WHERE TO FIND NEW FIRMRWARE FOR DAHUA (OLD SYSTEM 2014)

Hi guys!!

Its been quite hard for me to find the right firmware for several DVRs I have down hacked.

I found a fix for the XVRs but cant find the right firmware for HCVR built in 2014 and 2015.

Does anybody knows where to find that firmware? even when I get directly to Dahua, I don't see these version or models in the list.

Any help will be highly appreciated.

Thanks