The DVR is designed to be upgraded through firmware updates.
Firmware upgrades can be initiated in engineering mode.  To start engineering mode, do the following: 

In order to upgrade, the upgrade firmware must first be downloaded and copied into the USB device.  Create a new folder in the USB device and copy the upgrade firmware "app.bin" into the folder.  The folder name should be "upgrade". 



After the upgrade firmware is copied into the USB device, do the following:
1.	Press the SETUP button and enter the admin password.
2.	Go to the SYSTEM and select the ADMIN PASSWORD.
3.	Enter the password as 12341234, and press the SEL button.
4.	The engineering mode screen "DVR DIAGNOSTICS" will appear.
5.	Select USB UPGRADE, and then the upgrading will start automatically.
6.	After the upgrade is completed, select BOOT APPLICATION to reboot DVR.