Sony Ericsson K790 User Guide - Page 82
No Netw. Coverage, Emerg. Calls Only, Phone Lock, Phone lock code, Possible cause, Solution
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No Netw. Coverage Possible cause: Your phone is in flight mode. Solution: Restart the phone in normal mode % 7 Flight Mode Menu. Possible cause: Your phone is not receiving any radio signal, or the received signal is too weak. Solution: Contact your service provider and make sure that the network has coverage where you are. If so, search for a network. Possible cause: The SIM card is not working properly. Solution: Insert your SIM card in another phone. If you still get the same or a similar message, please contact your service provider. Possible cause: The phone is not working properly. Solution: Insert your SIM card in another phone. If this works, it is probably the phone that is causing the problem. Please contact the nearest Sony Ericsson service location. Emerg. Calls Only Possible cause: You are within range of a network, but you are not allowed to use it. However, in an emergency, some service providers allow you to call the international emergency number 112. Solution: You have to move to get a signal that is strong enough. Contact your service provider and make sure you have the right subscription % 20 Emergency Calls. Phone Lock Possible cause: The phone is locked. Solution: To unlock the phone % 76 Phone Lock. Phone lock code: Possible cause: The phone lock code is required. Solution: Enter a phone lock code. Your phone has a default phone lock code 0000 % 76 Phone Lock. 82 Troubleshooting This is the Internet version of the user's guide. © Print only for private use.