Upgrade firmware via USB flash disk

------For DVRs with MPEG4 network transmission

Step 1, Format your USB disk with FAT32 file system.

Step 2, Copy all firmware files to your USB flash disk, and put them in root directory.

Step 3, Connect the USB disk with DVR's USB port on front/rear panel.

Step 4, Select the menu “SYSTEM INFO” → “UPGRADE”, and then press “START” to confirm it.

Step 5, It need 5~10 minutes to finish all process and you will see the upgrading information on the screen. Also the DVR will reboot later.