[LG Revolution] spc_hicks09:
PLEASE READ ENTIRE POST BEFORE TRYING ANY OF THESE TWEAKS!!!

This post is kind of a mash-up from 2 or more other posts here at XDA that I thought would be helpful to have here. The first ones will be Build.prop tweaks and some 3G tweaks. After that will be some 4G tweaks.

Before you do anything like this, make sure you rename your original build.prop file to "build.prop.bak" just in case.

Original Threads Can Be Found Here:

http://xdaforums.com/showthread.php?t=1227269

Can't find the other thread now but will post link as soon as I can find it.

Many of these build.prop tweaks are already implemented. So you might not need them all. If you do not have some of these lines already in your build.prop file, all you need to do is add them at the bottom of your build.prop.

Highlighted in red, is what you need to change if it is not already set to this.

Build.prop Tweaks:

Force launcher into memory:

ro.HOME_APP_ADJ=[COLOR="Red"]1[/COLOR]

Raise jpg quality to 100%:

ro.media.enc.jpeg.quality=[COLOR="Red"]100[/COLOR]

Render UI with GPU:

debug.sf.hw=[COLOR="Red"]1[/COLOR]

Decrease dialing out delay:

ro.telephony.call_ring.delay=[COLOR="Red"]0[/COLOR]

Improve scrolling responsiveness:

windowsmgr.max_events_per_sec=[COLOR="Red"]150[/COLOR]

Save some battery life:

wifi.supplicant_scan_interval=[COLOR="Red"]180[/COLOR]
pm.sleep_mode=[COLOR="Red"]1[/COLOR]
ro.ril.disable.power.collapse=[COLOR="Red"]0[/COLOR]

Disable USB Debugging notification icon:

persist.adb.notify=[COLOR="Red"]0[/COLOR]

Increase overall touch responsiveness:

debug.performance.tuning=[COLOR="Red"]1[/COLOR]
video.accelerate.hw=[COLOR="Red"]1[/COLOR]

Raise photo and video recording quality:

ro.media.dec.jpeg.memcap=[COLOR="Red"]8000000[/COLOR]
ro.media.enc.hprof.vid.bps=[COLOR="Red"]8000000[/COLOR]

3G Tweaks:

ro.ril.hsxpa=[COLOR="Red"]2[/COLOR]
ro.ril.gprsclass=[COLOR="Red"]10[/COLOR]
ro.ril.hep=[COLOR="Red"]1[/COLOR]
ro.ril.enable.dtm=[COLOR="Red"]1[/COLOR]
ro.ril.hsdpa.category=[COLOR="Red"]10[/COLOR]
ro.ril.enable.a53=[COLOR="Red"]1[/COLOR]
ro.ril.enable.3g.prefix=[COLOR="Red"]1[/COLOR]
ro.ril.htcmaskw1.bitmask=[COLOR="Red"]4294967295[/COLOR]
ro.ril.htcmaskw1=[COLOR="Red"]14449[/COLOR]
ro.ril.hsupa.category=[COLOR="Red"]5[/COLOR]

Net speed tweaks:

net.tcp.buffersize.default=[COLOR="Red"]4096,87380,256960,4096,16384,256960[/COLOR]
net.tcp.buffersize.wifi=[COLOR="Red"]4096,87380,256960,4096,16384,256960[/COLOR]
net.tcp.buffersize.umts=[COLOR="Red"]4096,87380,256960,4096,16384,256960[/COLOR]
net.tcp.buffersize.gprs=[COLOR="Red"]4096,87380,256960,4096,16384,256960[/COLOR]
net.tcp.buffersize.edge=[COLOR="Red"]4096,87380,256960,4096,16384,256960[/COLOR]

Disable blackscreen issue after a call:

ro.lge.proximity.delay=[COLOR="Red"]25[/COLOR]
mot.proximity.delay=[COLOR="Red"]25[/COLOR]

Fix some application issues (fc's):

ro.kernel.android.checkjni=[COLOR="Red"]0[/COLOR]

Phone will not wake up from hitting the volume rocker:

ro.config.hwfeature_wakeupkey=[COLOR="Red"]0[/COLOR]

Change this value to "1" to enable it.

Force button lights on when screen is on:

ro.mot.buttonlight.timeout=[COLOR="Red"]0[/COLOR]

Disable bootanimation for faster boot-up time:

debug.sf.nobootanimation=[COLOR="Red"]1[/COLOR]

Specific to SOME lg devices:

persist.service.pcsync.enable=[COLOR="Red"]0[/COLOR]
persist.service.lgospd.enable=[COLOR="Red"]0[/COLOR]
user.feature.flex=[COLOR="Red"]true[/COLOR]
user.feature.lgdrm=[COLOR="Red"]false[/COLOR]
user.feature.lgresource=[COLOR="Red"]false[/COLOR]
user.feature.lgpoweroff=[COLOR="Red"]false[/COLOR]
user.feature.ls_event=[COLOR="Red"]false[/COLOR]
user.feature.ls_normal=[COLOR="Red"]false[/COLOR]
user.feature.sui=[COLOR="Red"]false[/COLOR]

GPS.config

(create or edit your /system/etc/gps.conf with a file manager with root access)

For improving GPS lock time and signal.

NTP_SERVER=america.pool.ntp.org
XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin
XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin

SE supl for A-GPS (better than Google's)

SUPL_HOST=supl.sonyericsson.com
SUPL_PORT=7275

Other Various Tweaks

Use Google's DNS servers:

Create an empty file, name it resolv.conf and put there these 2 lines:

nameserver 8.8.8.8
nameserver 8.8.4.4

Save to /system/etc/.

New Tweaks Added 2/28/2012

Stream Videos Faster:

media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=true
media.stagefright.enable-http=true
media.stagefright.enable-record=false

Make phone ring faster when dialing out:

ro.telephony.call_ring.delay=800

Reduce RAM usage by approx. 15% at startup:

dalvik.vm.startheapsize=4m

Internet Speed Tweaks:

echo "0" > /proc/sys/net/ipv4/tcp_timestamps;
echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse;
echo "1" > /proc/sys/net/ipv4/tcp_sack;
echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle;
echo "1" > /proc/sys/net/ipv4/tcp_window_scaling;
echo "5" > /proc/sys/net/ipv4/tcp_keepalive_probes;
echo "30" > /proc/sys/net/ipv4/tcp_keepalive_intvl;
echo "30" > /proc/sys/net/ipv4/tcp_fin_timeout;
echo "404480" > /proc/sys/net/core/wmem_max;
echo "404480" > /proc/sys/net/core/rmem_max;
echo "256960" > /proc/sys/net/core/rmem_default;
echo "256960" > /proc/sys/net/core/wmem_default;
echo "4096,16384,404480" > /proc/sys/net/ipv4/tcp_wmem;
echo "4096,87380,404480" > /proc/sys/net/ipv4/tcp_rmem;

Hope all this helps some of you!! Just a warning, if you ask questions, I might not be able to answer it. Just wanted to let you know!!