790T: 1.Long press “Charging” button till “CONN”shows on the LED display. 2.Click “update”. 3.Input password of the WIFI. 4.Click “Connect and update”.
811GB(Only for European countries): 1.Long press “power” button 3 second till the WIFI flash slowly. 2.Click “update”. 3.Input password of the WIFI. 4.Click “Connect and update”.