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Keypad lock To prevent accidental key presses,
and press * within 3.5 seconds to lock the keypad. To unlock the keypad, select Unlock, and press * within 1.5 seconds. If the security keyguard is on, enter the
security code when requested. To set the keypad to lock
automatically after a preset time when the phone is in the standby mode, select Menu >
Settings > Phone > Automatic
keyguard > On. To answer a call when the keypad is
locked, press the call key. When you end or reject the call, the keypad locks
automatically. When the device or keypad is locked,
calls may be possible to the official emergency number programmed into your device.
can manually lock the keypad to avoid pressing keys by accident. You
can still answer an incoming call and the keypad will lock again when
the call is finished. The keypad remains locked until you unlock it
manually. Depending on your phone model, you can activate the
automatic keylock. When the automatic keylock is activated, the keypad
locks shortly after you stop pressing keys. Please note: with
some phones you can still use external keys when the keypad is locked.
If you wish to lock the external keys you must lock them separately.
first, take out the battery and press the RED end call key for 15 seconds, then put the battery back in and turn on the phone.
if that doesn't work then try this from the website.
How do I lock/unlock the phone's keypad?
To lock and unlock your phone's keypad, press and hold the left navigation key.
Or, select Menu -> Settings -> Keyguard. Then highlight either of the options and press the OK
button. You can set your phone to lock the keypad immediately, or
automatically if no key is pressed after 30 seconds, 1 minute, or 5
if you go to menue settings security then phone lock and lock now or auto lock you defalt security code is 1234 for the slvr if you bought your phone second hand id preform a master reset on the phone first and reset all settings back to factory if you want to try that to its menue settings initial set up master reset and def is 6 zeros 000000 hope that helps you