[Android Q&A, Help & Troubleshooting] magikstar:
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edit: build.pop

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=mandfx

ro.build.display.id=MIUIV6

ro.build.version.incremental=V6.5.3.0.KHJCNCD

ro.build.version.sdk=19

ro.build.version.codename=REL

ro.build.version.release=4.4.4

ro.build.date=Thu Jun 4 20:19:13 CST 2015

ro.build.date.utc=1433420353

ro.build.type=user

ro.build.user=HB72K

ro.build.host=wcc-miui-ota-bd23

ro.build.tags=release-keys

ro.product.model=Y550-L03 4G MX

ro.product.brand=Ascend

ro.product.name=Y550-L03 4G MX

ro.product.device=hwY550-L03

ro.product.mod_device=hwY550-L03

ro.product.board=msm8916

ro.software.version=MIUI-CMCC01

ro.cmcc.protocol.test=

ro.cta.test=

ro.cmcc.test=

ro.product.cpu.abi=armeabi-v7a

ro.build.display.wtid=SW_S86047A1_V053_M22_MP_XM

ro.product.cpu.abi2=armeabi

ro.product.locale.language=es

ro.product.locale.region=ES

ro.wifi.channels=

ro.board.platform=msm8916

# ro.build.product is obsolete; use ro.product.device

ro.build.product=Y550-L03

# Do not try to parse ro.build.description or .fingerprint

ro.build.description=2014813-user 4.4.4 KTU84P HM2014813 release-keys

ro.build.fingerprint=Xiaomi/2014813/HM2014813:4.4.4/KTU84P/V6.5.3.0.KHJCNCD:user/release-keys

