Troubleshooting, System, Accounts

Settings

Troubleshooting

•Trusted credentials: Display trusted CA certificates.

•Install from SD card: Install certificates from the memory card.

•Clear credentials: Delete all certificates.

Backup and Reset

•Back up my data: Back up app data, Wi-Fi passwords, and other settings to Google servers after you sign in to your Google account.

•Automatic restore: Restore previously backed up settings and data when you reinstall an app.

•Factory data reset: Reset your phone to factory default settings. All your personal data from the phone’s internal storage will be erased. You can also erase the data on the memory card during

the process.

System

Accessibility

Configure the system accessibility options and accessibility plug-ins on your phone, such as using TalkBack for low-vision users.

Developer Options

Developer options contains settings that are useful when developing Android applications.

About Phone

View phone status, legal information, and other information. Meanwhile, you can also update your phone software through storage card updates.

To update your phone software through microSDHC card:

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
Poor reception	(for example, during peak times, there may	Avoid using the phone at such times, or try
	(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
	Poor network link quality on the part of	switched to a better-quality network link or

Accounts

Manage your accounts and synchronization. Tap Add account to sign in to or create accounts on your phone.

Tap an account type to see that type of accounts you have added and adjust the accounts settings.

1.Copy the update package to the root directory of microSDHC card. Please make sure the update package has been renamed to update.zip.

2.Press the Menu Key > System settings > About phone > System updates > Storage card updates, then click OK and choose Update now.

3.The system reboots and begins the microSDHC upgrade.

4.When the upgrade is finished, the system will reboot with new software.

	your service provider.	phone line.
Echo or noise		phone line.

		End the call and dial again. You may be
		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
Unable to select	these features, or you have not applied for	Contact your service provider.
certain features	these features, or you have not applied for	Contact your service provider.
certain features	services that provide these features.
	services that provide these features.

Settings