[Galaxy Ace S5830 Android Development] DutchArjo:
No. It is not working at all. After the installer has finished, the phone has to boot. But my screen stays black when I should see 'cyanogen experience' or 'the ultimatum' (boot animation).

This is how my modified build.prop looks like:

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=The Ultimatum
ro.build.display.id=The Ultimatum [-The"A"Factor]
ro.build.version.incremental=eng..20121103.223739
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.7
ro.build.date=Mon Sept 9 18:21:15 PDT 2013
ro.build.date.utc=0
ro.build.type=user
ro.build.user=Cyanogen
ro.build.host=The"A"Factor
ro.build.tags=test-keys
ro.product.model=GT-S5830
ro.product.brand=samsung
ro.product.name=GT-S5830
ro.product.device=GT-S5830
ro.product.board=GT-S5830
ro.product.cpu.abi=armeabi-v6l
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=Samsung
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=msm7k
# ro.build.product is obsolete; use ro.product.device
ro.build.product=GT-S5830
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=GT-S5830-user 2.3.4 GINGERBREAD XXKPH test-keys
ro.build.fingerprint=samsung/GT-S5830/GT-S5830:2.3.4/GINGERBREAD/XXKPH:user/test-keys
ro.cm.device=GT-S5830
# end build properties
#
# system.prop for GT-S5830
#

Compared to the original build.prop from 'the ultimatum':

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=The Ultimatum
ro.build.display.id=The Ultimatum [-The"A"Factor]
ro.build.version.incremental=eng..20121103.223739
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.7
ro.build.date=Mon Sept 9 18:21:15 PDT 2013
ro.build.date.utc=0
ro.build.type=user
ro.build.user=Cyanogen
ro.build.host=The"A"Factor
ro.build.tags=test-keys
ro.product.model=GT-S5830
ro.product.brand=samsung
ro.product.name=cooper
ro.product.device=cooper
ro.product.board=cooper
ro.product.cpu.abi=armeabi-v6l
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=Samsung
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=msm7k
# ro.build.product is obsolete; use ro.product.device
ro.build.product=cooper
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=GT-S5830-user 2.3.4 GINGERBREAD XXKPH test-keys
ro.build.fingerprint=samsung/GT-S5830/GT-S5830:2.3.4/GINGERBREAD/XXKPH:user/test-keys
ro.cm.device=cooper
# end build properties
#
# system.prop for cooper
#

And the stock build.prop:

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=GINGERBREAD
ro.build.display.id=GINGERBREAD.XWKTS
ro.build.version.incremental=XWKTS
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.6
ro.build.date=Wed Oct 17 17:41:09 KST 2012
ro.build.date.utc=1350463269
ro.build.type=user
ro.build.user=dpi
ro.build.host=DELL177
ro.build.tags=release-keys
ro.product.brand=samsung
ro.product.model=GT-S5830
ro.product.name=GT-S5830
ro.product.device=GT-S5830
ro.product.board=GT-S5830
# ro.build.product is obsolete; use ro.product.device
ro.build.product=GT-S5830
ro.product.cpu.abi=armeabi
ro.product.manufacturer=samsung
ro.product.locale.language=en
ro.product.locale.region=GB
ro.wifi.channels=
ro.board.platform=msm7k
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=GT-S5830-user 2.3.6 GINGERBREAD XWKTS release-keys
ro.build.fingerprint=samsung/GT-S5830/GT-S5830:2.3.6/GINGERBREAD/XWKTS:user/release-keys
# Samsung Specific Properties
ro.build.PDA=S5830XWKTS
ro.build.hidden_ver=S5830XWKTS
ro.build.changelist=1203276
ro.build.buildtag=
# end build properties
#
# system.prop for GT-S5830
#