[Android Q&A, Help & Troubleshooting] iEstuardo:
Build.prop:

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=FRG83G
ro.build.display.id=FRG83G.v53N-0
ro.build.version.incremental=v53N-0
ro.build.version.sdk=8
ro.build.version.codename=REL
ro.build.version.release=2.2.2
ro.build.date=Wed Oct 26 14:26:07 CST 2011
ro.build.date.utc=1319610367
ro.build.type=user
ro.build.user=hzhang
ro.build.host=aclgcl-ubnt222
ro.build.tags=release-keys
ro.product.model=ALCATEL_one_touch_990A
ro.product.brand=TCT
ro.product.name=one_touch_990A_MVGT
ro.product.device=one_touch_990A_gsm
ro.product.board=Brandy
ro.product.cpu.abi=armeabi
ro.product.manufacturer=TCT
ro.wifi.channels=
ro.board.platform=msm7k
# ro.build.product is obsolete; use ro.product.device
ro.build.product=one_touch_990A_gsm
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=one_touch_990A_MVGT-user 2.2.2 FRG83G v53N-0 release-keys
ro.build.fingerprint=TCT/one_touch_990A_MVGT/one_touch_990A_gsm/Brandy:2.2.2/FRG83G/v53N-0:user/release-keys
# end build properties
#
#jrd sys properties
#

ro.config.ringtone=Buoy.ogg
ro.config.notification_sound=Shimmer.ogg
ro.com.cbw.requirement=false
ro.com.movilnet.SP.label=false
ro.com.Guatemala.SP.call=false
ro.com.movistar.SP.call=false
ecc.list.for.peso=911
ro.config.message_ringtone=Cup.ogg
ro.config.alarm_alert=Harp.ogg
ro.product.dataroaming.popup=false
ro.com.wind.language=false
ro.com.language.customize=false
ro.config.sync=yes
ro.wifi.channels=5
ro.com.google.clientidbase=android-alcatel
ro.com.google.clientidbase.ms=android-alcatel
ro.com.google.clientidbase.gmm=android-alcatel
ro.com.google.clientidbase.am=android-alcatel
ro.com.google.clientidbase.yt=android-alcatel
ro.setupwizard.mode=OPTIONAL
ro.com.google.gmsversion=2.2_r10
ro.allow.mock.location=1
ro.amss.audio.config=0
ro.audio.dualmic.enable=false
ro.config.phnum_significant_len=7
ro.def.screen.brightness=48
persist.sys.timezone=GMT
ro.default.emergency.number=911
ro.com.android.dataroaming=true
ro.product.locale.language=es
ro.product.locale.region=GT
ro.def.volume.ring=5
ro.def.volume.media=11
ro.def.screen.touch_tone=0
persist.settings.gps=0
persist.settings.wloc=0
ro.mmsbeep.in.calling=1
persist.service.adb.enable=1
ro.def.screen.brightness.mode=auto
A51.supported.for.perso=true
A52.supported.for.perso=true
A53.supported.for.perso=true
ro.kernel.diag.enable=true
show.callwaiting.bear.service=0
ro.show.emergencycall.box=false
ro.authentech.drm.enable=true
persist.adb.notify=1
telcel.clearcodes.for.perso=false
comcel.clearcodes.for.perso=false
keyguard.no_require_sim=true
ro.force.install.custom.app=false
ro.update.cfi.for.all=false
Def.AMRWB.Enable=0x0d
ro.gps.supl.server=supl.google.com
ro.gps.supl.port=7276
ro.def.software.version=01
gsm.version.baseband=60501005
ro.dial.twodigits.enable=false
def.rtsp.port.limit=8000,60000
ro.config.switch_on=
ro.config.switch_off=
ro.config.key_switch_on_off=0
ro.config.key_off_animation=0
Def.CallBarring.Menu.hide=true
persist.radio.sms_sync_sending=true
def.sdn.list.menu.hide=true
gsm.stk.perso.app_title=Mis Servicios
#
# system.prop for ffa
#

rild.libpath=/system/lib/libril-qc-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=
DEVICE_PROVISIONED=1
debug.sf.hw=0
dalvik.vm.heapsize=24m
media.stagefright.enable-player=false
media.stagefright.enable-meta=false
media.stagefright.enable-scan=false
media.stagefright.enable-http=false

#add by gangqiang.yang for PR84833 start
# system prop for opengles version 2
ro.opengles.version=131072
#add by gangqiang.yang for PR84833 end

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.config.notification_sound=OnTheHunt.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt

Yes, that was the method I used in OTU.

Here is the dumped studypara.img, but remember that before I downgrade, I flashed the working studypara, so maybe it will be the same.