Filter
Top Products
172 Troubleshooting
This is the Internet version of the user’s guide. © Print only for private use.
Communication problems
Telephone does
not work
• The received signal can be too weak, possibly
because you are being shielded from the signal.
Check your display signal strength indicator.
Move outdoors or up from the ground to obtain a
sufficiently strong signal.
• Make sure the P900 is not set into Flight mode.
• Your P900 might be busy sending or receiving
data or e-mail.
• Check the settings for diverting or restricting
calls. See ‘Divert calls’ on page 53, ‘Accepted
callers’ on page 53 and ‘Restrict calls’ on
page 53.
•If
Emergency calls only
is displayed on the
screen, you are not allowed to use the network
within range. You can, however, usually make an
emergency call using the emergency number.
•If
No network
is displayed on the screen, you are
in an area that is not covered by a network or the
received signal is too weak.
Cannot hear
incoming call
• Increase the ring signal volume.
• Increase the ring signal volume.
The persons I
talk with has
problems
hearing what I
say
• Make sure you do not cover the microphone
when you talk. You find the microphone at the
bottom, next to the connector.
• You could be almost out of network range. The
sound improves with a better network
connection.
Cannot use
WA P
• Your subscription does not include WAP. Check
with your service provider.
• The settings are not correct. Enter new settings.
Contact you service provider or visit
www.sonyericsson.com/support and use the
WAP configurator.
Cannot send
nor receive
SMS or MMS
• Your subscription does not include SMS or
MMS. Check with your service provider.
• Check with you service provider that you have
entered the correct Service Centre phone
number.
• Check the settings in the Control panel. Contact
you service provider or visit
www.sonyericsson.com/support and use the
MMS configurator.
• Make sure that Flight mode is deactivated.
• Phone memory might be full. Delete some
pictures or music, for example.