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7
To set the phone to silent
From standby, press and hold .
To lock or unlock the keypad
• To avoid dialling a number by accident, press and
select Lock keys.
• To unlock the keypad, press and select Unlock.
% 55 Keypad lock for more information.
To turn the screen light on
Press any key to turn the screen light on.
SIM card
When you register as a subscriber with a network
operator, you get a SIM (Subscriber Identity Module) card.
The SIM card keeps track of your phone number, the
services included in your subscription, and your contact
information, among other things.
If you have been using a SIM card in another phone,
make sure that your information is saved to the SIM
card before you remove it from the other phone.