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Troubleshooting
Problem
Cannot turn the power on.
Cannot charge the battery.
Cannot make or receive
voice calls and video
callings.
Cannot use the Web.
Cannot use SMS and MMS. • If the
Appendix
126
Possible Causes and Remedies
• Make sure the battery pack is inserted correctly (page 22).
• Make sure the battery is charged (page 23).
• Make sure the battery pack is inserted correctly (page 22).
• Make sure the connectors or contacts of the AC adapter and battery pack are not dirty (page 23).
• If the
indicator appears on the display, move to a location where a signal can reach your phone or that is in the
service area.
• If the
indicator appears on the display, cancel Flight mode (page 105).
• A video calling can only be made or received in areas with 3G-network coverage. Make sure the
for indicating you are in an area with 3G-network coverage appears on the display in standby mode.
• If a PIN code is incorrectly entered three times in a row, the PIN lock is set and a call cannot be made because
access to the SIM card is blocked. Enter the PUK code to cancel the PIN lock (page 20).
• If the
indicator appears on the display, enter your security code (page 21) to cancel the phone lock (page 108).
• Make sure your phone is not set to reject calls (page 108) or divert calls (page 32).
• If the
indicator appears on the display, cancel Flight mode (page 105).
• Check your subscription status. Contact your service provider.
• The network settings may be incorrect. Check the network settings (page 110). For details on the network settings,
contact your service provider.
indicator appears on the display, cancel Flight mode (page 105).
• If the
indicator appears on the display, delete messages no longer required (page 83).
• Check your subscription status. Contact your service provider.
• Make sure the service centre number (page 85) is correct. For details on the service centre number, contact your
service provider.
or
indicator
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