[ZTE Grand X V970] jonzalvo:
Spain Yoigo ZTE has brought GRAND X (M).

is the v970 but is identical to a single sim.

Same processor, same ram, is accurate at all.

From zte spain can download your rom, in places that have build mt6577

http://wwwen.zte.com.cn/endata/mobile/Spain/

build.prop :

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=IMM76D
ro.build.display.id=YIG-ES-QB18S-P175A20V1.0.1
ro.build.version.incremental=eng.zte.20130104.160505
ro.custom.build.version=B05
ro.build.version.sdk=15
ro.build.version.codename=REL
ro.build.version.release=4.0.4
ro.build.date=Fri Jan 4 16:06:41 CST 2013
ro.build.date.utc=1357286801
ro.build.type=user
ro.build.user=zte
ro.build.host=SW219
ro.build.tags=release-keys
ro.product.model=Grand X(M)
ro.product.brand=ZTE
ro.product.name=P175A20
ro.product.device=P175A20
ro.product.board=ztenj77_cu_ics
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=ZTE
ro.product.locale.language=es
ro.product.locale.region=ES
ro.wifi.channels=
ro.board.platform=
# ro.build.product is obsolete; use ro.product.device
ro.build.product=mt6577_phone
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=mt6577_phone-user 4.0.4 IMM76D eng.zte.20130104.160505 release-keys
ro.build.fingerprint=ZTE/P175A20/P175A20:4.0.4/IMM76D/20130104.160505:user/release-keys
ro.build.flavor=
ro.build.characteristics=default
# end build properties

# begin mediatek build properties
ro.mediatek.version.release=YIG-ES-QB18S-P175A20V1.0.1
ro.mediatek.platform=MT6577
ro.mediatek.chip_ver=S01
ro.mediatek.version.branch=ALPS.ICS2.6577.SP
# 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, 20101213 {
mediatek.wlan.ctia=0
# MTK, mtk03034 20101213}

# 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
ro.operator.optr=CUST
# MTK, TeChien }

#
wifi.tethering.interface=ap0
#

ro.opengles.version=131072

wifi.direct.interface=p2p0
dalvik.vm.heapgrowthlimit=48m
dalvik.vm.heapsize=128m

# Encrypt phone function
ro.crypto.tmpfs_options=mode=0771,uid=1000,gid=1000
ro.crypto.fs_type=ext4
ro.crypto.fs_real_blkdev=/emmc@usrdata
ro.crypto.fs_mnt_point=/data
ro.crypto.fs_options=noauto_da_alloc
ro.crypto.fs_flags=0x00000406

# USB MTP WHQL
ro.sys.usb.mtp.whql.enable=0

# Power off opt in IPO
sys.ipo.pwrdncap=2

ro.sys.usb.storage.type=mtp,mass_storage
# ZengGuangyuan modify for add virtual disk
ro.sys.usb.bicr=yes
persist.sys.usb.bicr_evo=yes

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.sf.hwrotation=0
ril.current.share_modem=1
launcherplus.allappsgrid=2d
launcher2.allappsgrid=3d_20
curlockscreen=2
ro.mediatek.gemini_support=false
persist.radio.fd.counter=20
persist.radio.fd.off.counter=20
drm.service.enabled=true
fmradio.driver.enable=1
dalvik.vm.mtk-stack-trace-file=/data/anr/mtk_traces.txt
ro.config.notification_sound=OnTheHunt.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
ro.config.ringtone=The_party.ogg
ro.setupwizard.mode=ENABLED
ro.com.google.gmsversion=4.0_r7
ro.com.google.clientidbase=android-zte
ro.com.google.clientidbase.ms=android-zte
ro.com.google.clientidbase.yt=android-zte
ro.com.google.clientidbase.am=android-zte
ro.com.google.clientidbase.gmm=android-zte
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt