I have an LS980 that I typically run the stock based ROM on and sometimes mess around with kernel. As of two days ago, my device while running Slimkat build 7.4 started making sounds (sounds like transformers lol) when the CPU scales during music playback, whether it be through the speakers or earphones. I thought it might be the kernel on the ROM so I reflashed my Stock ROM and stock kernel and the problem still persists!!! I think it is now a hardware issue.
Anyone know what I can do to fix it? I'm about to return completely to stock to find out. Has anyone else experienced this before?
Sound it makes is like this. https://www.youtube.com/watch?v=mHQIiB4dJfs#t=26
EDIT: Doing a full reset (.tot method) fixed my issue.