User manual
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Accessibility shortcut
Turn on the switch
to enable quick activating for accessibility features.
Text-to-speech output
Go to Settings > Language & input > Text-to-speech output > Preferred
engine/Speech rate/Listen to an example/Default language status for
more.
Long press delay
Touch to adjust the duration of touch and hold delay. This function enables
your phone to set how long you need to hold your touch down before it
registers.
Color inversion
Touch the switch to turn on/off colour inversion.
Color correction
Turn on the switch
to enable colour correction. You can also select your
correction mode in this menu.
10.4.4 Printing
Your phone supports wireless printing to enabled printers and online services.
10.4.5 Regulatory & safety
Open to view Regulatory & safety information, including Product model,
Manufacturer name, etc.
10.4.6 Developer options
To enable this function, go to Settings > About phone, then touch Build
number 7 times. Now Developer options is available. The developer options
screen contains settings that are useful for developing Android applications.