse connected directly to your NVR.

NVR4208-8P-I is a relatively new model. Your local Dahua representer (I know there are several in Belgium) should be able to help you with no time. Have you tried login with pattern from console. Usually patterns are easy to discover and from there is very easy to reset the whole thing.

You might wanna look to here: ASM.CZ

Hi @kukita Firmware 2.616.0000 indicates that it is indeed a very, very old NVR, Should not be used in network while full on security holes. Anyhow, I think your problem might be this little thing that This NVR supports only old h264 video codec, and Your cameras are most likely set as h265...

Hi Dahua video network security question. I have a task to hide Ip cameras in the network. Currently I have a network where cameras get their IP address from dhcp static list and no other foreign device gets IP address. But still if "tresspasser" connects with static IP of without IP...

Excellent, this is exactly what I need. Appreciated.

Hi Now is my turn to ask advice in a issue, that I have never bounced into before. I need to push custom text string in to "Text Overlay" field in Camera OSD area of Dahua Camera. Lets say this Camera is a HFW3841T-ZAS. I know this is possible, but I do not know, how. Has anyone dealt with...

S sure it does, you just have to do all the other tricks too, just like in good old days with IE.

You guys are overthinking. Edge browser has Internet Explorer mode (see the three dots menu and Reload in Internet Explorer mode). So far works like charm.

I can help you with that, gentlemen. Link

This is not the firmware issue, you have totally too high bitrate combined to all cameras. Try to lower bitrates about 5% and you will see how your problem solves.

I have firmware, that i have marked as for SD6980C-HN, but take it as own risk, compatibility list inside says it is ok. General_SD-Brynhil_Eng_P_V2.213.0000.0.R.20131127 https://www.dropbox.com/s/g4euutcoyldxmut/SD6980C-HN.zip?dl=0

This is a EOL product and has no V4 firmware ever done for it. Sorry. But latest version for that recorder is DH_HCVR5x16-S3_Eng_P_V3.218.0000002.5.R.190301, you seem to have it already.

Latest for that is DH_NVR4XXX-4KS2_MultiLang_V4.001.0000005.1.R.210713

Just to keep you updated, latest is DH_NVR5XXX-4KS2_MultiLang_V4.002.0000000.1.R.211231

@Rascal First, what version of firmware are you running in that NVR? Second, usual SmartPSS will do just fine mostly, sometimes you have to choose right version number.

NVR6XX-4KS2 models require total factory reset before and after V4 upgrade, HDD reformat is not required. Latest public FW so far is NVR6XX-4KS2_MultiLang_V4.001.0000001.1.R.200812, and works OK

There You go https://www.dropbox.com/s/y4masuv5kkqhb7u/DH_NVR7xxx_Eng_P_V3_200_0000_1_R_20171122.zip?dl=0 But please note -this has some mayor security bugfixes it. It supports onvif, P2P Do not make changes in device list thru smartpss, it clears the list and you have to readd devices thru...

I downgraded today to August version, went just fine

Wwhat was your previous version? What was your previous version number?

First: yes you can roll back, i did it today with one nvr that had compatibility issue with one very old Dahua PTZ camera. Other issues might be solved if you do "factory default" reset to this unit and set it up again.

Release notes DH_NVR5XXX-4KS2_MultiLang_V4.002.0000000.1.R.211231.bin

There you go

I have hundreds of those NVR5xxx-4KS2's in maintenance with different version numbers, and i have barely never bricked anything. I have some, but this was not because firmware. Latest FW is anyway with date 211231, runs on every version so far just fine. @mally You need full upgrade folder...

Yes it works, but be careful: IPC-HFW4431R-Z is chinese home market model and not supported outside. It has always-on p2p, and for some reason it sends out jpg files to alibaba servers. It also does not support all time zones (DST). I have stepped into this bucket, therefore i know. You better...

Strange, the new update file is 1/6 bigger than previous one. There must be a lot more than two check boxes added.

Now you got my attention, From where did you have such a release, and can you share it with me please. I have literally hundreds of dahua firmware files but no such. As the gap between previous release is so small, it might be a somebodys custom firmware with some "personality" issues. Can I...

Folder structure is actually pretty logical, no problem there, if you have small project to do with that, try file renameing with irfanview patch mode, that can sort and rename every phpto into one folder with timestamp in name for example.

Would you try so: First, this a series 1 camera, it means the cpu is weakest in the line, get rid of the Event and Alarm in ftp at start. Then disable motion at all in this camera, if possible, this too releases some cpu resources. Otherwise looks ok. There might be an issue with firmware too...