When the power is switched on and the BSI line is grounded by a resistor, all the used lines (VSIM, RST, CLK, DATA) rise up to 5 V four times. Page 54 Nokia Mobile Phones Ltd. Load File button (ALT+L): Page 66 Nokia Mobile Phones Ltd. Graphical Welcome Message check box (ALT+G): When checked user selects to restore default graphical welcome message.