[GUIDE][DISCUSSION] Saving battery on CM9. Disable Haptic Feedback+Hw Button Light

HardLight

Senior Member
Nov 26, 2012
240
1,703
0
Here are tips which will highly extended our P500 battery life



Haptic Feedback (vibrate when unlocking phone from lockscreen,
dragging apps to desktop, selecting photos in gallery, using some apps or games, etc.)
is a hardware process that uses lot of energy so its big battery drainer.

To disable faptic feedback in CM9 and all ROMs based on it:
Go to Settings>Sound>Quiet Hours>check Enable quiet hours>set start from 00:00 to end 23:59 and check Disable haptic feedback.



It will disable the haptic feedback for all apps. :)


Hardware Buttons Backlight is another battery sucker and I think for most time it's totally useless.

To disable it just flash attached zip.

EDIT: Method with changing value from 255 to 0 in max_brightness manually doesn't work properly,
because it resets to 255 every time restarting the phone.

Code:
#!/system/bin/sh
echo 0 >sys/class/leds/button-backlight/max_brightness
chmod444 /system/class/leds/button-backlight/max_brightness
If you have another battery saving tips, please share it to all community ;)
 

Attachments

Last edited:

HardLight

Senior Member
Nov 26, 2012
240
1,703
0
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
persist.sys.shutdown.mode=hibernate
wifi.supplicant_scan_interval=150

add this to ur build.prop to get better deep sleep...
Thx really good build.prop tweaks :good:
Going to try them on new cm-9.1.4-GENETICS :D
 

FitAmp

Senior Member
Mar 21, 2012
1,425
681
0
25
Terrace
Hardware key backlight reset back to normal after reboot even setting to read only. A script on boot would make it apply everyboot (init.d)

Sent from my LG-P500h using xda app-developers app
 

HardLight

Senior Member
Nov 26, 2012
240
1,703
0
Yes, I noticed that too, so edited 1st post. Put script in init.d and it won't reset to normal anymore ;)

Sent from my LG-P500 using xda premium
 
Our Apps
Get our official app!
The best way to access XDA on your phone
Nav Gestures
Add swipe gestures to any Android
One Handed Mode
Eases uses one hand with your phone