From the home screen, use two fingers to swipe down the Status bar.
Tap the Settings icon.
Scroll to and tap Accessibility.
Tap the TalkBack switch to ON.
Read the prompt and tap OK.
TalkBack is now enabled.
To exit, double tap the Home key.
Note: When TalkBack is enabled, basic device navigation is altered. You must swipe with two fingers instead of one to navigate. To select items, you must tap an item once to highlight and read aloud the name of the item, then you must double tap on the screen to select it.
To disable TalkBack, swipe down the Status bar with two fingers.
Double tap the Settings icon.
Double tap Accessibility.
Double tap TalkBack.
Double tap the TalkBack switch.
Double tap OK.
Talkback is now disabled.