Latest New NVR4XXX-4KS2_MultiLang_V4.001.0000003.1.R.200813

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.
 
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I assume you're currently running older V3 NVR firmware and the question is if the chinese market cameras will still work if you update the NVR to V4 firmware. I have a 5xxx NVR so the answer could be different than for the 4xxx series. I'd think not, but you'd be the one taking the risk, not me. The answer is if the camera has chinese firmware hacked to english, it won't work. If it has the version 2.420.0000.22R build date 2016-12-09 firmware from the dahua mods thread, it will work. The difference is that this is non-chinese firmware hacked to run on a chinese market camera, instead of chinese firmware hacked to speak english.
Dahua Firmware Mod Kit + Modded Dahua Firmware
 
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My current version NVR is v4.000.0000001.5
And the camera version is from 2017
Will update be ok ?
 
Will update be ok ?
If you're asking me, the answer is that I don't know. Only somebody who knows the internals of the new firmware, or has has made the change with your exact configuration can answer for sure. When I went to the V4 NVR firmware I was aware of the possibility of losing half of my cameras. I had a clue from another forum member that I'd probably be ok, but the risk was mine alone.
 
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I downloaded today General version of 17. november English firmware. Does anybody have DH version?

1607437494787.png
 

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