I take it the sound is broken in some way. We do have a cheap fix for this. At under 10USD you use some USB Sound Card like https://www.amazon.com/Best-Sellers-Electronics-External-Sound-Cards/zgbs/electronics/3015427011
I'd pick the #1 unit and use the machine till it dies.
So basically I spilt coke on my laptop and i had to get my Motherboard cleaned and also bought a new keyboard. Then at one point the sound went crazy loud like really really loud and had that old statick sound and i couldn't do anything so i restarted it, then the sound icon was with a red cross saying no audo devices installed. After a couple of days somehow the sound came back and i found that that the position of the laptop fixes the sound. So after that i had a blue screen eror because of my hard disk so i took it to a local shop to get it fixed they fixed it and i also asked them about the sound problem, they said its something that is inside the motherboard or something they cannot get it fixed since they can't find parts or something so i was like ok. Now there is no sound at all no matter what i do. I'd like to ask do i have to get the whole motherboard changed ( i got tight budget) or could the problem be in some other part? or should I buy a new laptop that is mainly for gaming?