Nokia is a cell phone company that sells a wide selection of cell phones. If you have a Nokia phone, you may wish to lock your keypad to avoid accidentally pressing keys while the phone is not in use. Nokia phones come with a feature called Keyguard, to help control key presses. How you lock your keypad will vary based on the cell phone model you have. As long as you have programmed an official emergency service number to your phone, such as 911, you still have the ability to call for emergency even if you locked your keypad.
Press the left selection key. Then press the "Star" key. To unlock, follow the same step.
Press the Menu key. Next press the "Star" key or hold down the left selection key. To unlock your keypad, hit "Unlock" and the "Star" key.
Lock your keypad while in Menu or inside an application. Then hit the "Power" key and choose "Lock Keypad."
Press the "Power" key. Choose "Lock Keypad."
Press the left selection key. Then press the right selection key.
By default, your Nokia phone will auto-lock the keypad after a certain time has passed. To change the time length, go to “Menu,” “Tools,” “Settings,” “General Security,” “Phone and SIM card” and finally “Keypad autolock period.” Another option, depending on your phone model, is “Menu,” “Control Panel,” “Settings,” “General,” “Security, “Phone and SIM card” and then “Keypad autolock period.”
If you need to call for an emergency and you programmed the number in your phone, enter in the number and press the right selection key.