Samsung SGH-I637MAAATT - Manual (Page 119)

Troubleshooting 115
Section 15: Troubleshooting
Review the following problems and descriptions to assist in
troubleshooting your device.
General Problems
To perform a manual Hard Reset, power off the device.
Important!: Caution, if you perform a manual Hard Reset, the storage and
setting is also initialized.
Problem Description Solution
“Invalid or missing SIM card.
You can still make
emergency calls if your
service provider supports it”
displays Check that the SIM card was correctly
installed.
“No network coverage,”
“Error unable to connect. No
network coverage.” or
“Message sending failed”
displays • The network connection was lost.
You may be in a weak signal area
(in a tunnel or surrounded by
buildings).
Move and try again.
• You are trying to access an option
without a subscription. Contact the
service provider for further details.
i637.book Page 115 Monday, April 20, 2009 10:19 AM