ro.build.characteristics=default

# end build properties

#

# from device/qcom/msm8916/system.prop

#

#

# system.prop for msm8916

#

#rild.libpath=/system/lib/libreference-ril.so

rild.libpath=/system/vendor/lib/libril-qc-qmi-1.so

rild.libargs=-d /dev/smd0

persist.rild.nitz_plmn=

persist.rild.nitz_long_ons_0=

persist.rild.nitz_long_ons_1=

persist.rild.nitz_long_ons_2=

persist.rild.nitz_long_ons_3=

persist.rild.nitz_short_ons_0=

persist.rild.nitz_short_ons_1=

persist.rild.nitz_short_ons_2=

persist.rild.nitz_short_ons_3=

ril.subscription.types=NV,RUIM

DEVICE_PROVISIONED=1

# Start in cdma mode

ro.telephony.default_network=9

debug.sf.hw=1

debug.egl.hw=1

debug.composition.type=c2d

persist.hwc.mdpcomp.enable=true

debug.mdpcomp.logs=0

debug.mdpcomp.idletime=1500

#Enable translucent status bar feature

persist.hwc.ptor.enable=true

dev.pm.dyn_samplingrate=1

persist.demo.hdmirotationlock=false

debug.sf.gpu_comp_tiling=1

persist.modemanager.logs=2

debug.modemanager.logs=2

#ro.hdmi.enable=true

#tunnel.decode=true

#tunnel.audiovideo.decode=true

#lpa.decode=false

#lpa.use-stagefright=true

#persist.speaker.prot.enable=false

#

# system props for the cne module

#

persist.cne.feature=4

#

# system props for the dpm module

#

persist.dpm.feature=3

#system props for the MM modules

media.stagefright.enable-player=true

media.stagefright.enable-http=true

media.stagefright.enable-aac=true

media.stagefright.enable-qcp=true

media.stagefright.enable-fma2dp=true

media.stagefright.enable-scan=true

mmp.enable.3g2=true

mm.enable.smoothstreaming=true

mm.disable.sec_smoothstreaming=true

media.aac_51_output_enabled=true

#codecs:(PARSER_)AAC AC3 AMR_NB AMR_WB ASF AVI DTS FLV 3GP 3G2 MKV MP2PS MP2TS MP3 OGG QCP WAV FLAC DIVX DIVXHD

mm.enable.qcom_parser=3407871

#

# system props for the data modules

#

ro.use_data_netmgrd=true

persist.data.netmgrd.qos.enable=true

#system props for time-services

persist.timed.enable=true

#

# system prop for opengles version

#

# 196608 is decimal for 0x30000 to report version 3

ro.opengles.version=196608

# System property for cabl

ro.qualcomm.cabl=0

#

# System props for telephony

# System prop to turn on CdmaLTEPhone always

telephony.lteOnCdmaDevice=1

persist.omh.enabled=false

#

# System props for bluetooh

# System prop to turn on hfp client

bluetooth.hfp.client=1

#Simulate sdcard on /data/media

#

persist.fuse_sdcard=true

#

#snapdragon value add features

#

ro.qc.sdk.audio.ssr=false

##fluencetype can be "fluence" or "fluencepro" or "none"

