How to disable the TalkBack function when the screen is dim

TalkBack is a service that helps visually impaired people, by using audible prompts to guide users to their intended choice/icon. You can turn off the TalkBack function by following these steps:

1. Press Home button on remote.
2. Press ↓ (Down arrow) several times, and select Settings.
3. Press ↓ (Down arrow) twice.
4. Press → (Right arrow) several times, and select Accessibility.
5. Press ↓ (Down arrow) once, and select Services.
6. Press ↓ (Down arrow) once, and select Talkback on.
7. Select State on, a voice will say on.
8. Press ↓ (Down arrow) once, then a voice will say off.
9. Press Enter, then a voice will say OK.
10. Press Enter.

NOTE: This issue does not occur when TalkBack is updated to ver 4.1 or later from the Google Play Store.