9
next time you switch on the phone.
PIN and PUK
The personal identity number (PIN) protects your SIM card from
unauthorized use. The personal unlocking key (PUK) can unblock
the blocked PIN. Both PIN and PUK are delivered with the SIM card.
For details, consult your service provider.
If you enter wrong PINs for a specified number of times
consecutively, the phone asks you to enter the PUK code.
If you enter wrong PUKs for a specified number of times
consecutively, the UIM card is invalidated permanently. Contact your
service provider for a new card.
Locking the Keypad
In the standby mode, press
for 3 seconds to lock the keypad.
When the keypad is locked, you can press
to answer an
incoming call or make emergency calls.
You can press
then
to unlock the keypad.
When the
Keypad lock
function is enabled, if there is no operation
on the phone for a preset period in the standby mode, the keypad is
locked automatically.
Changing the Text Input Modes
The indicator of the current text input mode is displayed on the
screen. In the editing mode, press
to change the input mode.
Summary of Contents for B503B2
Page 1: ...B503B2 Mobile Phone USER GUIDE ...
Page 3: ...1 Your Phone ...
Page 7: ...5 Menu Tree ...
