[Guide]Build.prop Tweaks - Android Q&A, Help & Troubleshooting

I am back with my new guide of build.prop tweaks. This tweaks has been tested on Galaxy S Duos Gt S7562 and has been working fine. Since these tweaks doesn't relate with the device model so you can try the tweaks on your device.
Tweaking build.prop may also completly brick your phone?
Remember I am not responsible for any damage to your device and if you point your finger at me i will laugh at you...??
Spoiler
#Qualcomm tweaks
#
com.qc.hardware=1
debug.qc.hardware=true
debug.qctwa.preservebuf=1
debug.qctwa.statusbar=1
#UI general tweaks
#
persist.service.lgospd.enable=0
persist.service.pcsync.enable=0
hw3d.force=1
windowsmgr.max_events_per_sec=90
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
touch.presure.scale=0.001
debug.fb.rgb565=1
ro.wmt.blcr.enable=0
#General GPU tweaks
#
debug.composition.type=gpu
debug.egl.hw=1
debug.sf.hw=1
ro.sf.compbypass.enable=0
debug.egl.profiler=1
debug.enabletr=true
persist.sys.composition.type=gpu
persist.sys.use_16bpp_alpha=1
persist.android.strictmode=0
ro.min_pointer_dur=1
#Power saving tweaks
#
persist.sys.shutdown.mode=hibernate
ro.config.hw_quickpoweron=true
ro.ril.disable.power.collapse=1
ro.config.hw_fast_dormancy=1
ro.config.hw_power_saving=true
#Call quality tweaks
#
ro.ril.enable.amr.wideband=1
persist.cust.tel.eons=1
ro.ril.gprsclass=10
ro.ril.hsdpa.category=8
ro.ril.hsupa.category=6
ro.ril.hsxpa=1
#Wireless speed tweaks
#
wifi.supplicant_scan_interval=180
net.ipv4.ip_no_pmtu_disc=0
net.ipv4.route.flush=1
net.ipv4.tcp_ecn=0
net.ipv4.tcp_fack=1
net.ipv4.tcp_mem=187000 187000 187000
net.ipv4.tcp_moderate_rcvbuf=1
net.ipv4.tcp_no_metrics_save=1
net.ipv4.tcp_rfc1337=1
net.ipv4.tcp_rmem=4096 39000 187000
net.ipv4.tcp_sack=1
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_wmem=4096 39000 187000
net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,163 84,256960
# Battery Tweaks
pm.sleep_mode=1
ro.ril.disable.power.collapse=1
# Kernel Tweaks
ro.kernel.checkjni=0
# Ram Tweaks
persist.sys.purgeable_assets=1
# Google DNS
net.dns1=8.8.8.8
net.dns2=8.8.4.4
net.rmnet0.dns1=8.8.8.8
net.rmnet0.dns2=8.8.4.4
# Better scrolling responsiveness
windowsmgr.max_events_per_sec=90
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
# Better Touch Responsiveness
touch.presure.scale=0.001
# Rapid Boot Technology 1.1 (Reduces bootup time)
persist.sys.shutdown.mode=hibernate
ro.config.hw_fast_dormancy=1
ro.config.hw_quickpoweron=true
# Smoothens UI
persist.service.lgospd.enable=0
persist.service.pcsync.enable=0
#3G TurboCharger Enhancement
#
net.dns1=8.8.8.8
net.dns2=8.8.4.4
net.tcp.buffersize.default=6144,87380,110208,6144,16384,110208
net.tcp.buffersize.wifi=262144,524288,1048576,262144,524288,1048576
net.tcp.buffersize.lte=262144,524288,3145728,262144,524288,3145728
net.tcp.buffersize.hsdpa=6144,262144,1048576,6144,262144,1048576
net.tcp.buffersize.evdo_b=6144,262144,1048576,6144,262144,1048576
net.tcp.buffersize.umts=6144,87380,110208,6144,16384,110208
net.tcp.buffersize.hspa=6144,87380,262144,6144,16384,262144
net.tcp.buffersize.gprs=6144,8760,11680,6144,8760,11680
net.tcp.buffersize.edge=6144,26280,35040,6144,16384,35040
#PMP
#
davilk.vm.heapsize=192m
davilk.vm.heapstartsize=8
davilk.vm.heapgrowthlimit=64m
windowsmgr.max_events_per_sec=90
ro.ril.gprsclass=12
debug.performance.tuning=1
video.accelerate.hw=1
ro.media.dec.jpeg.memcap=12000000
ro.media.enc.hprof.vid.bps=12000000
persist.sys.use_dithering=0
dalvik.vm.startheapsize=8M
dalvik.vm.dexopt-flags=m=y
dalvik.vm.execution-mode=init:jit
ro.kernel.android.checkjni=0
ro.kernel.checkjni=0
ro.telephony.call_ring.delay=0
pm.sleep_mode=1
persist.sys.purgeable_assets=1
media.stagefright.enable-record=false
ro.ril.hep=1
ro.mot.eri.losalert.delay=1000
ro.ril.enable.dtm=1
ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=28
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=9
### End of new tweaks ###
PRESS THANKS
REGARDS
banerjeeayan1996™

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So, sorry, but what to do with those lines? How can it be use by me? Teach me master. ?

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How to tweak.
What to do with this line?

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Dr Grato said:
So, sorry, but what to do with those lines? How can it be use by me? Teach me master.
Click to expand...
Click to collapse
Found it how.
http://www.viraltecho.com/build-prop-tweaks-for-jellybean-kitkat-lollipop-android-smartphones/