Customized version of Baidu input method: bring up the keyboard-click the "beep" icon-key feedback-drag the vibration adjustment indicator bar to the left;
Customized version of sogou input method: bring up the keyboard-click the "S" icon-key feedback-drag the vibration adjustment indicator bar to the left;
Jovi input method: bring up the keyboard-click the menu icon-key feedback-drag the vibration adjustment indicator to the left.
If it refers to the closing method of tactile feedback:
Go to Settings-Sound and Vibration/Sound, Vibration and Silent Keys-Tactile Feedback-Select "Close" to cancel vibration during clicking, sliding and other operations.
If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.