To Switch The Phone On And Off; If The Phone Asks For A Pin Code - Nokia 640 User Manual

To switch the phone on and off

Press and hold the
If the phone asks for a PIN
code:
Note: as a default the PIN code request is Off. Use Menu
PIN code request
4 3 1
• See chapter Access codes, PIN code for further information
about the code and its use.
Warning! Do not switch on the phone when wireless phone
use is prohibited or when it may cause interference or
danger.
Normal position: Hold the phone as you would any other telephone
with the antenna pointed up and over your shoulder.
Tips on efficient operation: As with any other radio transmitting
device, do not touch the antenna unnecessarily when the phone is
switched on. Contact with the antenna affects call quality and may
cause the phone to operate at a higher power level than otherwise
needed.
©2001 Nokia Mobile Phones. All rights reserved. 14
key for a second.
• Key in the PIN
code, which is displayed as asterisks *,
and press
to turn the PIN code request
Using your phone
OK.
On
.