Android Phone - Build.prop Tweaks (Root Only)

An extensive list of build.prop tweaks you might want to fiddle with, if your android phone is rooted. For editing build.prop file, you need to download es file explorer from play store, then mount the system as R/W since the file is /system/build.prop. Before starting, take a backup of your build.prop file.

There are lots of things that you can change through your build.prop and this article is by no means an exhaustive list. Rather, it’s a collection of tweaks that I’ve used over the years, focusing on my favorites. Let’s jump right in!
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There are a bunch of other tweaks that have to do with cellular voice and data. I haven’t had much success with them over the stock settings. However, your mileage may vary.
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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=3264x1840
ro.media.panorama.frameres=1280x720
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 dumpsys gfxinfo
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. (Got from GamerzROM, memory management):

persist.sys.purgeable_assets=1

Does your phone take a few seconds before it starts to ring? Eliminate that delay by adding these lines:

ro.telephony.call_ring.delay=0
ring.delay=0

Does your phone tell you that you need to purchase an upgrade to your plan whenever you try and tether? Depending on your carrier, this line may help:

net.tethering.noprovisioning=true

Do you want your lockscreen and launcher screens to rotate just like other apps do? Add these lines:

log.tag.launcher_force_rotate=VERBOSE
lockscreen.rot_override=true

One of my absolute favorite build.prop tweaks let me lock the launcher in memory. This meant that switching back to the launcher from any app was fast because the launcher was still in memory – it didn’t have to be loaded again, which could take a few seconds. Unfortunately, this tweak worked up through Gingerbread, but doesn’t work in Ice Cream Sandwich or above. I’ve included it here because (in addition to being one of my favorite tweaks) this is still a tweak that many recommend applying (even in Lollipop), despite the fact that it no longer works.

ro.HOME_APP_ADJ=1

Another tweak that’s no longer used the way it was previously has to do with windowsmgr. Modern builds of Android lock the “smoothness” to 60fps. The FPS multiplied by 1.5 gives you the recommended value of this setting. Many sources still suggest setting this to 300 or even higher to help make things look “smoother”. That’s no longer the case, so setting this value above 90 (60 * 1.5) will likely result in higher processing demands with no visible improvement – and will probably slow you down.

windowsmgr.max_events_per_sec=90

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