Just open the LG pad, and rip the speaker off the circuit board. Lol I left instructions and a picture on
amazon.com.
(copied here just for kicks)
View attachment 23757
Component one is the destroyed buzzer. It was covered in that plastic adhesive mentioned above, I carefully used a non-sharp stylus to break the adhesive as best I could, then just grabbed the box with pliers and pulled it right off. It obviously left stuff behind, but at least now the speaker doesn't work.
Component two is another box that is covered in that white adhesive. Somehow during my testing, I thought that component was generating the sound, so I pulled it off, and that's what broke it (see post 1 in this discussion). I had to just solder in a connection, and it's working OK. Don't touch this part... learn from my mistake!
A note... you should be fine to pull off the black box. That's what I did, and it's fine. According to regulatory filings I found (that I don't want to go digging for again), the buzzer is the end of that circuit segment. Removing the buzzer just moves the end of the circuit up a little bit, it doesn't actually affect anything. If you feel more comfortable, you can stick in a small screwdriver and destroy the disks, but removing the buzzers "black box" is not electronically unsafe to the circuit board.