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9
Troubleshooting
If you have trouble with your device, try
these procedures before you contact a
service professional.
Contacting a service centre
If you have attempted the
troubleshooting solution and are still
having problems with your device, make
a note of the following information and
contact your local dealer or Samsung
after-sales service:
• Model number(s) of your device
• Serial number(s) of your device
• A clear description of the problem
When contacting Samsung, use the
contact phone numbers, web addresses,
or postal addresses for your country of
residence.
When you turn on your device, the
following messages may appear:
Message
Try this to solve the
problem:
Insert SIM
card
Ensure that the SIM card is
installed correctly.
Locked
The autolock feature is
enabled. To use the device,
you must press <
Unlock
>
and enter the code. To
disable the autolock feature,
1. Press [ ]
→
Settings
→
General
→
Security
→
Phone and SIM card
.
2. Set the Phone autolock
period to
None
.
SGH-i455.book Page 95 Friday, January 18, 2008 3:38 PM