Sorry, could you be more specific - what type of app? Presently the file is read only...here is the content:

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=JDQ39

ro.build.display.id=DS1006-eng 4.2.2 JDQ39 eng.ljh.20130506.105106 test-keys

ro.build.version.incremental=eng.ljh.20130426.105106

ro.build.version.sdk=17

ro.build.version.codename=REL

ro.build.version.release=4.2.2

ro.build.date=2013�?04�?26�?星期�?10:51:47 CST

ro.build.date.utc=1366944707

ro.build.type=eng

ro.build.user=ljh

ro.build.host=mid-Porsche

ro.build.tags=test-keys

ro.product.model=M9

ro.product.brand=PIPO

ro.product.name=rk30sdk

ro.product.device=rk30sdk

ro.product.board=rk30sdk

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=rockchip

ro.product.locale.language=en

ro.product.locale.region=GB

ro.wifi.channels=

ro.board.platform=rk30xx

# ro.build.product is obsolete; use ro.product.device

ro.build.product=rk30sdk

# Do not try to parse ro.build.description or .fingerprint

ro.build.description=rk30sdk-eng 4.2.2 JDQ39 eng.ljh.20130426.105106 test-keys

ro.build.fingerprint=rk30sdk/rk30sdk/rk30sdk:4.2.2/JDQ39/eng.ljh.20130426.105106:eng/opinions-on-teclast-p90hdst-keys

ro.build.characteristics=tablet

# end build properties

#

# system.prop

#

#rild.libpath=/system/lib/libreference-ril.so

#rild.libargs=-d /dev/ttyUSB2

# Default ecclist

ro.ril.ecclist=112,911

#

# ADDITIONAL_BUILD_PROPERTIES

#

ro.com.android.dateformat=MM-dd-yyyy

ro.rk.systembar.voiceicon=true

ro.config.ringtone=Ring_Synth_04.ogg

ro.config.notification_sound=pixiedust.ogg

ro.carrier=unknown

ro.config.alarm_alert=Alarm_Classic.ogg

dalvik.vm.heapstartsize=8m

dalvik.vm.heapgrowthlimit=64m

dalvik.vm.heapsize=384m

dalvik.vm.heaptargetutilization=0.75

dalvik.vm.heapminfree=512k

dalvik.vm.heapmaxfree=8m

ro.config.facelock=enable_facelock

persist.facelock.detect_cutoff=5000

persist.facelock.recog_cutoff=5000

ro.sf.lcdc_composer=0

keyguard.no_require_sim=true

ro.com.android.dataroaming=true

ril.function.dataonly=0

persist.sys.strictmode.visual=false

dalvik.vm.jniopts=warnonly

ro.rksdk.version=RK30_ANDROID4.2.2-SDK-v1.00.00

sys.hwc.compose_policy=6

sf.power.control=2073600

sys.rkadb.root=0

ro.sf.fakerotation=true

ro.sf.hwrotation=270

ro.rk.MassStorage=false

ro.rk.systembar.voiceicon=false

wifi.interface=wlan0

ro.tether.denied=false

ro.sf.lcd_density=160

ro.rk.screenoff_time=120000

ro.rk.def_brightness=128

ro.rk.homepage_base=http://www.google.com/webhp?client={CID}&source=android-home

ro.rk.install_non_market_apps=true

ro.default.size=100

persist.sys.timezone=Europe/London

ro.product.usbfactory=PIPO

wifi.supplicant_scan_interval=180

ro.opengles.version=131072

ro.factory.tool=0

ro.kernel.android.checkjni=0

ro.rk.bt_enable=true

ro.rk.btchip=mt6622

ro.factory.storage_policy=0

persist.sys.usb.config=mass_storage

testing.mediascanner.skiplist=/mnt/sdcard/Android/

ro.product.version=1.0.0

ro.product.ota.host=www.rockchip.com:2300

dalvik.vm.dexopt-flags=m=y

net.bt.name=Android

dalvik.vm.stack-trace-file=/data/anr/traces.txt

#

# Hejira Additions

#

# Multi user selection 4.2

fw.max_users=5

globula_neagra said

Use an application from Google Market or, extract the build.prop to your pc, use a text editor like TextPad, save what you want, re-push the file to the tablet, setting the appropriate permissions.

Hi everybody,

I can't use the multi user with this ROM ?

I have put the "fw.max_users=5" on the build.prop but when I try to open the new user, I have the error on com.android.provision. It stopped....

If anybody can help me...

Excuse my bad english !!