ro.qc.sdk.audio.fluencetype=none

persist.audio.fluence.voicecall=true

persist.audio.fluence.voicerec=false

persist.audio.fluence.speaker=true

#Set for msm8916

tunnel.audio.encode = false

#Buffer size in kbytes for compress offload playback

audio.offload.buffer.size.kb=32

#use VERY_HIGH_QUALITY for audio resampler

af.resampler.quality=4

#Enable offload audio video playback by default

av.offload.enable=false

#enable voice path for PCM VoIP by default

use.voice.path.for.pcm.voip=true

audio.offload.pcm.enable=false

audio.offload.disable=1

#

#System property for FM transmitter

#

ro.fm.transmitter=false

#enable dsp gapless mode by default

audio.offload.gapless.enabled=true

#Audio voice concurrency related flags

voice.playback.conc.disabled=false

voice.record.conc.disabled=false

voice.voip.conc.disabled=true

#Set read only default composition for USB

ro.sys.usb.default.config=diag,serial_smd,rmnet_bam,adb

audio.offload.disable=1

audio.offload.pcm.enable=false

# set max background services

ro.config.max_starting_bg=8

#property to enable user to access Google WFD settings

persist.debug.wfd.enable=1

#propery to enable VDS WFD solution

persist.hwc.enable_vds=1

ro.min_freq=800000

#PPPOE config enable

ro.config.pppoe_enable=1

#req2199,huangchensong.wt,20140830,MODIFY,show signal5 or signal4

ro.xiaomi.signalbars=5

# 140907 zhanghongyan for fingerprint

ro.com.google.clientidbase=android-xiaomi

# 141231 liuzhaofei for manul search network display 2G/3G/4G

persist.radio.rat_on=combine

#

# ADDITIONAL_BUILD_PROPERTIES

#

ro.miui.ui.version.code=4

ro.miui.ui.version.name=V6

persist.power.useautobrightadj=true

#persist.radio.multisim.config=dsds

persist.sys.mcd_config_file=/system/etc/mcd_default.conf

persist.sys.whetstone.level=2

keyguard.no_require_sim=true

ro.com.android.dataroaming=false

ro.com.android.dateformat=MM-dd-yyyy

ro.carrier=unknown

ro.vendor.extension_library=/vendor/lib/libqc-opt.so

persist.radio.apm_sim_not_pwdn=0

dalvik.vm.heapstartsize=8m

dalvik.vm.heaptargetutilization=0.75

dalvik.vm.heapminfree=2m

dalvik.vm.heapmaxfree=8m

ro.emmc.sdcard.partition=18

persist.sys.logkit.ctrlcode=1

persist.sys.dalvik.vm.lib=libdvm.so

net.bt.name=Android

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

ro.miui.has_real_blur=1

ro.miui.has_handy_mode_sf=1

persist.gps.qc_nlp_in_use=1

persist.loc.nlp_name=com.qualcomm.services.location

ro.gps.agps_provider=1

ro.pip.gated=0

ro.product.mod_device=Y550

ro.config.sms_received_sound=FadeIn.ogg

ro.config.sms_delivered_sound=MessageComplete.ogg

ro.com.android.mobiledata=false

ro.product.manufacturer=Xiaomi

ro.config.elder-ringtone=Angel.mp3

persist.sys.mitalk.enable=true

ro.config.ringtone=MI.ogg

ro.config.notification_sound=FadeIn.ogg

ro.config.alarm_alert=GoodMorning.ogg

persist.radio.custom_ecc=1

ro.haptic.vibrate_ex.enabled=1

sys.haptic.long.weak=0,40,10,30,20,-30,10,0,10

sys.haptic.long.normal=0,80,10,60,20,-70,10,0,10

sys.haptic.long.strong=0,120,10,100,20,-100,10,0,10

sys.haptic.down.weak=0,20,10,-50,10,0,10

sys.haptic.down.normal=0,50,10,-80,10,0,10

sys.haptic.down.strong=0,80,20,-80,10,0,10

sys.haptic.up.weak=0,20,30,-50,10,0,10

sys.haptic.up.normal=0,45,30,-100,10,0,10

sys.haptic.up.strong=0,80,30,-120,10,0,10

sys.haptic.tap.weak=0,20,20,-5,5,0,10

sys.haptic.tap.normal=0,45,30,-5,5,0,10

sys.haptic.tap.strong=0,80,40,-5,5,0,10

persist.sys.button_jack_profile=volume

persist.sys.button_jack_switch=0

dalvik.vm.heapgrowthlimit=96m

dalvik.vm.heapsize=128m

ro.sf.lcd_density=240

k1=v1

k2=v2

persist.sys.timezone=Europe/Minsk

ro.compiler.repo=ingbrzy

ro.compiler.version=jBART v2a build 20150330.01

ro.compiler.author=:V :P

#

# ADDITIONAL_TWEAKS

#

# Reinicio Rapido

persist.sys.purgeable_assets=1

# Incrementa la calidad del video al grabar

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

# Aceleracion de GPU

debug.sf.hw=1

# Mejora el rendimiento de la bateria

ro.ril.disable.power.collapse=1

pm.sleep_mode=1

wifi.supplicant_scan_interval=180

