

So arm yourself with patience, and let's get an easy and fast way to fix the issue. While it won't cost you anything to try to fix the problem of muted MP4 files by yourself, read the following top 3 causes, and work the troubleshooting guide as well. The bad news is it could be any piece of software on your device that's causing the problem or even the file itself could be corrupted beyond repair, and it's merely impossible to know what's the cause in advance. It means that you will most likely not have to fiddle with wiring or take your device to a licensed professional for a costly repair. The good news is that the problem is very rarely related to hardware. It isn't a cause for alarm, as such things happen quite often without anyone being at fault.

However, the MP4 file format is supposed to be universally compatible across all platforms and operating systems. Sometimes, the MP4 file you've recorded with one device will refuse to play its sound on another device. Once you diagnose the issue, you will be able to fix no sound video with relatively little effort and without having to rage against the machine.

Now what? Don't panic, as every problem has a root cause that you will be able to determine by using this handy checklist. But, the MP4 file doesn't have any sound. You've finally made it! The MP4 file you wanted for so long is finally on your device, and now all it takes is opening it.
