I applied the patch, but I lost the mic recording in videos and in mydicto application. I restored with the script and the recording came back thankfully. Afterwards I changed the last amixer commands in the script to amixer set Capture cap amixer set Capture 100% and run it again. This time I did not loose mic recording and I 'll leave it as it is for the moment checking what has actually changed in performance and battery usage. I am using power kernel but I do not believe it has anything to do with the mic, working or not. I also need to understand better amixer parameters. Keep up the good work.