1.    Set a fix IP of your computer like 192.168.188.X

2.    Then open browser and insert 192.168.188.253 to login the user interface

3.    Default login password is admin

4.       After login, click “advanced” –> “management”-> “Upgrade Firmware”

5.       Choose file and click “Upgrade”

6.       After upgraded, have to reset the device. “Advanced”-> “Management”-> “System”-> “Reset Default”