Samsung SOUL SGH-U900 - Manual (Page 145)

troubleshooting
144
While using your phone, the following messages may
appear:
Message Try this to solve the problem:
Please insert SIM
card Ensure that the SIM or USIM card is
installed correctly.
Phone lock When the phone lock feature
is enabled, you must enter the
password you set for the phone.
PIN lock When using the phone for the first
time or when the PIN requirement
is enabled, you must enter the PIN
supplied with the SIM or USIM card.
You can disable this feature by using
the PIN lock menu.
PUK lock Your SIM or USIM card is blocked,
usually as a result of entering your
PIN incorrectly several times. You
must enter the PUK supplied by your
service provider.
Your phone displays “Service unavailable” or
“Network error.”
When you are in areas with weak signals or poor •
reception, you may lose reception. Move to another area
and try again.
You cannot access some options without a subscription. •
Contact your service provider for more details.
You enter a number, but the call is not dialled.
Ensure that you have pressed the Dial key: [ • ].
Ensure that you have accessed the right cellular network. •
Ensure that you have not set call barring for the phone •
number.
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