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8
Low battery indicator
When the battery is low:
• a warning tone sounds,
• the battery low message displays, and
• the empty battery icon blinks.
If the battery level becomes too low, the phone
automatically turns off. Recharge your battery.
Power on or off
Keypad lock
You can lock the keypad to prevent accidental key
presses from affecting phone operations.
In Idle mode, press and hold [ ] and press <
Yes
>.
To unlock the keypad, press the left soft key and
then [ ].
You can also set the phone to lock the keypad
automatically.
p. 68
When the phone is completely charged (the
battery icon becomes still), unplug the adapter
from the power outlet.
Remove the adapter from the phone.
Switch on
Do not turn on the
phone when
mobile phone use
is prohibited.
1. Press and hold [ ] to turn
on the phone.
2. If necessary, enter the PIN
and press <
Confirm
>.
Switch off
Press and hold [ ].
Z150.book Page 8 Friday, April 21, 2006 4:02 PM