Other Firmware Need help. - Android Q&A, Help & Troubleshooting

i need any other firmware for my phone kindly tell me or suggest me any other firmware. phone has 4 gb rom 512 ram and one sim supported.
build prompt file here.
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=JLS36C
ro.build.display.id=EMS_UF2021_0.0.4
ro.build.version.incremental=eng.android.20140717. 210438
ro.build.version.sdk=18
ro.build.version.codename=REL
ro.build.version.release=4.3
ro.build.date=Thu Jul 17 21:06:25 CST 2014
ro.build.date.utc=1405602385
ro.build.type=user
ro.build.tags=release-keys
ro.product.model=UF2021
ro.product.brand=Ufone_Smart_U5
ro.product.name=I3S_EMS
ro.product.device=I3S_EMS
ro.build.host=android
ro.build.fingerprint=Ufone_Smart_U5/I3S_EMS/I3S_EMS:4.3/JLS36C/eng.android.20140717.210438:user/release-keys
ro.build.user=android
ro.product.board=MSM8610
ro.product.cpu.abi=armeabi-v7a
ro.product.phonestorage.name=Internal SD
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=EMS
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=msm8610
# ro.build.product is obsolete; use ro.product.device
ro.build.product=I3S_EMS
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=I3S_EMS-user 4.3 JLS36C eng.android.20140717.210438 release-keys
ro.build.characteristics=default
# end build properties
#
# system.prop for msm8610
#
# Use reference RIL for initial bringup
#rild.libpath=/system/lib/libreference-ril.so
rild.libpath=/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
persist.radio.msgtunnel.start=false
persist.radio.atfwd.start=false
# Start in cdma mode
# ro.telephony.default_network=5
# Start in wcdma preferred mode, zxb 20140118
ro.telephony.default_network=0
#
# system props for the cne module
#
persist.cne.feature=4
# system prop for override memlimit to enable cne
persist.cne.override.memlimit=1
# Skip /sys/power/wait_for_fb_* nodes and
# force FB to be always on
debug.sf.fb_always_on=1
debug.composition.type=dyn
debug.gralloc.map_fb_memory=0
debug.hwc.dynThreshold=1.5
dalvik.vm.heapsize=36m
dev.pm.dyn_samplingrate=1
ro.hdmi.enable=true
tunnel.decode=false
#8x10 does not support tunnel av playback
#this prop should be set to false all the time
tunnel.audiovideo.decode=false
//lpa.decode=true
lpa.decode=false
lpa.use-stagefright=true
#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
media.aac_51_output_enabled=true
mm.enable.qcom_parser=131071
# VIDC: debug_levels
# 1:ERROR 2:HIGH 4:LOW 0:NOlogs 7:AllLogs
vidc.debug.level=1
#
# system props for widevine
#
persist.gralloc.cp.level3=1
#
# system props for the data modules
#
ro.use_data_netmgrd=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 props for telephony
# System prop to turn off CdmaLTEPhone always, zxb 20140118
telephony.lteOnCdmaDevice=0
# simulate sdcard on /data/media
#
persist.fuse_sdcard=false
#
# System prop for enabling the cdrom feature
#
persist.service.cdrom.enable=1
#
# System prop for default USB configuration
#
# add by lihuangbin for delete adb in 20140702
persist.sys.usb.config=diag,serial_smd,serial_tty, rmnet_bam,mass_storage
#
#snapdragon value add features
#
ro.qc.sdk.audio.ssr=false
##fluencetype can be "fluence" or "fluencepro" or "none"
ro.qc.sdk.audio.fluencetype=none
# Reduce Background apps limit
ro.sys.fw.bg_apps_limit=20
# System property for cabl
# modify by zhangdi 20131227 1-0
ro.qualcomm.cabl=0
# Enable Fast Dormancy 103
persist.env.fastdorm.enabled=true
#system props for restore modem_pref support
persist.radio.restore_mode_pref=1
#
# dirty ratio value when enable UMS
#
ro.sys.umsdirtyratio=20
# Enable RST packet drop
persist.data.tcp_rst_drop=true
# system prop for NFC DT
ro.nfc.port=I2C
#
#DASH video streaming
#Specify max allowed resolution/bandwidth for representations
#Set allowed avsync window during playback
#
persist.dash.max.rep.resolution=1280*720
persist.dash.max.rep.bandwidth=4000000
persist.dash.avsync.window.msec=100
tunnel.audio.encode = false
#add by zhangdi 20140314
wlan.ap.status = disconnected
#PPPOE config enable
#
ro.config.pppoe_enable=1
# system prop for storage test
ro.external.sd.path=/storage/sdcard1
#
#System property for FM transmitter
#
ro.fm.transmitter=false
#Audio Resourcemanager exceptions
#by enabling following flag to true we support pcm camcorder recording
rm.audio.exceptions = false
# add by liuchunxu for csvt
persist.radio.calls.on.ims=true
persist.radio.jbims=1
persist.radio.csvt.enabled=true
persist.radio.VT_ENABLE=1
persist.radio.VT_HYBRID_ENABLE=1
# liuchunxu add
persist.env.c.phone.matchnum=7
#Begin add by gouyanhong
persist.sys.bootSound.enable=1
#add by hanjue
persist.camera.tintless=enable
persist.denoise.process.plates=0
persist.camera.aec.iso_preview=1
#Begin add by lihuangbin
#default timezone
persist.sys.timezone=Asia/Shanghai
#add by liangchongshang for logkit
persist.sys.logkit.ctrlcode=0
#add by wuqibing for signal sim
persist.radio.multisim.config=ssss
#
# ADDITIONAL_BUILD_PROPERTIES
#
keyguard.no_require_sim=true
ro.com.android.dataroaming=false
ro.com.android.dateformat=MM-dd-yyyy
ro.carrier=unknown
ro.config.alarm_alert=Alarm_Classic.ogg
ro.vendor.extension_library=/vendor/lib/libqc-opt.so
dalvik.vm.heapstartsize=8m
dalvik.vm.heapgrowthlimit=96m
dalvik.vm.heapsize=256m
dalvik.vm.heaptargetutilization=0.75
dalvik.vm.heapminfree=2m
dalvik.vm.heapmaxfree=8m
ro.config.ringtone=Ufone_Ringtone.mp3
ro.config.notification_sound=Ufone_Notification_To ne.mp3
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
ro.qc.sdk.izat.premium_enabled=1
ro.qc.sdk.izat.service_mask=0x5
persist.gps.qc_nlp_in_use=0
ro.gps.agps_provider=1