hi Guys 
  
I have a generic 8ch nvr. I was wanting to know if there is a firmware upgrade to the unit. The nvr model is a 
NVR-6600801A 
  
On the board it says 
  
T8-3520D V2.02 
  
Chipset is a Hi3520 
CRQCv100 
CP0531407 
  
The software on the unit is a generic linux based system. Like the one found here