How to Tweaks Android Build.Prop For Rom Developers And Android Users

Android – build.prop tweaks (Root Only)

Following is an extensive list of build.prop tweaks you might want to fiddle with, if your
android was rooted For editing build.prop file, you need to Have a File explorer that supports ROOT- you can start with File Manager; Root Explorer would be more helpful but latter is a paid app) Mount the system as R/W – since the file is /system/build.prop (Root

Explorer allows that, but there are

other ways)

Update : You can have an all-in-one app, Script Manager for the above

Update 2 : Save yourself all this and get

Build.prop Editor (still need ROOT permissions, that’s never gonna get away :/ and BusyBox)

Get going:

1. 1. Explore/Find the build.prop file
2. 2. Make a Backup
3. 3. Check the backed up file
4. 4. Make a Backup again , this time to a different folder
5. 5. Use the following list to modify values

1. Locks default launcher app in memory. Only
use with light launchers

ro.HOME_APP_ADJ=1

2. Improves audio and video recording quality
ro.media.enc.jpeg.quality=100

ro.media.dec.jpeg.memcap=8000000

ro.media.enc.hprof.vid.bps=8000000

ro.media.capture.maxres=8m

ro.media.panorama.defres=3264×1840

ro.media.panorama.frameres=1280×720

ro.camcorder.videoModes=true

ro.media.enc.hprof.vid.fps=65

3. Faster streaming videos

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=true

media.stagefright.enable-http=true

media.stagefright.enable-rtsp=true

media.stagefright.enable-record=false

4. Video acceleration and HW debugging.

debug.composition.type can also be changed to

cpu or mdp.

debug.sf.hw=1

debug.performance.tuning=1

video.accelerate.hw=1

debug.egl.profiler=1 # Measure

rendering time in adb shell dumpsysgfxinfo

debug.egl.hw=1

debug.composition.type=gpu # Disable

hardware overlays and use GPU for

screen compositing

5. Disables built in error reporting.

profiler.force_disable_err_rpt=1

profiler.force_disable_ulog=1

6. Better net speeds.

net.tcp.buffersize.default=4096,87380,
256960,4096,16384,256960

net.tcp.buffersize.wifi=4096,87380,
256960,4096,163 84,256960

net.tcp.buffersize.umts=4096,87380,
256960,4096,163 84,256960

net.tcp.buffersize.gprs=4096,87380,
256960,4096,163 84,256960

net.tcp.buffersize.edge=4096,87380,
256960,4096,163 84,256960

7. Saves power. ro.mot.eri.losalert.delay=1000

could brake tethering.

ro.ril.power_collapse=1

pm.sleep_mode=1

wifi.supplicant_scan_interval=180

ro.mot.eri.losalert.delay=1000

8. 3G tweaks.

ro.ril.hep=0

ro.ril.hsxpa=2

ro.ril.gprsclass=12

ro.ril.enable.dtm=1

ro.ril.hsdpa.category=8

ro.ril.enable.a53=1

ro.ril.enable.3g.prefix=1

ro.ril.htcmaskw1.bitmask=4294967295

ro.ril.htcmaskw1=14449

ro.ril.hsupa.category=6

9. Disables logcat

logcat.live=disable

10. Screen recognizes only two fingers.

ro.product.multi_touch_enabled=true

ro.product.max_num_touch=2

11. Support for ipv4 and ipv6.

persist.telephony.support.ipv6=1

persist.telephony.support.ipv4=1

12. Phone rings immediately.

ro.telephony.call_ring.delay=0

ring.delay=0

13. Disables blackscreen issue after a call.

ro.lge.proximity.delay=25

mot.proximity.delay=25

14. Better scrolling.

windowsmgr.max_events_per_sec=150

ro.min_pointer_dur=8

ro.max.fling_velocity=12000

ro.min.fling_velocity=8000

15. Better signal.

persist.cust.tel.eons=1

16. Better call voice quality.

ro.ril.enable.amr.wideband=1

17. Better signal.

ro.config.hw_fast_dormancy=1

18. Faster boot.

ro.config.hw_quickpoweron=true

19. Disables error checking.

ro.kernel.android.checkjni=0

ro.kernel.checkjni=0

20. Dalvik Virtual Machine tweaks.

dalvik.vm.checkjni=false

dalvik.vm.dexopt-data-only=1

dalvik.vm.heapstartsize=5m

dalvik.vm.heapgrowthlimit=48m

dalvik.vm.heapsize=64m

dalvik.vm.verify-bytecode=false

dalvik.vm.execution-mode=int:jit

dalvik.vm.lockprof.threshold=250

dalvik.vm.dexopt-flags=m=v,o=y

dalvik.vm.stack-trace-file=/data/anr/

traces.txt

dalvik.vm.jmiopts=forcecopy

21. Disables locating. Also delete /system/app/

networklocation.apk and /system/framework/

com.android.location.provider.jar

ro.com.google.locationfeatures=0

ro.com.google.networklocation=0

22. Disables sending of usage data.

ro.config.nocheckin=1

23. Better image quality, lower performance.

persist.sys.use_dithering=1

24. Disable notification while adb is active

persist.adb.notify=0

25. Change LCD density – My Favorite

– Default value is 240. Don’t forget

to install a patched market after

changing it.

ro.sf.lcd.density=240

26. MMS APN retry timer set to 2 sec( if SMS/

MMS couldn`t be sent, it retries after 2 instead
of 5 seconds).

ro.gsm.2nd_data_retry_config=max/

_retries=3, 2000, 2000, 2000

27. Key lights stay on while screen is on.

ro.mot.buttonlight.timeout=0

28. Disable strict mode checking.

persist.android.strictmode=0

29. Remove FPS cap. May be unstable – better
have it activated

debug.gr.swapinterval=0

30. Disable notification sound for SD storage
insert

persist.service.mount.playsnd=0

31. Enable display dithering

persist.sys.use_dithering=1

32. More volume steps in call.

ro.config.vc_call_steps=20

33. Phone will not wake up from hitting

volume rocker.

ro.config.hwfeature_wakeupkey=0

34. Lock app in memory.

sys.keep_app_1=com.your.app.app

35. Enables MTP mode.

persist.sys.usb.config=mtp

36. Others

persist.sys.shutdown.mode=hibernate

debug.kill_allocating_task=0

persist.sys.ui.hw=1

ro.debuggable=1

ro.config.disable.hw_accel=false

debug.enabletr=true

37. Google DNS Tweak

net.rmnet0.dns1=8.8.8.8

net.rmnet0.dns2=8.8.4.4

net.dns1=8.8.8.8

net.dns2=8.8.4.4

38. Allow purging of assets.
persist.sys.purgeable_assets=1

More coming soon…

Credits:

AOKP

CM (CyanoGenMod)

Devs