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You are perfectly right! I think quite the same. Unfortunately I upgraded just because my old fw was loosing some video configuration at any reboot... Anyway, I sent a feedback to Dahua (thru cam dealer) and I hope something will be fixed in the future. In the while I will continue to test IVS...

Recently I update the fw on two cameras (IPC-HFW3241E-SA) placed on different position: one is looking on a courtyardplaceed at about 5 mt height, while the other one is looking on a narrow lane, placed on a wall at 6 mt height. Of course, before the upgrade, Algorithm Version was 1.0.0 (you can...

Thank for the info. Anyway I buy all my Dahua cams from an authorized dealer so I never experienced any trouble in fw upgrade (of course I use only fw from Dahua intrnational website). So I upgraded to the last official fw this morning and all seems to work fine. Now 'Algorithm Version' has...

Yes, I have a 128GB SD mounted, but is almost empty (380 MB used). I think would be better to upgrade since the current fw is pretty old (V2.800.0000000.21 is available)

Thanks for your info. Anyway this is not my case. I bought this camera last June (2020) and it has been working since then. Yesterday, during a periodic reboot that I do for maintenance, the red triangle appeared... Today I tested the IVS function and it works perfectly, so I went to camera web...

Recently I got this warning on my IPC-HFW3241E-SA. Anybody knows the reason and how can I fix it? Thanks.

As I wrote, Dahua support told me you CANNOT downgrade from V4 to V3 in the user way...

I have a NVR4208-4KS2 (200 Mbps BW). Since the hw is the same as NVR4216-4KS2, is there any (legal) way to upgrade to 16 channels? Maybe buying some license from Dahua or something like that? Now I need a total of 9 cams and I should dismiss my 1 year old 8ch and buy a 16ch with identical hw...

Switched back fro 4.xx to 3.xx?? Very strange. Dahua support told me this was not possible..

I had the same problem in a previous upgrade. I suppose you are talking about browser interface, so try from another browser and/or pc. Then, if this works, try to clean cookies or some other information in your browser (I performed some browser clean up before I fixed the problem).

I think it will be officially available in few days...

Yes, of course! I just think this mean that a new version is coming soon...

Of course, I think MultiLang will be released later but I don't know how much later... Dahua FW policy is very strange. Many other companies release localized FW at the same time. Maybe they prefer to test new releases on country market first.

Great news coming soon! From Dahua China site: V4.001.0000005.0.R.201117 Released today.

I hope a new version will be available soon. This one has a lot of bugs. The last one I experienced is related to snapshots. I have up to 7 cams (all from Dahua) configured for event video and scheduled snapshot (Camera->Encode->Snapshot). Well, the 'interval' param has no effect (some cam...

UPDATE: I did some other tests. IVS is working but is much less sensitive. So much that is seems not working. Anyone knows if it is possible to rollback the firmware?

Is correct?

Finally I got a new firmware (DH_IPC-HX5XXX-Volt_MultiLang_PN_Stream3_V2.800.0000000.19.R.200709 ). All is fine but IVS is no more working at all. I tried in many way, also resetting the cam to factory default, but noting IVS (tripwire) is not working. No event is triggered crossing tripwire...

He told me he does not have a version newer than the one I have... I don't understand the Dahua policy of firmware distribution. Also the problem 'if you load a wrong fw you will brick the camera' is very strange for me. I worked a lot of years in embedded device firmware development and the...

My reseller says to use only fw you can find on the official camera web page. Furthermore he says that a wrong fw can brick the camera and the warranty is lost. I already contacted Dahua china HD but I don't have yet any answer from them. On the other hand, anyone knows Index of / website? Here...

Does anybody knows if is there a firmware newer than DH_IPC-HX4XXX-Volt_MultiLang_PN_Stream3_V2.800.0000000.1.R.190706 ? I've found DH_IPC-HX5XXX-Volt_MultiLang_PN_Stream3_V2.800.0000000.19.R.200709 but in its compatibility list HFW5241E-S camera is not listed. Could it be used?

I don't like this version... It seems to be less stable than the previous one. Sometime it crashes (I used DH_NVR4XXX-4KS2_MultiLang_V4.001.0000003.0.R.200727 for about two months with no crashes), snapshot records don't work perfectly and some other little problems. Does anyone knows if it is...

I still have all the previous problems (I did not test yet the system crash when accessing tag list from web). Apparently no relevant changes from previous version.

Can this fw be used with IPC-HFW5241E-S ?

Very strange. Today I can access web service on both IE and Chrome and can see all cameras in Live and Search. It seems to work fine but, in Search mode, if I have same tag set and go in 'Tag Management' to search tags, NVR crashes (flag 0x01[0x6f]). The same happens if I have a tag on a given...

I reboot the NVR. Next IE asked me to load nvr plugin again. I load it but is still the same. Furthermore, also in 'search' page I cannot see any camera, while in setting I can see the full camera list and I can see camera's image in camera setting. Very strange... Of course with NVR V3 I never...

I tried in IE but it didn't work.

I'm running V4.001.0000003.0.R.200727 from about 2 weeks. Today I try to access NVR from Web Service but I wasn't able to see cameras from live page. There is no camera list to select the view... Someone knows what is wrong with my web services? Attached a screenshot of live page.

I just upgraded to V4.001.0000003.0 you can find here (Dahua France). Some problem as previous V4.001.000000.0000000.4 but there is an interesting new function: 'Disarm by period' if you need a scheduled alarm disarming...

I think you cannot downgrade from v3 to v4 in the usual way. What was the V4 did you upgrade? Only V4.001.0000000.4.R.200707 did work in an acceptable way on my DHI-NVR4208-4KS2. Verify if this version is compatible with your device.