S6 Edge speaker problem

Hello,
I recently tried to replace...well...basically everything on my S6 edge. It was severely damaged, and i've been wanting to learn how to repair phones for a while now. Anyways,  the phone's speaker is no longer working. I've bought two speakers and tried both of them and neither fixed the issue. I've tried resetting and wiping the cache as well. I've also tried installing the default ROM (i cant remember the program, but it's the most known one out there). I've tried everything that I know of and it still doesn't work.


If this is needed, I go to google music app thats default on there and try to play "over the horizon" song. No sound.

I've replaced this on the phone:
Motherboard

LCD

Battery
2x Speakers

Thanks