Hearing
To set hearing options:
1.Touch 
Settings ➔ Accessibility.
2.Configure the following settings:
•Mono Audio: When Mono audio is enabled, you can listen through one earphone to mono audio sound. When enabled, a
check mark 
appears in the check box.
•Turn off all sounds: Turn off all sounds including receiver
voice. When enabled, a check mark 
appears in the check box.
Mobility
To set mobility options:
1.Touch 
Settings ➔ Accessibility.
2.Touch Press and hold delay, and then touch a delay time.
Developer Options
Set options for application development.
Caution! These settings are intended for development use only. They can cause errors to occur on your device and with the applications on your device.
1.Touch 
Settings ➔ Developer options.
2.Touch the 
OFF / ON icon at the top of the screen to activate developer options.
3.Touch an option to enable it. When enabled, a check
mark 
appears in the check box.
4.To display and select options, touch 
.
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