Sound problem when calling solved by custom ROM?

[slole]

My friend has a problem with his galaxy s4 active. His microphone and speaker work perfectly when testing with music and audio recording. But when calling someone the speaker is dead silent and the other person can't hear him. I saw a bunch of threads where they reheat the audio IC and so on. He is running android 5.0.1. Now my question is: is this a software problem and can it be fixed by flashing CM? Thanks for any and all replies.

Edit: If you're wondering I know how to flash custom ROMs and have a lot of experience doing that.

 

[Bykus]

I have the same problem, no sound when call via telephone app. Videos and music are prefect to. The best is when I use WahtsApp and call to someone everything is ok. So I think hardware is ok but something is blocking standard telephone application. I reset my phone (wipe) and reload rom but the problem wasn't gone.
I'm still looking for any solution so maybe someone can help.

Tx

 

[Bykus]

Samsung headphones are not working too.

 

[ungrillao]

Solution:
http://forum.xda-developers.com/gal...ute-person-t3169864/post62150085#post62150085

And post 7

 

[slole]

Solution:
http://forum.xda-developers.com/gal...ute-person-t3169864/post62150085#post62150085

And post 7

Thanks for the reply I was thinking it is a software glitch considering sound recording still works.

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