User Guide

Troubleshooting

137

Troubleshooting

Problem Possible causes and solutions

Cannot turn the

power on

• Ensure that the battery is inserted correctly (page 39).

• Ensure that the battery is charged (page 42).

Cannot charge the

battery

• Ensure that the battery is inserted correctly.

• Ensure that the AC adapter and battery pack connectors are clean.

Cannot make or

receive voice or

video calls

• Check the signal strength indicator. If the display indicates a poor signal, adjust

your physical location to be clear of obstructions that may block the signal.

• A video call can only be made or received in an area with 3G coverage. Ensure

that the icon indicating that you are in an area with 3G coverage is displayed.

• If you enter the PIN code incorrectly three times in a row, the PIN lock will be

set, preventing calls being made because access to the SIM card is blocked

(page 75). Enter the PUK code to cancel the PIN lock.

• If the indicator appears on the display, enter your security code to cancel the

phone lock.

Cannot use the

Internet

• Check your subscription status. Contact your service provider.

• The network settings may be incorrect. Check the network settings. For details

of network settings, contact your service provider.

Cannot use SMS or

MMS

• Check your subscription status. Contact your service provider.

• Ensure that the service centre number is correct. For details of the service

centre number, contact your service provider.

G910_UM_EN_covered.book Page 137 Thursday, January 24, 2008 10:08 AM