Dahua NVR firmware update

Microboot said:
Thank you, I'll give this a try and hopefully this will fix it :)

Thanks
Michaelk
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Unfortunately, the upgrade failed again, so I factory reset it, ran through the setup wizard and it failed yet again. I don't know what else to try, so any ideas? I've tried all three upgrade methods (web, Sart mPSS and USB) using the very latest and the oldest updates.

Thanks
Michael
 
MC1987 said:
I did it on Internet Explorer
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I was sent a brand-new firmware from the supplier (DH_NVR4x-4KS2L_MultiLang_V4.001.0000000.0.R.201230.bin) and this allowed the upgrade to go ahead successfully, so who knows what the problem was as there was no explanation other than Dahua assured him that this would work.

Thanks for all the advice, I appreciate it :)

Regards
Michael
 
Microboot said:
I was sent a brand-new firmware from the supplier (DH_NVR4x-4KS2L_MultiLang_V4.001.0000000.0.R.201230.bin) and this allowed the upgrade to go ahead successfully, so who knows what the problem was as there was no explanation other than Dahua assured him that this would work.

Thanks for all the advice, I appreciate it :)

Regards
Michael
Click to expand...
Hi Michael,

Could you please share a link to the file from the supplier, as I am having the same trouble with the upgrade?
 
Hi,

I just picked up one of these NVRs and had the same issue. Mine still had the original 2017 firmware. This thread was the top result so I just want to add a fix for anyone in the same position.

My device model is DHI-NVR4104HS-P-4KS2. I was able to flash the firmware V4.001.0000005.1 by downloading DH_NVR4XXX-4KS2_MultiLang_V4.001.0000005.1.R.210526(cert-ok).bin from:

I found a link to that repo in this thread: Dahua DH_NVR4XXX-I_MultiLang_V4.001.0000000.0.R.200622 and backtracked from there.

For some reason Dahua only has a web page for the 4KS2L variant of this model, which in the repo linked above has its own firmware version. Hence I think most people will be downloading the wrong version.
 
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