[MOD][GUIDE]disable backlight and touch of HW button

moddroid · May 29, 2013

hi,
this little guide explain how to disable completely ( brightness and touch) of hardware buttons.

PRE-REQUISITES:
-ROOT
-file manager with root permission
-terminal emulator

HOW TO:

-DISABLE SOFT KEYS

-with file manager open
/system/build.prop
and add this line at the end of file

Code:

 qemu.hw.mainkeys=0

(when you want to restore change 0 to 1)

-create a copy of
/system/usr/keylayout/touch_dev.kl
on you sdcard (for restore)

-with your file manager open
/system/usr/keylayout/touch_dev.kl
go to the end of file and under:

Code:

#x3 synaptics touch

delete the line incoming with:

Code:

key158
key139
key102

and save the file!

!!WARNING!! this disable the keys!

- DISABLE SOFT KEYS BACKLIGHT

-on terminal emulator with root permission insert this code:

Code:

echo 0  >/sys/devices/platform/button-backlight/leds/button-backlight/brightness

and

Code:

echo 0  >/sys/devices/platform/button-backlight/leds/button-backlight/max_brightness

-YOU ARE DONE!!

sometimes the brightness are restored but you can do a script to do this 2 lines of code at startup with Rom toolbox

if i help you click thanks

)

Inviato dal mio LG-P880 usando XDA Premium HD app

laufersteppenwolf · May 29, 2013

just a suggestion, you should add a line to build.prop that enables the virtual buttons then

'cause if people do this without having a "backup plan", they can be doomed

FunkyRasta · May 30, 2013

IMO it has no sense for me

navbar just takes screen space and our touch buttons are just perfect.

Sent from my LG-P880 using xda app-developers app

moddroid · May 30, 2013

laufersteppenwolf said:
just a suggestion, you should add a line to build.prop that enables the virtual buttons then

'cause if people do this without having a "backup plan", they can be doomed

Yes i think you have a good idea xD

Inviato dal mio LG-P880 usando XDA Premium HD app

@non4 · May 31, 2013

FunkyRasta said:
IMO it has no sense for me navbar just takes screen space and our touch buttons are just perfect.

Sent from my LG-P880 using xda app-developers app

One use would be for gaming, as it eliminates kicking yourself to home screen with the buttons and getting disconnected. I do this often when I try to throw a grenade on mc4

software buttons and adequate warnings should indeed be added to this guide, but thanks!

Sent from my rooted P880

Cheetah1024 · Oct 22, 2013

If u go one step further (like me ^^) you can use the home button to go to standby... Waking it doesnt work, cause its touchscreen...

Sent from my LG P880

gerciolisz · Oct 23, 2013

if u go another step u can use xposed framework module for remap this three buttons for what u want

gingerboy92 · Oct 25, 2013

you can do this on MIUI without any mod/3rd party tools. i don't know why such options is not available CM/AOSP based roms.

baxtex · Feb 10, 2014

Can't seem to do this, no permission to edit in the build prop file, can't change permission either :s

abhi08638 · Feb 10, 2014

baxtex said:
Can't seem to do this, no permission to edit in the build prop file, can't change permission either :s

What file manager are you using and if check if the the file manager has permission to read and write to /system partition

Sent from my LG-P880 using xda app-developers app

baxtex · Feb 10, 2014

abhi08638 said:
What file manager are you using and if check if the the file manager has permission to read and write to /system partition

Sent from my LG-P880 using xda app-developers app

Rom toolbox and im quite sure it around do the job. :s

abhi08638 · Feb 10, 2014

baxtex said:
Rom toolbox and im quite sure it around do the job. :s

Not sure about that one
1.try es file explorer and report back
Or
2. If you're on kitkat you might need to switch to supersu and not superuser

Sent from my LG-P880 using xda app-developers app

baxtex · Feb 10, 2014

abhi08638 said:
Not sure about that one
1.try es file explorer and report back
Or
2. If you're on kitkat you might need to switch to supersu and not superuser

Sent from my LG-P880 using xda app-developers app

Tried es, same thing. Im on KK but Superuser is built in.. Downloaded Supersu but it can't update.

balloon27 · Feb 10, 2014

baxtex said:
Tried es, same thing. Im on KK but Superuser is built in.. Downloaded Supersu but it can't update.

If all you wish to do is disabling the backlight of the buttons, look for 'Backlight' under Buttons in the Settings menu, or, if you can't find it, try this.

abhi08638 · Feb 11, 2014

baxtex said:
Tried es, same thing. Im on KK but Superuser is built in.. Downloaded Supersu but it can't update.

Try flashing the supersu update zip. You can Google it.
Also do you want to completely disable the buttons?

Sent from my LG-P880 using xda app-developers app

gingerboy92 · Feb 14, 2014

try this. didn't made this, just found an xda thread with all the files, so downloded it and modded it to work on our phones. just changed the files list inside the script, didn't do much. the bad news is, i only changed the file to enable virtual keys and disable capacitive keys, didn't changed the files to do the opposite.

try it.

http://xdaforums.com/showthread.php?p=31552585#post31552585

khan.cross · Nov 17, 2017

- DISABLE SOFT KEYS BACKLIGHT

-on terminal emulator with root permission insert this code:
Code:
echo 0 >/sys/devices/platform/button-backlight/leds/button-backlight/brightness
and
Code:
echo 0 >/sys/devices/platform/button-backlight/leds/button-backlight/max_brightness
-YOU ARE DONE!!

Can you explain that more detailed? What does it mean 'on terminal emulator'?
In which file do I need to insert the above code?

I just want to turn of the lights of the softkeys, to save battery. Thanks

Dowper · Mar 18, 2018

gingerboy92 said:
try this. didn't made this, just found an xda thread with all the files, so downloded it and modded it to work on our phones. just changed the files list inside the script, didn't do much. the bad news is, i only changed the file to enable virtual keys and disable capacitive keys, didn't changed the files to do the opposite. try it.

http://xdaforums.com/showthread.php?p=31552585#post31552585

Thank you very much, this really helped me. But it will be perfect if the backlight of the touch buttons was turned off and also the vibration of the virtual buttons was turned off. But anyway, thank you again. :good:

[MOD][GUIDE]disable backlight and touch of HW button

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