[ICA-3250V] How to reset the ICA-3250V to factory default values?

Please follow below steps to factory default ICA-3250V
1. Remove the power and Ethernet cable.
2. Take an electronic wire, plug one side of the wire into "Default" and the other side into "GND" on the terminal block as the picture below.

3. Connect power to the camera again. It takes around 30 seconds to boot the camera.
4. Remove the wire and plug in the Ethernet cable after the camera finishes booting.
5. Use the IPInstaller utility to search your ICA-3250V.
6. Re-login the camera using the default IP (http://192.168.0.20), and user name (admin), password (admin)