Anyone here who know's what should I do to fix this? There's no audio in every videos I downloaded. This just happened 2 days ago. Please help. Thank you in advance.
If the video sound works when the video file is played using another device then the issue could be with the phone’s speaker. Have you tried playing playing some music on the phone or playing some YouTube videos? Does the sound work? If it doesn’t work then chances are this could be caused by a defective speaker in which case you need to bring your phone to a service center and have it checked.
If the sound works then the issue could be with the video player app you are using. Try to check if the volume of the app is not muted. You should also check if the phone is not set to mute sounds. You should also clear the cache and data of the video app to verify if some temporary data of the app is causing the problem. One other option that you should consider is to download a third party video app and test if the sound works with it.
If the above steps fail then I suggest you backup your phone data then do a factory reset.
