Step 1:  Connect to the product WiFi

USB WiFi Password is 1234567890

MiFi WiFi Password is 12345678

Step 2:  Go to Google Chrome / Internet Browser

  USB WiFi :     192.168.100.1

  Login User: admin ,     Pass: admin

  MiFi WiFi :     192.168.0.1

  Login User: admin ,     Pass: admin

Step 3 Go to Setting> WLAN> WLAN Basic Settings

SSID=   "WiFi Name"

WPA Pre-shared key:   = "WiFi Password" 

Click Apply when done.