Increase the volume of conversational dynamics: Looking for ROOT rights! Go in
/ system / etc / scroll down and look for the file
codec_pga.xml Open with any editor, scroll down and look for the code:
<profile name = "voice-earpiece">
<pga name = "EAR Playback Volume" bit = "0" />
<pga name = "DACL Playback Volume" bit = "4" />
<pga name = "VBC DACL DG Set" bit = "16" />
<pga name = "VBC DACL DG Switch" bit = "31" />
</ profile>
We need only the second line
EAR Playback Volume change parameter
bit = "0" to bit = "1" (or bit = "2"). Save, reboot the device and use.
p.s. You can put more, the parameter sets the max volume, i.e. a shift, but then wheezing is possible. In any case, the volume during a call can be turned down with the button. 10 times think and check the volume, hoarse or broken speaker will be on your conscience, all at your own peril and risk.
Just in case, I spread the original file Attached file
codec_pga.zip Thanks for the user instructions Evil