Lock the keysWhen the device or keypad is locked, calls may be possibleto the official emergency number programmed into yourdevice.The keypad of your device locks automatically to preventaccidental keypresses.To change the length of time after which the keypad islocked, select Menu > Ctrl. panel > Settings andGeneral > Security > Phone and SIM card > Keypadautolock period.To lock the keys manually in thehome screen, press the left selectionkey and then the right selection key.To lock the keys manually in themenu or in an open application,press the power key briefly, andselect Lock keypad.To unlock the keys, press the left selection key and thenthe right selection key.AccessoriesYou can connect your device to a range of compatibleaccessories. Check the availability of the approvedaccessories with your dealer.Connect the headsetWarning: When you use the headset, your abilityto hear outside sounds may be affected. Do not use theheadset where it can endanger your safety.Connect the compatible headset to the headset connectorof your device.Attach a wrist strapThread the wrist strap, and tightenit.15 Quick start guide