[Q] Need help to Root MTK6573 Unnecto Quattro - Android Q&A, Help & Troubleshooting

Hi, I bought a Unnecto Quattro, which I have been using since February. I like the big screen, battery life is reasonable, but the ROM storage is desperately inadequate. I am not able to install many of my favorite apps/games on it, as it is , so I need help from forum users to provide guidance or instruction to Root this device so I can remove some of the unwanted apps/games stored in the system. I have searched through many Chinese and Russian Websites websites and tried many Root apps (including the SP apps and MTK Root apps), but so far I'm not having luck in rooting it.
Basically the phone comes with the build.prop as follows:
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=GRJ90
ro.build.display.id=U710_V2V04
ro.build.hardware.display.id=MP000_V2.00_PCB
ro.build.version.incremental=eng.jxj.1341299669
ro.custom.build.version=1341299669
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.5
ro.build.date=2012? 07? 03? ??? 15:18:58 CST
ro.build.date.utc=1341299938
ro.build.type=user
ro.build.user=jxj
ro.build.host=rj2-jxj
ro.build.tags=test-keys
ro.product.model=U710
ro.product.brand=Unnecto
ro.product.name=U710
ro.product.device=simcom73cu_bu2_gb
ro.product.board=simcom73cu_bu2_gb
ro.product.cpu.abi=armeabi
ro.product.manufacturer=unknown
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=
# ro.build.product is obsolete; use ro.product.device
ro.build.product=simcom73cu_bu2_gb
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=simcom73cu_bu2_gb-user 2.3.5 GRJ90 eng.jxj.1341299669 test-keys
ro.build.fingerprint=yusu/simcom73cu_bu2_gb/simcom73cu_bu2_gb:2.3.5/GRJ90/eng.jxj.1341299669:user/test-keys
ro.build.flavor=
# end build properties
# begin mediatek build properties
ro.mediatek.version.release=ALPS.GB.FDD2.MP.V3.9
ro.mediatek.platform=MT6573
ro.mediatek.chip_ver=S01
ro.mediatek.version.branch=ALPS.GB.FDD2_MP
# end mediatek build properties
#
# system.prop for generic sdk
#
rild.libpath=/system/lib/mtk-ril.so
rild.libargs=-d /dev/ttyC0
# MTK, Infinity, 20090720 {
wifi.interface=wlan0
# MTK, Infinity, 20090720 }
# MTK, mtk03034, 20101210 {
ro.mediatek.wlan.wsc=1
# MTK, mtk03034 20101210}
# MTK, mtk03034, 20110318 {
ro.mediatek.wlan.p2p=1
# # MTK, mtk03034 20110318}
# MTK, mtk03034, 20101210 {
mediatek.wlan.ctia=0
# MTK, mtk03034 20101210}
#
# MTK, TeChien {
ro.media.enc.hprof.file.format=3gp
ro.media.enc.hprof.codec.vid=m4v
ro.media.enc.hprof.vid.width=720
ro.media.enc.hprof.vid.height=480
ro.media.enc.hprof.vid.fps=30
ro.media.enc.hprof.vid.bps=3400000
ro.media.enc.hprof.codec.aud=amrnb
ro.media.enc.hprof.aud.bps=12200
ro.media.enc.hprof.aud.ch=1
ro.media.enc.hprof.aud.hz=8000
ro.media.enc.mprof.file.format=3gp
ro.media.enc.mprof.codec.vid=m4v
ro.media.enc.mprof.vid.width=352
ro.media.enc.mprof.vid.height=288
ro.media.enc.mprof.vid.fps=30
ro.media.enc.mprof.vid.bps=990000
ro.media.enc.mprof.codec.aud=amrnb
ro.media.enc.mprof.aud.bps=12200
ro.media.enc.mprof.aud.ch=1
ro.media.enc.mprof.aud.hz=8000
ro.media.enc.lprof.file.format=3gp
ro.media.enc.lprof.codec.vid=h263
ro.media.enc.lprof.vid.width=176
ro.media.enc.lprof.vid.height=144
ro.media.enc.lprof.vid.fps=30
ro.media.enc.lprof.vid.bps=384000
ro.media.enc.lprof.codec.aud=amrnb
ro.media.enc.lprof.aud.bps=12200
ro.media.enc.lprof.aud.ch=1
ro.media.enc.lprof.aud.hz=8000
# MTK, TeChien }
wifi.tethering.interface=ap0
wifi.direct.interface=p2p0
ro.opengles.version=131072
persist.sys.timezone=America/Chicago
#huangwentao 2011.12.20 proximity setting enable
ro.proximity.setting.enable=0
#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.sf.hwrotation=0
curlockscreen=1
ril.current.share_modem=2
ro.mediatek.gemini_support=true
ro.config.notification_sound=unnecto_message_1.wav
ro.config.alarm_alert=unnecto_alarm.wav
ro.config.ringtone=unnecto_ring_o.wav
launcher2.allappsgrid=3d_20
media.stagefright.enable-player=false
media.stagefright.enable-meta=false
media.stagefright.enable-scan=false
media.stagefright.enable-http=false
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
You help is very much appreciated.
Thank you.