My videos or audio combination problem

[AC Question]

H/Sir i have a mobile oppo a37f and its video in phone and on you tube is no according to the audio. And i have also used our idea to tap on build no. But this is not working. Can you plz help me for thos immediately.

Thankyou in anticipation

 

[B. Diddy]

Welcome to Android Central! Are you saying the audio is out of sync with the video? Does this happen on both the YouTube app and the mobile website? Have you tried going to Settings>Apps​, selecting YouTube, and Clearing Cache/Data?