# Suena el timbre inmediatamente

ro.telephony.call_ring.delay=0

# Deshabilita el chequeo de errores

ro.kernel.android.checkjni=0

# Mejora el streaming de video

media.stagefright.enable-meta=true

media.stagefright.enable-scan=true

media.stagefright.enable-http=true

media.stagefright.enable-record=false

# Habilita almacenar el launcher en memoria

ro.HOME_APP_ADJ=1

# Apaga la proximidad rapido despues de la llamada

mot.proximity.delay=25 ro.lge.proximity.delay=25

# Mejoras 3G

ro.ril.hsxpa=2 ro.ril.gprsclass=10

ro.ril.hep=1 ro.ril.enable.dtm=1

ro.ril.hsdpa.category=10

ro.ril.enable.a53=1

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

ro.ril.htcmaskw1.bitmask=4294967295

ro.ril.htcmaskw1=14449

ro.ril.hsupa.category=5

# NetSpeed Tweaks

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

# 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

# Scrolling mas rapido

ro.max.fling_velocity=12000

ro.min.fling_velocity=8000

# Rendering Tweaks

debug.composition.type = c2d

debug.egl.hw = 1

debug.enabletr = true

debug.overlayui.enable = 1

debug.qctwa.preservebuf = 1

debug.performance.tuning = 1

debug.sf.hw = 1

dev.pm.dyn_samplingrate = 1

hw3d.force = 1

ro.config.disable.hw_accel = false

ro.fb.mode = 1

ro.sf.compbypass.enable = 0

ro.vold.umsdirtyratio = 20

persist.sys.composition.type = c2d

persist.sys.ui.hw = 1

video.accelerate.hw = 1

# Habilitar aceleraciÃ³n GPU

debug.sf.hw = 1

video.accelerate.hw = 1

debug.performance.tuning = 1

persist.sys.composition.type = gpu

debug.qc.hardware = true

debug.qctwa.statusbar = 1

debug.qctwa.preservebuf = 1

debug.egl.profiler = 1

debug.egl.hw = 1

debug.composition.type = gpu

hw3d.force = 1

ro.product.gpu.driver = 1

persist.sys.use_16bpp_alpha = 1

persist.sampling_profiler = 0

hwui.render_dirty_regions = false

hwui.disable_vsync = true

# Guarda alguna baterÃ*a sin reducir actuaciones

wifi.supplicant_scan_interval = 497

pm.sleep_mode = 1

power.saving.mode = 1

ro.ril.disable.power.collapse = 0

ro.vold.umsdirtyratio = 20

Guardar la baterÃ*a #

pm.sleep_mode = 1

ro.ril.disable.power.collapse = 0

profiler.force_disable_err_rpt = 1

profiler.force_disable_ulog = 1

dalvik.vm.checkjni = false

modo dalvik.vm.execution = int: jit

ro.ril.power_collapse = 1

power_supply.wakeup = enable

ro.mot.eri.losalert.delay = 1,000

ro.config.hw_fast_dormancy = 1

ro.config.hw_power_saving = 1

# Misc Ajustes (permite el servicio ADB)

persist.service.adb.enable = 1

# Control de sueÃ±o del sensor

ro.ril.sensor.sleep.control = 1

# Dispositivo arrancarÃ¡ mÃ¡s rÃ¡pido

persist.sys.shutdown.mode = hibernaciÃ³n

ro.config.hw_fast_dormancy = 1

ro.config.hw_quickpoweron = true

# Reducir el tiempo de marcaciÃ³n de salida

ro.telephony.call_ring.delay = 0

# Permitir purga de activos para liberar mÃ¡s memoria RAM

persist.sys.purgeable_assets = 1

# MÃ¡s RAM y aplicaciones libres cargan mÃ¡s rÃ¡pido

dalvik.vm.dexopt-flags = m = y

# MÃ¡s RAM

# Persist.sys.purgeable_assets = 1

persist.service.pcsync.enable = 0

persist.service.lgospd.enable = 0

# Rendimiento Aumento General

debug.performance.tuning = 1

# Aumentar algunos Rendimiento

ro.secure = 0

persist.sys.use_16bpp_alpha = 1

ro.product.gpu.driver = 1

ro.min.fling_velocity = 8000

# Reducir el tiempo de pantalla negro del sensor de proximidad

ro.lge.proximity.delay = 15

mot.proximity.delay = 15

ro.ril.enable.amr.wideband = 1

# TOQUE

touch.presure.scale = 0,001

# Mejor Desplazamiento de respuesta y velocidad

windowsmgr.max_events_per_sec = 150

ro.max.fling_velocity = 12000

ro.min.fling_velocity = 8000

ro.min_pointer_dur = 8

# Alisa UI

persist.service.lgospd.enable = 0

persist.service.pcsync.enable = 0

ro.ril.enable.a52 = 1

ro.ril.enable.a53 = 0

# Foto y la grabaciÃ³n de vÃ*deo de calidad Aumento de la cÃ¡mara

ro.media.dec.jpeg.memcap = 8000000

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

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

# Mejor intensidad de la linterna y la cÃ¡mara-flash calidad

ro.media.capture.flash = llevado

