I’m using a Fairphone 2 with fairphone open OS, under android 7, (build-number: fp2_sibon-userdebug 7.1.2 19.11.2 sibon-24df0be9), and my battery loses systematically 50% to 90% overnight, and after having tried all sorts of things to stop it, my brother checked in a terminal (using Termux) with the
top command which processes were using the CPU. A process named irq/288-wcd9xxx uses 15-20% of the CPU permanently, which could explain why my battery simply dies in 12 hours. Here’s a screenshot of what I get.
kill -9has absolutely no effect on it (it seems to work when running the command, but the process is still there afterwards), does anyone have any idea about what it is, and how to kill it, or stop it?
Thanks a lot!