DropDeadDavey

Hi all, I am looking for advice. I have 12 DaHau IPC-HWF3200S cameras and I want to find a compatible POE powered NVR system. I have Looked at both the Swann NVR16-7200 and the equivalent HikVision POE NVR and my cameras won't work directly with either system. although they will work with the Swann system if you use a separate POE switch. ideally I would like to connect these cameras to the POE ports on the NVR so my question is this... Does anyone know of a way to successfully do this? Is it possible for instance to upload the Swann firmware into the DaHua cameras and if so where can I get the firmware file. My preference is to use the Swann system as i like the interface and it is readily available locally whereas the HikVision is more complicated to buy. I don't particularly want to use the DaHua NVR as the software is old Any good advice is welcome Thanks for reading