[T-Mobile Samsung Galaxy S 4] epsix:
Are you using MK9 version ROM?

Here's the build.prop of MK9

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=JSS15J

ro.build.display.id=JSS15J.I9505XXUEMK9

ro.build.version.incremental=I9505XXUEMK9

ro.build.version.sdk=18

ro.build.version.codename=REL

ro.build.version.release=4.3

ro.build.date=Thu Nov 21 15:20:53 KST 2013

ro.build.date.utc=1385014853

ro.build.type=user

ro.build.user=se.infra

ro.build.host=SEP-126

ro.build.tags=release-keys

ro.product.model=SGH-M919

ro.product.brand=samsung

ro.product.name=jfltetmo

ro.product.device=jfltetmo

ro.product.board=MSM8960

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=samsung

ro.product.locale.language=en

ro.product.locale.region=GB

ro.wifi.channels=

ro.board.platform=msm8960

# ro.build.product is obsolete; use ro.product.device

ro.build.product=jfltetmo

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

ro.build.description=jfltetmo-user 4.3 JSS15J I9505XXUEMK9 release-keys

ro.build.fingerprint=samsung/jfltetmo/jfltetmo:4.3/JSS15J/I9505XXUEMK9:user/release-keys

ro.build.characteristics=default

# Samsung Specific Properties

ro.build.PDA=I9505XXUEMK9

ro.build.hidden_ver=I9505XXUEMK9

ro.build.changelist=2082040

ro.product_ship=true

ro.chipname=apq8064

# end build properties

#

# system.prop for surf

#

#

# START system.prop for RIL

#

rild.libpath=/system/lib/libsec-ril.so

ro.sf.lcd_density=480

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

persist.radio.lte_vrat_report=1

#

# END system.prop for RIL

#

DEVICE_PROVISIONED=1

debug.sf.hw=1

debug.composition.7x27A.type=mdp

debug.composition.7x25A.type=mdp

dalvik.vm.heapsize=24m

debug.composition.type=dyn

persist.hwc.mdpcomp.enable=true

service.camera.gpu.enable=0

#

# system props for the cne module

#

persist.cne.feature=0

#

# system props for the MM modules

#

media.stagefright.enable-player=true

media.stagefright.enable-meta=false

media.stagefright.enable-scan=true

media.stagefright.enable-http=true

media.stagefright.enable-fma2dp=true

media.stagefright.enable-aac=true

media.stagefright.enable-qcp=true

media.enable-commonsource=true

#

# system props for the LPA/TUNNEL

#

lpa.decode=false

tunnel.decode=true

lpa.use-stagefright=true

#

# system prop for opengles version

#

ro.opengles.version=196608

#

# system props for the data modules

#

ro.use_data_netmgrd=true

persist.data.ds_fmc_app.mode=0

persist.data.netmgrd.qos.enable=true

#

# system props for IMS module

#

persist.ims.regmanager.mode=0

#

# system prop for requesting Master role in incoming Bluetooth connection.

#

ro.bluetooth.request.master=true

#

# system prop for Bluetooth FTP profile

#

ro.qualcomm.bluetooth.ftp=true

#

# system prop for Bluetooth SAP profile

#

ro.qualcomm.bluetooth.sap=true

#

# system prop for Bluetooth Auto connect for remote initated connections

#

ro.bluetooth.remote.autoconnect=true

#

#system property for Bluetooth discoverability timeout in seconds

#0: Always discoverable

#debug.bt.discoverable_time=0

#

# System prop to disable strict mode flash on display

#

persist.sys.strictmode.visual=false

#

# System prop to enable/disable OMH. Enabled by default

#

persist.omh.enabled=1

#System prop to enable ehrpd capability

ro.config.ehrpd=true

# System property for cabl

ro.qualcomm.cabl=0

#

#System prop to determine availability of

#analog fm path

#

ro.fm.analogpath.supported=true

#

#System property for FM transmitter

#

ro.fm.transmitter=false

#

#System property for single instance recording

#

ro.fm.mulinst.recording.support=false

#

#System property for msm

#

ro.hw_plat=7x27a

#

# system props for SD card emulation of emmc partition

#

ro.emmc.sdcard.partition=18

#

# system property to enforce Phone Mode view

#

ro.screen.layout=normal

#

# Turn off tiled rendering

#

debug.enabletr=false

#

#System prop for setting the pixel format

#

ro.staticwallpaper.pixelformat=RGB_565

