[Huawei Ascend P1] popcorn1122:
Get down grade version from this link

http://en.club.vmall.com/forum.php?mod=viewthread&tid=3909

You register to the site and then you can see the downgrade link. That is the only file you can downgrade to B229

OR

Use the below file in build.prop for B336 and try with the downgrade you have. Better option is the link above :)

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=JRO03L
ro.build.version.incremental=77
ro.build.version.sdk=16
ro.build.version.codename=REL
ro.build.version.release=4.1.1
ro.build.date=Fri Aug 23 05:14:14 CST 2013
ro.build.date.utc=1377206054
ro.build.type=user
ro.build.user=jenkins
ro.build.host=shzdea01
ro.build.tags=test-keys
ro.product.model=U9200
ro.product.brand=Android
ro.product.name=U9200
ro.product.device=viva
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.wifi.channels=
ro.board.platform=omap4
# ro.build.product is obsolete; use ro.product.device
ro.build.product=viva
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=viva-user 4.1.1 JRO03L 77 test-keys
ro.build.characteristics=default
# end build properties

# begin of volatile config
##############################################################
#
#modify history author date reason
#DTS2011120602683 d00185874 2011/12/06 add audio modem interface
#DTS2011120105354 z00192837 20111220 merge the funtion of FM on ICS
#DTS2011102003963 l00186420 20111020 defined the function of press key on MMITest
#DTS2011121904887 c00204148 2011/12/19 modify the USE_FLASHLESS instead of system-prop way
#DTS2012022301577 x00186570 2012/02/23 change for automatically judge whether test version
##############################################################

wifi.interface=wlan0
com.ti.omap_enhancement=true
com.ti.omap_enhancement_s3d=true

ro.config.hw_addsettingsdbex=1
ro.config.hw_toolbox=true
#define a property for hdmi sink channel count
dolby.audio.hdmi.channels=0
#DTS2011120602683 d00185873 2011/12/06 Start
audioril.lib=libhuawei-audio-ril.so
#DTS2011120602683 d00185873 2011/12/06 End
#/*<DTS2011120105354 z00192837 20111220 begin*/
ro.config.fm_type=libbcmfm_if
#/*DTS2011120105354 z00192837 20111220 end>*/
# <DTS2011121603221 ningzhenyu00184073 20111221 begin
ro.config.hw_lockscreen=true
# DTS2011121603221 ningzhenyu00184073 20111221 end>
#DTS2012022301577 x00186570 20120223 begin
ro.config.hw_boardid=unknown
#DTS2012022301577 x00186570 20120223 end
#DTS2011102405215 x00186492 20111021 BEGIN
ro.config.hw_test_version=false
#DTS2011102405215 x00186492 20111021 END
# DTS2011121904887 c00204148 20111219 begin
ro.config.hw_flashless=false
# DTS2011121904887 c00204148 20111219 end
# BEGIN PN:DTS2012010505568,Added by fengfeng00172574, 2012/1/6
persist.sys.strictmode.visual=false
# END PN:DTS2012010505568,Added by fengfeng00172574, 2012/1/6
#DTS2012020907712 guqi00194542 20120210 begin
keyguard.no_require_sim=true
#DTS2012020907712 guqi00194542 20120210 end
#DTS2012011902027 guanjunujie 20120120 begin
ro.config.hw_allowformat=true
#DTS2012011902027 guanjunujie 20120120 end
DTS2012101203564 z00213829 20121012 begin
ro.config.switchPrimaryVolume=true
ro.config.internal_sdcard=yes
DTS2012101203564 z00213829 20121012 begin
#DTS2012011902069 guanjunujie 20120120 begin
ro.config.hw_allow_ums_and_mtp=true
#DTS2012011902069 guanjunujie 20120120 end
#DTS2012021704226_zhaojingjing_zhouming_20120217_begin
ro.config.hw_dolby=true
#DTS2012021704226_zhaojingjing_zhouming_20120217_end
#DTS2012021000837 s00190137 20120223 begin
ro.config.hw_use_browser_ua=http://wap1.huawei.com/uaprof/HUAWEI_U9200_UAProfile.xml
#DTS2012021000837 s00190137 20120223 end
# <DTS2012021702623 taoning 20120220 Begin
ro.config.sim_hot_swap=true
# DTS2012021702623 taoning 20120220 End>
#DTS2012013105290 jinyan 00193806 20120221 begin
ro.config.hw_subtitle_support=true
#DTS2012013105290 jinyan 00193806 20120221 end
#DTS2012092706476 liutinghai 00181364 20121011 end
ro.config.app_big_icon_size=96
#DTS2012092706476 liutinghai 00181364 20121011 end
modem.audio=1

