===========================
buzzzzzzzzzzz
well I have solution if u all wanna try it.
i promise the predrive volume will be always to 100% even after a call and plugin and plugout of ear or headphones and even after reboot of ur nokia N9. 1st u have to remove tweak s : 4 for changing predrive volume to 100% after reboot from N9QT
the methods are: goto this path "/usr/share/pulseaudio/alsa-mixer/paths" in ur phone root without the quote and select 'nokia-dfl61-twl4030-output-ihfandheadset.conf and nokia-dfl61-twl4030-output-headset-call.conf and nokia-dfl61-twl4030-output-ihf.conf'-this three files.
copy down all three files into your system and open it using any editor (eg c-free 5.0 "in case of mine")
and edit the line with [Element PreDriv]
volume = 2' for all three files
change volume = (2 to 3) for all three file and Yo except value 3 1 n 2 if u input else (100, 20 any value the u have to rum n9 terminal every after each boot up to fix alsamixer predrive to 100% manually
coz in the Element PreDriv
volume = 0(means 0 u know it logical)
volume = 1(means 33% not 10 or else)
volume = 2(means 67% default) and volume = 3(is 100%..
u don't believe ya am sure u ain't check urself try it..frns.. "DONNOT CHANGE ANY OTHER VALUES OR ELSE WILL end up with no sound if mistaken "
after making change save the file as it is no further change if u wanna get irritate with ur n9 then change more value as ur wish..
now the real things.. how to feed this values into the phone root files..
??? any clue..
use 'filebox root' from N9qt of u can run terminal command if u know how to run copy n replace command in terminal.. (yea every1 knows kidding:P)
"if u get ur phone with NO sound then its not my fault. coz all u did is error in the file editing am not responsible for any.."