phone has a warning triangle with exclamation mark in the top left corner, anyone know what it means ? as far as I know swmbo hasn't changed anything thanks ok, found it in the manual... eventually it means there's an "Error" and can be any of the following... 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 24 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.