Welcome to the INDEX of SWeb. Pardon the ongoing construction.

# autogenerated by buildinfo.sh
Version Number of 4.1.2
ro.build.id=JZO54K

Current Rom version on Phone: by editing this value, you will change what are standing in Settings/About Phone/Buildnumber. For Example you can change it to Omega by Indie or what ever you like.
ro.build.display.id=Omega v8.0 - XXDLK7

Your current Modem version
ro.build.version.incremental=N7100XXDLK7

Current sdk version of Framework plus Codename
ro.build.version.sdk=16
ro.build.version.codename=REL

Android Version on Phone
ro.build.version.release=4.1.2

Current Kernel version
ro.build.date=Mon Nov 26 18:23:18 KST 2012
ro.build.date.utc=1353921798
ro.build.type=user
ro.build.user=se.infra
ro.build.host=SEP-78

This means its a official release
ro.build.tags=release-keys

Model Number plus Manufacturer
ro.product.model=GT-N7100
ro.product.brand=samsung

Name
ro.product.name=t03gxx

Device
ro.product.device=t03g

The phone’s board is listed as “smdk4x12,” which means it will most likely use Exynos 4212 or 4412 supporting a maximum clock speed of 1.4GHz (1.6GHz).
ro.product.board=smdk4x12

System Images
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product_ship=true

Nothing to say
ro.product.manufacturer=samsung

Current default Country settings. If you change that line for example to ro.product.locale.language=de and ro.product.locale.region=De, the phone will set to German after a factory reset
ro.product.locale.language=en
ro.product.locale.region=GB

If you not able to connect to your wifi, you can try to set here the same number of channels as your router currently got. For example: Your router is set to 14 channels you can paste the same number in here.
ro.wifi.channels=

Nothing interest on the next few points. Most are explained above.
ro.board.platform=exynos4
# ro.build.product is obsolete; use ro.product.device
ro.build.product=t03g
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=t03gxx-user 4.1.2 JZO54K N7100XXDLK7 release-keys
ro.build.fingerprint=samsung/t03gxx/t03g:4.1.2/JZO54K/N7100XXDLK7:user/release-keys
ro.build.characteristics=default
# Samsung Specific Properties
ro.build.PDA=N7100XXDLK7
ro.build.hidden_ver=N7100XXDLK7
ro.build.changelist=590308
# end build properties
#
# system.prop for smdk4x12
#

Ril Specific: Here some from aosp to that: RIL daemon reads rild.lib path and rild.libargs system properties to determine the Vendor RIL library to use and any initialization arguments to provide to the Vendor RIL
rild.libpath=/system/lib/libsec-ril.so
rild.libargs=-d /dev/ttyS0

Here you can set the Pixel per inch. The smaller you set it the smaller apps, icons and fonts will be. But be careful if you set it to low apps can crash! Also you can´t set it higher than the default value!
ro.sf.lcd_density=320

Minimum brightness of your screen
ro.lcd_min_brightness=20

This point is about rooting. It´s setting if the device running on the emulator or running in secure mode
ro.kernel.qemu=0

This point speak for itself
ro.tvout.enable=true

Maybe someone can light me up on that point.
persist.sys.storage_preload=1

Same here
net.streaming.rtsp.uaprof=http://wap.samsungmobile.com/uaprof/

# Multimedia property for Smart View
media.enable-commonsource=true

# System property ril adb log on
persist.radio.adb_log_on=1

#
# ADDITIONAL_BUILD_PROPERTIES
#

Support for OpenGl 2.0
ro.opengles.version=131072

System property used to enable or disable dirty regions invalidation.
debug.hwui.render_dirty_regions=false

Same as above, setting the pixel per inch
ro.sf.lcd_density=320

System property defining default error report receiver
ro.error.receiver.default=com.samsung.receiver.err or

This controls the smallest amount of memory given to a single application.
dalvik.vm.heapstartsize=8m

The dalvik.vm.heapgrowthlimit property limits how large an Android application’s heap can get.
dalvik.vm.heapgrowthlimit=64m

The dalvik.vm.heapsize property defines an absolute maximum for the heap size for an application.
dalvik.vm.heapsize=256m

No clue about the next three points. Help is appreciated.
ro.hdcp2.rx=tz
ro.secwvk=220
ro.sec.fle.encryption=true

Here you can set the standard media sounds for each notification. But they got to match with the one in system/media/audio/...
ro.config.ringtone=S_Over_the_horizon.ogg
ro.config.notification_sound=S_Whistle.ogg
ro.config.alarm_alert=Walk_in_the_forest.ogg
ro.config.media_sound=Media_preview_Touch_the_ligh t.ogg

That means your phone is still usable, even you got no Sim card in it.
keyguard.no_require_sim=true

Format of date
ro.com.android.dateformat=MM-dd-yyyy

Setting this value from unknown to wifi-only can fix some stand by issues.
ro.carrier=unknown

Needed for Play store. Some guys modded it to pay with her Phone bill, but i don't know if that still works.
ro.com.google.clientidbase=android-samsung

Defines weither to use UMTS (0), HSPDA/UMTS(1), or HSDPA/HSPUA(2) respectively.Here you can improve your Data speed if your provider supports it. Set this to 0 if you want lower speeds, and up to 2 for faster speeds.
ro.ril.hsxpa=1

Defines what class speeds to use with EDGE. Setting this value to 12 can improve the data speed significant on lower connections.
ro.ril.gprsclass=10

Value for adb. Is a pipe connection in the adb client.
ro.adb.qemud=1

Google Mobile Service Version with build number
ro.com.google.gmsversion=4.1_r3

Basically you control the class-loading and dalvik-vm there. Here you can set different values. v=a means verify all, v=f means verify full, o=v means optimize verify, u=n means do not optimize for unprocessor and m=y means register maps yes
dalvik.vm.dexopt-flags=m=y

Bluetooth name of the device
net.bt.name=Android

The dalvik.vm.stack-trace-file property allows you to specify the name of the file where the thread stack traces will be written.
dalvik.vm.stack-trace-file=/data/anr/traces.txt

This point stands for "Debug SurfaceFlinger Hardware" or GPU hardware acceleration
debug.sf.hw=1

Video Acceleration
video.accelerate.hw=1

Increase the touch responsive of the screen
debug.performance.tuning=1

Disable sending usage data
ro.config.nocheckin=1

Increase the quality of JPEG pics
ro.media.enc.jpeg.quality=100

increasing the recording quality of Pics and videos
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000

Here you can set the delay of time your phone starts to ring when you recieve a call. 0=disabled
ro.telephony.call_ring.delay=0

This point set the delay after a call. This fix Black screen issues.
ro.lge.proximity.delay=15
mot.proximity.delay=15

Next two points should safe some battery if they are enabled but the problem is that they are not in source code elsewhere and should have no effect. This means that adding this value to your build.prop will have no effect at all. This parameter is a kernel parameter and will only work when passed directly to the kernel on boot.
ro.ril.disable.power.collapse=0
pm.sleep_mode=1

Already explained
ro.config.nocheckin=1

For the last two points. These commands enable or disable the error profiler in the android. For most android users, there is no use in having error profiling . however , some applications might make use of this for generating error reports.
profiler.force_disable_err_rpt=1
profiler.force_disable_ulog=1