#

#System prop for disabling the meta data mode for encoder

#

debug.camcorder.disablemeta=0

#

# Simulate sdcard on /data/media

#

persist.fuse_sdcard=true

#

# System prop for using landscape preview layout in camera

#

debug.camera.landscape=true

#

# System prop for capping scroll velocity

#

ro.max.fling_velocity=4000

#

#system prop for Bluetooth hci transport

#

ro.qualcomm.bt.hci_transport=smd

#

# System prop for Tvout/HDMI

#

persist.sys.camera.transform=0

persist.sys.camera.connect=0

persist.sys.videomode=0

ro.hdmi.enable=true

# System proverty for sys info indication

persist.radio.add_power_save=1

# System property for Default Brightness

ro.lcd_min_brightness=10

ro.lcd_brightness=143

# Keep SIM state on LPM mode

persist.radio.apm_sim_not_pwdn=1

persist.sys.storage_preload=1

# VQG - User Agent Header for Video-Streaming Client

net.streaming.rtsp.uaprof=http://wap.samsungmobile.com/uaprof/

#

# ADDITIONAL_BUILD_PROPERTIES

#

dalvik.vm.heapstartsize=8m

dalvik.vm.heapgrowthlimit=128m

dalvik.vm.heapsize=512m

dalvik.vm.heaputilization=0.25

dalvik.vm.heapidealfree=8388608

dalvik.vm.heapconcurrentstart=2097152

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

dalvik.vm.heaptargetutilization=0.75

dalvik.vm.heapminfree=512k

dalvik.vm.heapmaxfree=8m

ro.hwui.texture_cache_size=48

ro.hwui.layer_cache_size=32

ro.hwui.path_cache_size=8

ro.hwui.shape_cache_size=2

ro.hwui.gradient_cache_size=1

ro.hwui.drop_shadow_cache_size=4

ro.hwui.texture_cache_flush_rate=0.5

ro.hwui.text_small_cache_width=1024

ro.hwui.text_small_cache_height=512

ro.hwui.text_large_cache_width=2048

ro.hwui.text_large_cache_height=1024

ro.sec.fle.encryption=true

ro.hdcp2.rx=tz

ro.secwvk=144

ro.securestorage.support=false

ro.config.alarm_alert=Alarm_Morning_flower.ogg

ro.config.ringtone=Snimka.ogg

ro.config.notification_sound=S_Postman.ogg

ro.monkey=0

ro.error.receiver.default=com.samsung.receiver.error

ro.config.media_sound=Media_preview_Touch_the_light.ogg

keyguard.no_require_sim=true

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

ro.carrier=unknown

ro.crypto.support=recovery_mount|others

ro.com.google.clientidbase=android-samsung

# RIL

ro.ril.hsxpa=2

ro.ril.gprsclass=10

ro.ril.hep=1

ro.ril.enable.dtm=1

ro.ril.hspda.category=10

ro.ril.enable.a53=1

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

ro.ril.hsupa.category=5

# Another

ro.adb.qemud=1

ro.setupwizard.mode=OPTIONAL

ro.com.google.gmsversion=4.3_r1

ro.kernel.qemu=0

ro.build.selinux=0

ro.config.tima=1

net.bt.name=Android

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

ro.qc.sdk.izat.premium_enabled=0

persist.gps.qc_nlp_in_use=0

# EXTRA TWEAKS

# Less frequent wifi scan

wifi.supplicant_scan_interval=300

# Battery improvement for connection and reconnection

ro.mot.eri.losalert.delay=1000

# Disable Sending Usage Data

ro.config.nocheckin=1

# Deeper Sleep

pm.sleep_mode=1

# Disable Kernel Error Checking

ro.kernel.android.checkjni=0

# Force Launcher into memory

ro.HOME_APP_ADJ=1

# Internet Speed Tweaks

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

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

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

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

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

# Better Flashlight intensity and camera-flash quality

ro.media.capture.flash=led

ro.media.capture.flashMinV=3300000

ro.media.capture.torchIntensity=40

ro.media.capture.flashIntensity=70

# Better Scrolling responsiveness and speed

windowsmgr.max_events_per_sec=150

ro.max.fling_velocity=12000

ro.min.fling_velocity=8000

# Smoother video streaming

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=false

media.stagefright.enable-http=true

# CRT

persist.sys.screen_on=none

persist.sys.screen_off=crt

#

# ADDITIONAL_OTA_UPDATER

#

otaupdater.otaid=8211250006

otaupdater.otatime=20131125-1500

otaupdater.otaver=9.0