ZTE Z930L user manual Troubleshooting, Problem Possible Causes Possible Solution

Troubleshooting

If you encounter problems while using the phone, or if it performs abnormally, you can refer to the chart below. If your particular problem cannot be resolved using the information in the chart, contact the dealer where you purchased the phone.

Problem	Possible Causes	Possible Solution
	The network signal is too weak at your
	current location, for example, in a basement	Move to a location where the network
	or near a tall building, because wireless	signal can be properly received.
	transmissions can not effectively reach it.
Poor reception	The network is busy at the current time
	(for example, during peak times, there may	Avoid using the phone at such times, or try
	be too much network traffic to handle	again after waiting a short time.
	additional calls).
	You are too far away from a base station for	You can request a service area map from
	your service provider.	your service provider.
	Poor network link quality on the part of	End the call and dial again. You may be
		switched to a better-quality network link or
	your service provider.
		phone line.
Echo or noise
		End the call and dial again. You may be
	Poor local telephone line quality.	switched to a better-quality network link or
		phone line.
Unable to select	Your service provider does not support
	these features, or you have not applied for	Contact your service provider.
certain features
	services that provide these features.
	The battery or battery charger is damaged.	Contact the dealer.
Battery not	The phone’s temperature is below 32°F	Adjust the battery charging environment to
	(0°C) or higher than 113°F (45°C).	avoid extremes of temperature.
charging
	Poor contact between the battery and	Check all connectors to make sure all
	charger.	connections have been properly made.
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		Troubleshooting
Problem	Possible Causes	Possible Solution
	The standby time is related to your service
	provider system configuration. The same	If you are located in an area where
	phone used with different service providers’	signaling is weak, temporarily power off
	systems will not provide exactly the same	the phone.
	length of standby time.
Shortened standby	The battery is depleted. In high temperature	Use a new battery.
time	environments, battery life will be shortened.
	If you are not able to connect to the
	network, the phone will continue to send	Change your location to one where the
	out signals as it attempts to locate a base	network is accessible, or temporarily turn
	station. Doing so consumes battery power	off your phone.
	and will consequently shorten standby time.
Cannot turn your	Battery power has been depleted.	Recharge the phone’s battery.
phone on
	micro-SIM card malfunction or damage.	Take the micro-SIM card to your service
		provider for testing.
micro-SIM card
	micro-SIM card inserted improperly.	Insert the micro-SIM card properly.
error
	Debris on the micro-SIM card contacts.	Use a soft, dry cloth to clean the micro-SIM
		card contacts.
	micro-SIM card invalid.	Contact your service provider.
Unable to connect	You are not within the network’s service	Check the service area with your service
	area.	provider.
to the network
	Poor signal.	Move to an open space, or if you are inside
		a building, move closer to a window.
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