# end of volatile config

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.com.android.dateformat=MM-dd-yyyy
ro.config.ringtone=Huawei_Tune.ogg
ro.config.notification_sound=Glory.ogg
ro.carrier=unknown
ro.config.alarm_alert=Pmukkale.ogg
ro.setupwizard.mode=ENABLED
ro.com.google.gmsversion=4.1_r3
hwui.render_dirty_regions=false
ro.opengles.version=131072
ro.sf.lcd_density=240
ro.config.hw_gps=4751
dalvik.vm.heapstartsize=5m
dalvik.vm.heapgrowthlimit=128m
dalvik.vm.heapsize=256m
dalvik.vm.dexopt-flags=m=y
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt

ro.config.hw_isCustomize=true
ro.config.hw_customizeType=1
ro.config.hw_menu_unlockscreen=false
ro.config.incall_notify_mms=true
ro.config.hw_GSensorOptimize=true
ro.config.hw_vcardBase64=true
ro.config.endstksession=true
ro.config.hw_omacp=1
ro.config.hw_RemindWifiToPdp=false
ro.config.hwft_PinPukUnlockscr=true
ro.backlight.space = 5000
ro.config.bro_about=true
ro.config.bro_exit=true
ro.config.hw_temperature_warn=true
ro.config.hw_uaprof=http://wap1.huawei.com/uaprof/HUAWEI_U9200_UAProfile.xml
ro.config.hw_power_saving=true
ro.config.hw_voicerecord=true
ro.config.hw_support_ipcall=true
ro.config.hw_show_number=false
ro.config.bro_about=true
ro.config.bro_exit=true
ro.config.AM_PM_STYLE=1
ro.config.do_sdcard_upgrade=true
persist.sys.quickpoweron=normal
persist.sys.animationstart=false
ro.config.hw_poanimation=5000
ro.config.hw_ecclist_withcard=1+110,6+119,8+118
ro.config.hw_ecclist_nocard=1+110,6+119,8+118
persist.sys.powerup_reason=
ro.poweroff_alarm=true
persist.sys.actualpoweron=true
ro.config.hw_proximitySensor=true
persist.sys.main_storage=internal_sd
ro.config.hw_globalEcc = true
ro.config.helix_enable=true
ro.config.CphsOnsEnabled=false
ro.camera.sound.forced=1
ro.config.always_animation=true
gsm.sim.num.pin2=3
gsm.sim.num.puk2=10
ro.config.hw_battery_percent = true
ro.config.bg_call_twinking = true
ro.config.hwtheme=2
ro.config.hw_uninstall_dataapp=true
ro.config.hw_remindBT=true
ro.config.helix_a_enable=false
ro.config.helix_b_enable=false
ro.config.helix_e_enable=true
drm.service.enabled=false
ro.huawei.cust.drm.fl_only=false
ro.config.hw_pic_limit_size=50
ro.config.doublehome=true
ro.config.doubleHomeSetting=0
ro.product.locale.language=zh
ro.product.locale.region=CN
ro.config.hw_eapsim=false
ro.ads.bootanim=true
ro.config.hw_lockwp=true
persist.sys.powerup_reason=
ro.poweroff_alarm=true
persist.sys.actualpoweron=true
ro.config.hw_gcf_mms = true
ro.kernel.android.checkjni = 0
ro.opengles.version = 131072
ro.config.hw_allowformat = true
ro.config.fast_dormancy = false
ro.config.hw_dolby_config = viva
ro.config.keypasstouser = true
ro.config.hw_quickpoweron = true
ro.config.hw_ramSize=930504
ro.config.hw_rightsmgr=1

ro.product.board=U9200
ro.confg.hw_systemversion=U9200-1V100R001C00B226_SYSTEM
ro.build.display.id=U9200-1V100R001C00B226
ro.product.model=U9200
ro.product.brand=Huawei
ro.build.tags=ota-rel-keys,release-keys
ro.product.manufacturer=HUAWEI
ro.product.name=U9200
ro.product.device=hwu9200
ro.build.id=HuaweiU9200
ro.build.version.incremental=C00B226
ro.build.description=U9200-user 4.0.3 HuaweiU9200 C00B226 ota-rel-keys,release-keys
ro.build.fingerprint=Huawei/U9200/hwu9200:4.0.3/HuaweiU9200/C00B226:user/ota-rel-keys,release-keys