I'll apologize in advance if this is too basic of a question but I'm hoping to get some consolidated help. 
I have two IPC-HDW5231R-Z that are finally going to arrive today. Up until now I've been 100% Hikvision but I'm excited to see the low light performance and capabilities and then possibly sell my Hik's in the future and replace with all Dahuas.
I'm currently using BlueIris for an NVR.
With that said I'm fuzzy on some basic things I need to set up (and it might become more clear once I have the cameras but I'd at least like to be prepared). I ordered these from EMPIRETECANDY if that makes any difference.
Josh

I have two IPC-HDW5231R-Z that are finally going to arrive today. Up until now I've been 100% Hikvision but I'm excited to see the low light performance and capabilities and then possibly sell my Hik's in the future and replace with all Dahuas.
I'm currently using BlueIris for an NVR.
With that said I'm fuzzy on some basic things I need to set up (and it might become more clear once I have the cameras but I'd at least like to be prepared). I ordered these from EMPIRETECANDY if that makes any difference.
- Normally when I get a device I upgrade to the latest firmware. I've seen several threads but I'm not sure where to begin. What's the best procedure for upgrading the firmware on these?
- Any settings I should pay attention to that I might overlook that are important? Again, the low light settings and performance are what I'm looking for.
- Is there anything that I will not be able to do, or where performance will be lacking, because I'm using BlueIris vs a Dahua NVR?
Josh