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Services
When the TalkBack service app is enabled, spoken and vibration feedback help blind and vision-
impaired users interact with the terminal. The spoken feedback includes descriptions of what you touch,
select, and activate.
To enable or disable the TalkBack service app, select TalkBack on the Accessibility screen then touch
the ON/OFF toggle box in the upper right corner of the screen.
System
Under the System heading on the Accessibility screen, additional options are available to enable or
disable Large Text, touch screen Auto-rotation, spoken passwords, or ending calls using the Power
button . You can also set Touch & hold delay settings and permissions for Installing web scripts.
Developer options
Touch Developer options from the Settings screen to access advanced settings used by Android
application developers. For information on these settings, Android APIs, and development tools, refer to
the Android developer web site at http://developer.android.com.
About Phone
The About Phone screen displays specific information about the terminal including: Model number,
Android OS version, Baseband version, Kernel version, Build number, and RIL version.
Touch System Updates to view the last time the Android operating system was updated or to manually
initiate an Android update.
Touch Legal information to view important information on Open source software licenses.
Touch Status to view following terminal information:
• battery status,
• remaining charge level of the battery,
• carrier network,
• signal strength,
• mobile network type and state,
• service state,
• roaming status,
• phone number,
• IMEI and IME SV numbers,
• Wi-Fi MAC address,
• Bluetooth address, and
• serial number.
Note: The content of the About phone and Status screen are base on the terminal model type.