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156 Troubleshooting
You cannot make
outgoing calls
The SIM card is not installed. Install a valid SIM card in
your device.
Poor signal. Move to an open space, or if
you are inside a building,
move closer to a window.
Your device is in Airplane
mode with no wireless
connectivity.
Touch the status area on the
status bar and clear the
Airplane mode check box.
You have enabled the Call
barring feature.
Touch the Home button
→ Menu button →
Settings→ Call settings→ Call
barring→ Deactivate all.
You have enabled Fixed
Dialing Numbers.
Touch the Home button
→ Menu button →
Settings→ Call settings→
Fixed Dialing Numbers.
Disable Fixed Dialing
Numbers (FDN).
You cannot answer
incoming calls
Poor signal. Move to an open space, or if
you are inside a building,
move closer to a window.
Your device is in Airplane
mode with no wireless
connectivity.
Touch the status area on the
status bar and clear the
Airplane mode check box.
You have enabled the Call
barring feature.
Touch the Home button
→ Menu button →
Settings→ Call settings→
Additional call settings→ Call
barring→ Deactivate all.
Unable to add contacts
to the device
Memory for storing
contacts is already full.
Delete unnecessary contact
information from the
device.
Echo or noise
Poor network trunk quality
on the part of your service
provider, or poor local
telephone line quality.
Hang up and dial again. You
may be switched to a
better-quality network trunk
or phone line.
Problem Possible causes Possible solutions
bk0.book Page 156 Friday, November 19, 2010 12:24 PM