ro.media.capture.flashMinV = 3300000

ro.media.capture.torchIntensity = 40

ro.media.capture.flashIntensity = 70

ro.media.capture.maxres = 8m

ro.media.capture.fast.fps = 4

ro.media.capture.slow.fps = 120

ro.media.panorama.defres = 3264x1840

ro.media.panorama.frameres = 1280x720

ro.camcorder.videoModes = true

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

# Aumentar las medidas de volumen de llamada entrante

ro.config.vc_call_steps = 20

# Mejor llama calidad de voz.

ro.ril.enable.amr.wideband = 1

# Fuerza lanzador en la memoria

ro.HOME_APP_ADJ = 1

# Desactivar Bytecode VerificaciÃ³n

dalvik.vm.verify-cÃ³digo de bytes = false

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

# Dalvik.vm.dexopt-flags = m = y, v = n, o = v, u = n

# Mejora la CÃ¡mara y Video Resultados

ro.media.panorama.defres = 3264x1840

ro.media.panorama.frameres = 1280x720

ro.camcorder.videoModes = true

ime_extend_row_keyboard = true

ime_onehand_keyboard = true

ime_split_keyboard = true

ime_vibration_pattern = 0: 60

# Aumentar jpg de calidad al 100%

ro.media.enc.jpeg.quality = 100

# De informes de error Desactivar y registros

profiler.force_disable_err_rpt = 1

profiler.force_disable_ulog = 1

# Deshabilitar el envÃ*o de uso de datos

ro.config.nocheckin = 1

# Corregidos algunos problemas de aplicaciÃ³n (FC)

ro.kernel.android.checkjni = 0

# MMS APN reintentar temporizador ajustado en 2 segundos (si no podÃ*a `t ser enviado SMS / MMS, se reintenta despuÃ©s de 2 en lugar de 5 segundos)

ro.gsm.2nd_data_retry_config = max / _retries = 3, 2000, 2000, 2000

# Varios Ajustes para el rendimiento

ro.config.hw_menu_unlockscreen = false

persist.sys.use_dithering = 0

persist.sys.purgeable_assets = 1

dalvik.vm.dexopt-flags = m = y

ro.mot.eri.losalert.delay = 1,000

# Mejor navegaciÃ³n por Internet y la velocidad de descarga

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

net.tcp.buffersize.hspa = 6144,87380,524288,6144,163 84,262144

net.tcp.buffersize.lte = 524288,1048576,2097152,5242 88,1048576,2097152

net.tcp.buffersize.hsdpa = 6144,87380,1048576,6144,8 7380,1048576

net.tcp.buffersize.evdo_b = 6144,87380,1048576,6144, 87380,1048576

# Suave streaming de vÃ*deo y ajustar los medios de comunicaciÃ³n

media.stagefright.enable jugador = true

media.stagefright.enable meta = true

media.stagefright.enable-scan = true

media.stagefright.enable-http = true

media.stagefright.enable-aac = true

media.stagefright.enable-qcp = true

media.stagefright.enable record = true

# 3G de seÃ±al y velocidad retoques

ro.ril.hsxpa = 2

ro.ril.gprsclass = 10

ro.ril.hep = 1

ro.ril.enable.dtm = 1

ro.ril.hsdpa.category = 10

ro.ril.enable.a53 = 1

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

ro.ril.htcmaskw1.bitmask = 4294967295

ro.ril.htcmaskw1 = 14449

ro.ril.hsupa.category = 7

ro.ril.hsdpa.category = 10

ro.ril.enable.a52 = 1

ro.ril.set.mtu1472 = 1

persist.cust.tel.eons = 1

ro.config.hw_fast_dormancy = 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

net.ppp0.dns1 = 8.8.8.8

net.ppp0.dns2 = 8.8.4.4

net.wlan0.dns1 = 8.8.8.8

net.wlan0.dns2 = 8.8.4.4

net.eth0.dns1 = 8.8.8.8

net.eth0.dns2 = 8.8.4.4

net.gprs.dns1 = 8.8.8.8

net.gprs.dns2 = 8.8.4.4

# CRT

persist.sys.screen_off = crt

persist.sys.screen_on = ninguno

# Soporte para IPv4 e IPv6

persist.telephony.support.ipv6 = 1

persist.telephony.support.ipv4 = 1

#

ro.com.google.locationfeatures = 1

ro.com.google.networklocation = 1

htc.audio.alt.enable = 0

htc.audio.hac.enable = 0

# Wireless Tweaks

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 = 4.096 39.000 18.700

wifi.supplicant_scan_interval = 180

# AceleraciÃ³n de vÃ*deo activada y HW depuraciÃ³n

video.accelerate.hw = 1

debug.sf.hw = 1

debug.performance.tuning = 1

debug.egl.profiler = 1 # Medir el tiempo de renderizado en dumpsys adb shell gfxinfo

debug.egl.hw = 1

debug.composition.type = gpu superposiciones de hardware # Desactivar y el uso de la GPU para la composiciÃ³n de pantalla

# Logcat Desactivar

logcat.live = desactivado