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Section 14: Troubleshooting
Topics Covered
• General Problems
• Call Problems
• Power and Charging Problems
• Program Problems
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.