Plug the USB flash drive into an available USB port on your DVR or NVR. Navigate to Upgrade: Go to Main Menu > Advanced > Upgrade .
Go to your recorder’s Main Menu > System Info > Version . V4.03.r11 H.264 H.265 Dvr Nvr Firmware Download -HOT
V4.03.r11 H.264 H.265 Dvr Nvr Firmware Download: Complete Guide and Update Procedures Plug the USB flash drive into an available
: Navigate to Main Menu > System Info > Version . V4.03.r11 H.264 H.265 Dvr Nvr Firmware Download -HOT