Sony 1239-7559 User Manual

I cannot use Internet-based services

Make sure your subscription covers data downloads and that the Internet settings in your

phone are correct. See Internet and messaging settings on page 28 for more information

on how to enable data traffic, data roaming, and download Internet settings. Contact your

network operator for more information about your subscription settings.

Error messages

No network coverage

•

Your phone is in flight mode. Make sure flight mode is off.

•

Your phone is not receiving any network signal, or the received signal is too weak. Contact

your network operator and make sure that the network has coverage where you are.

•

The SIM card is not working properly. Insert your SIM card in another phone. If this works,

it is probably your phone that is causing the problem. In this case, contact the nearest

Sony Ericsson service center.

Emergency calls only

You are within range of a network, but you are not allowed to use it. However, in an

emergency, some network operators allow you to call the international emergency number

112. See Emergency calls on page 31 for more information.

SIM card is locked.

You have entered your PIN incorrectly 3 times in a row. To unlock the phone, you need the

PUK provided by your operator.

SIM card is PUK-locked.

You have entered your PUK (Personal Unblocking Key) incorrectly 10 times in a row. Please

contact your service provider.