ZTE Z660G user manual Troubleshooting, Problem Possible Causes Possible Solution

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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.

 

 

 

78

 

 

 

 

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

 

 

 

 

 

 

(U)SIM card malfunction or damage.

Take the (U)SIM card to your service

 

provider for testing.

 

 

 

 

 

(U)SIM card error

(U)SIM card inserted improperly.

Insert the (U)SIM card properly.

 

 

 

 

Debris on the (U)SIM card contacts.

Use a soft, dry cloth to clean the (U)SIM

 

card contacts.

 

 

 

 

 

 

(U)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.

 

 

 

 

 

 

 

79

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Contents User Manual Table of Contents Table of Contents Getting Started Installing the Battery and a microSD CardSwitching Your Phone On/Off Charging the BatteryUsing the Touch Screen Locking/Unlocking the Screen and KeysGetting Started Key Functions Getting to Know Your PhonePersonalizing Applying New Wallpapers Switching to Silent ModeChanging the Screen Brightness Protecting Your Phone With Screen LocksMonitoring the Phone Status Personalizing When you’re ready to turn on encryptionKnowing the Basics Managing Shortcuts and Widgets Managing NotificationsEntering Text Organizing With FoldersRearranging Favorites Tray Editing Text Opening and Switching Apps Connecting to Networks and DevicesConnecting to Mobile Networks Connecting to Wi-FiConnecting to Bluetooth Devices Connecting to Virtual Private Networks Connecting to Your Computer via USBPlacing and Ending Calls Phone CallsAnswering or Rejecting Calls Working With the Call LogCalling Your Contacts Using Options During a CallChecking Voicemail Managing Multi-party CallsInternet Call Settings Adjusting Your Call SettingsPeople Setting Up Your Own ProfileChecking Contact Details Adding a New ContactSearching for a Contact Working With Favorite ContactsEditing Contacts Working With GroupsAdding or Removing Accounts Configuring Account SyncAccounts Checking Your Emails Setting Up the First Email AccountResponding to an Email Writing and Sending an EmailGmail Working With Received Attachments Changing Gmail SettingsSearching for Messages Working With LabelsMessaging Calendar Changing Calendar SettingsViewing Your Calendars and Events Creating an EventGoogle Talk Browser Google+Using Bookmarks Using Multiple Browser TabsChanging Browser Settings Downloading FilesMaps, Navigation, Local, and Latitude Google Search, Voice Search, and Voice Actions Camera Customizing Camcorder Settings Customizing Camera SettingsRecording a Video CameraOpening the Gallery GalleryWorking With Albums Working With PicturesCopying Music Files to Your Phone MusicViewing Your Music Library Playing MusicPlaying Your Music Play MusicMusic Adding a Song to a Playlist Removing a Song From a PlaylistOpening the Video Library Video PlayerPlaying and Controlling Videos Managing Video FilesMore Apps Sound RecorderPlay Store General Settings SettingsWireless and Networks DeviceSystem PersonalAccounts Problem Possible Causes Possible Solution TroubleshootingTroubleshooting Numbers feature For Your SafetyGeneral Safety FCC Compliance For Your SafetyRadio Frequency RF Energy Product Handling DistractionElectrical Safety Explosive Environments Radio Frequency InterferenceHandset specifications are shown in the following table Specifications
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