Samsung SGH-S307SSACIN - Manual (Page 64)

Solving Problems
120
The phone starts beeping and
“**Warning** Low Battery” flashes on
the display
• The battery is insufficiently charged. Replace the
battery and recharge it.
The audio quality of the call is poor
• Check the signal strength indicator on the display
( ); the number of bars indicates the signal
strength from strong ( ) to weak ( ).
• Try moving the phone slightly or moving closer to
a window if you are in a building.
No number is dialed when you recall a
Phonebook entry
• Check that the number has been stored correctly,
by using the Phonebook Search feature.
• Re-store the number, if necessary.
If the above guidelines do not help you to solve
the problem, take a note of:
• the model and serial numbers of your phone
• your warranty details
• a clear description of the problem
Then contact your local dealer or Samsung after-
sales service.
121
Access Codes
There are several access codes that are used by
your phone and its SIM card. These codes help you
protect the phone against unauthorized use.
When requested for any of the codes explained
below, enter the appropriate code (displayed as
asterisks) and press the OK soft key. If you make a
mistake, press the
key until the incorrect digit
is cleared and then continue entering the correct
code.
The access codes, except for the PUK and PUK2
codes can be changed using Security menu
options (Menu 4.6). See page 84 for further
details.
Important! Avoid using access codes resembling
emergency numbers, such as 911, so
that you do not dial an emergency
number accidentally.
Phone Password
The Phone Lock feature uses the phone password to
protect your phone against unauthorised use. The
phone password is supplied with the phone and is
preset to “00000000” at the factory.
To See
activate/deactivate the
Phone Lock feature page 85
(Menu 4.6.3).
change the phone
password page 85
(Menu 4.6.4).