Samsung SGH-I320ZKAXEF, SGH-I320ZKAVIA, SGH-I320ZKAXEG manual Troubleshooting, General problems

10 Troubleshooting

General problems

Problem	Description & Solution
“Invalid or	Check that the SIM card has been
missing SIM card.	correctly installed.
You can still make
emergency calls if
your service
provider supports
it” displays
“No network	• The network connection has been lost.
coverage,” “Error	You may be in a weak signal area (in a
unable to connect.	tunnel or surrounded by buildings).
No network	Move and try again.
coverage.” or	• You are trying to access an option for
“Message sending	which you have not taken out a
failed” displays	subscription with your service provider.
	Contact the service provider for further
	details.
The bars next to	• If you have just turned on your phone,
disappear	wait about 2 minutes, until your phone
	finds the network and receives a signal
	from the network.
	• If you are in a tunnel or in an elevator,
	the phone may not be able to receive
	the network signal properly. Move to
	an open place.
	• This may appear when you move
	between different service areas. It is
	normal.
The display is not	In direct sunlight, you may not see the
clear	display clearly. Moving to a place with
	different lighting should solve this
	problem.
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