[Q] D620r headset volume hack failed

[theokent]

Hello guys, I have tried many times to edit the /system/etc/mixer_paths.xml in order to increase the volume of the headphones (ones plugged in the 3.5mm jack on top) of my LG G2 D620r, but every time I did, when I rebooted, it stuck at the LG logo.

these are the values in mixer_paths.xml I fiddled with: from 14 (original value) to 18
<ctl name="HPHL Volume" value="18" />
<ctl name="HPHR Volume" value="18" />

Has anyone tried it and succeeded?

 

[steffenbakke]

I myself prefer using viper4android or pure audio to boost the sound in headphones... I don't know what happened in your case. I'd suggest to flash a kdz tho

Sent from my LG-D620 using XDA Premium 4 mobile app

 

[Vagelis1608]

Use g2 tweakbox

Sent from my GT-I5500 [CM11]

 

[theokent]

Don't worry, the phone is flashed with LG-stock KDZ and fully operational, really don't understand how a parameter of that sort would result to a stuck-on-boot situation.

I myself prefer using viper4android or pure audio to boost the sound in headphones... I don't know what happened in your case. I'd suggest to flash a kdz tho
Sent from my LG-D620 using XDA Premium 4 mobile app

I don't think I want to tweak my bootloader or install CWM just yet.
So I cannot install what you suggested

Use g2 tweakbox
Sent from my GT-I5500 [CM11]

I don't seem to be able to find a way or setting to boost the output level of the headphones using the G2 Tweakbox, although I found many other helpful settings like the navbar height changer :good:

 

[steffenbakke]

I don't think I want to tweak my bootloader or install CWM just yet.
So I cannot install what you suggested

Viper 4 android only requires root doesn't it?

Sent from my LG-D620 using XDA Premium 4 mobile app

 

[theokent]

Viper 4 android only requires root doesn't it?

Sent from my LG-D620 using XDA Premium 4 mobile app

You're right!
I installed Viper4android and it worked, tweaked the settings and I have higher volume than before, not much but it's enough. Thanks a lot!

 

[theokent]

Anyone with knowledge of developing, can make a successful edit or help me edit the original mixer_paths.xml file that will not stuck on boot?

It is really frustrating when I try to listen music or talk to the phone using the AUX port in my car to have to turn the volume all the way up

I have attached the original mixer_paths.xml
https://www.dropbox.com/s/na5bqqsuyi4k1aw/mixer_paths - original.xml?dl=0

So far I have tried to change parameters in:

<path name="headphones-lite"><ctl name="SLIM RX1 MUX" value="AIF1_PB"/><ctl name="SLIM RX2 MUX" value="AIF1_PB"/><ctl name="SLIM_0_RX Channels" value="Two"/><ctl name="RX1 MIX1 INP1" value="RX1"/><ctl name="RX2 MIX1 INP1" value="RX2"/><ctl name="CLASS_H_DSM MUX" value="RX_HPHL"/><ctl name="RDAC3 MUX" value="DEM2"/><ctl name="HPHL DAC Switch" value="1"/><ctl name="HPHL Volume" value="15"/><ctl name="HPHR Volume" value="15"/><ctl name="RX1 Digital Volume" value="58"/><ctl name="RX2 Digital Volume" value="58"/>

HPHL Volume" value="15" and HPHR Volume" value="15"

both to a higher value (but not over 19)

and

<ctl name="HPHL Volume" value="14"/><ctl name="HPHR Volume" value="14"/>

in the mixer settings on the top to a higher value (but not over 19)

but not both at the same time
Sorry to say that every change in this file I made resulted in a soft-brick

 

[troske]

solution

just unmount system r/w to r/o after applying changes then reboot