Gigabyte GSmart MD800 User Manual - GSmart MD800 English Version - Page 19

SMS Center Use default number in phone or uncheck to input service center number manually. Click Apply after making any changes. 5.3 SIM Setting SIM Enable/Disable or change the SIM card Personal Identification Number (PIN). Press Apply after making any changes. A SIM card must be inserted for this function to be active. PIN Enable To check Enable PIN, enter your PIN number and then press Apply. The PIN code will be able to use. Uncheck Enable PIN, and then enter PIN number and press Apply, PIN code will be disabled. Validity Period In this section, you can set how long you want to keep sending message if it does not send out successfully. Press the bar, you can choose one hour, six hours, twelve hours, one day, three days or the longest term. PIN Password You can change PIN password here. First, enter old PIN number, and then enter new one. Confirm the new PIN number then your 5-2 MD800