[Android Q&A, Help & Troubleshooting] WhenAStarDies:
Sorry, I was typing while having a 3 year old babble about capes and cabbage (literally) so if I'm not making sense, apologies.

I have a RED non Nick-Jr 16GB Nabi Jr. I also bought a Nick Jr edition months later. Because I'm supposed to have received the free Nick Jr content on the regular one because of the aforementioned fiasco, and after resetting it and having issues, they asked me to do an RMA and they'll replace it with a second Nick Jr edition. So in the attempt to reset it again and clear out obvious signs of root (since I no longer had backup files) I now cannot even get it through the initial setup for it to load the Nabi Jr software.

So I ran a backup on the Nick Jr edition to see if it would restore on the regular one. The Nick Jr model shows me the restore files in TWRP, but those same files do not show up in TWRP on the regular Nabi Jr. I do believe they are the same hardware (Tegra3, nfc, 16gb).

After some finagling, I got the build.prop to copy over... and just to clarify, I'm an idiot when it comes to this depth of the technology pool. I was only really messing with the thing because they were so far out of warranty.

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=JZO54L
ro.build.display.id=JZO54L.NJ5-JB412_01_03_131011_866
ro.build.version.incremental=NJ5-JB412_01_03_131011_866
ro.build.version.sdk=16
ro.build.version.codename=REL
ro.build.version.release=4.1.2
ro.build.date=Fri Oct 11 15:43:26 CST 2013
ro.build.date.utc=1381477407
ro.build.type=user
ro.build.user=build-svr-c
ro.build.host=build-svr-c
ro.build.tags=release-keys
ro.product.model=Kai
ro.product.brand=generic
ro.product.name=kai
ro.product.device=kai
ro.product.board=
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=NVIDIA
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=11
ro.board.platform=tegra
# ro.build.product is obsolete; use ro.product.device
ro.build.product=kai
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=kai-user 4.1.2 JZO54L NJ5-JB412_01_03_131011_866 release-keys
ro.build.fingerprint=nabi/nabi_JR/junior:4.1.2/JZO54L/NJ5-JB412_01_03_131011_866:user/release-keys
ro.build.characteristics=tablet
# end build properties
ro.opengles.version = 131072
wifi.interface=wlan0
ap.interface=wlan0
persist.tegra.nvmmlite = 1

keyguard.no_require_sim=true

#NFC
debug.nfc.fw_download=false
debug.nfc.se=false

##ro.sf.lcd_density=160
ro.sf.lcd_density=186

#support dynamic resolution change property
ro.streaming.video.drs=true

### NJ5+
persist.sys.srsenable=0
persist.sys.srssupported=0
af.resampler.quality=3

# OS Mode for NJ5
persist.sys.nabi.mode.default=0
persist.sys.nabi.mode.current=0
persist.sys.nabi.install.done=0

#OTA
persist.sys.ota = 0

#Balanced Power Mode
#persist.sys.NV_FPSLIMIT=0
### NJ5-

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.com.android.dateformat=MM-dd-yyyy
ro.config.ringtone=Ring_Synth_04.ogg
ro.config.notification_sound=pixiedust.ogg
ro.carrier=unknown
ro.config.alarm_alert=Alarm_Classic.ogg
drm.service.enabled=true
dalvik.vm.heapstartsize=8m
dalvik.vm.heapgrowthlimit=64m
dalvik.vm.heapsize=384m
ro.fuhu.project_name=FX_nabi_Jr_16
ro.fuhu.device_edition=NABIJR-NV5B-US
ro.fuhu.product.version=1.2
dalvik.vm.dexopt-flags=m=y
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
tf.enable=y