[GSW-4804SF] How to deal forgotten password situation of GSW-4804SF?

Solution:
Please refer to chapter 3.3 Reset to Factory Default Mode under Console Interface from GSW-4804SF user’s manual for reset Switch to factory default mode
Factory-default IP Address and username / password are shown as following:

Default IP address: 192.168.0.100
Default User Name: admin
Default Password: admin