akk 0 Posted June 19, 2016 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 Share this post Link to post Share on other sites