How to disable TalkBack in redmi 3s prime, redmi note 4, 2s Prime, mi 4i, redmi note 3, mi 5i, Y1

wish all happy new year 2017……
this is most helpfull video (100%Solved)
that solutions can be used in
redmi note 4
redmi 3s
redmi 2s Prime
redmi 2s
mi max
mi4i
redmi y1
Redmi note 3
How to solve TalkBack problem in redmi 3s prime and all smartphone
https://youtu.be/vZVSDLg4YDU