[TWEAKS][SCRIPTS] IMPROVE YOUR SAMSUNG DEVICE ! New Update – build.prop; init.d[ROOT]

That list contain a lot of scripts and tweaks collected by XDA

1 ) You Need a Rooted Device

2)  I Suggest TO DOWNLOAD Root Explore

Just save the build.prop or Ini file insiede yor pc and copy-paste the code you need directly on your build or prop file, than just put it back on your Device ! You can Also do it directly by device Using apps like Root Explore (click on RW to modify everything :)
 New UPDATE 28/8 New Performance Tweaks Update:
Follow them on xda

Build.prop
(edit your /system/build.prop with a file manager with root access)

Careful for already existing settings. In this case, just change the values.

Link Sponsorizzato :

Update 28/8

General Performance
debug.sf.hw=1
Edit existing line,
dalvik.vm.heapsize=48m
persist.sys.ui.hw=1

Faster Scrolling
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000

Saves power
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
windowsmgr.max_events_per_sec=60
wifi.supplicant_scan_interval=180

Raises quality of images
ro.media.enc.jpeg.quality=90
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000

Increased Media & Streaming Performance
media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=false
media.stagefright.enable-http=true
net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960 net.tcp.buffersize.wifi=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,163 84,256960

net.tcp.buffersize.evdo_b=4096,87380,256960,4096,1 6384,256960

Disable error checking (Should speed things up a bit)
ro.kernel.android.checkjni=0
ro.kernel.checkjni=0

Disable sending usage data
ro.config.nocheckin=1

To make the phone ring faster when dialing out
ro.telephony.call_ring.delay=0

Disable black screen issue after call (Thanks to Whyzor for finding why looking into the other tweaks)

ro.lge.proximity.delay=25
mot.proximity.delay=25

Disable USB Debugging icon from Status Bar. (Just the Icon, debugging remains enabled.)
persist.adb.notify=0

makes apps load faster and frees more ram. (Edit exsisting line)

dalvik.vm.dexopt-flags=m=v,o=y

Improve 3g data speeds

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

1. Force launcher into memory

Code:
ro.HOME_APP_ADJ=1

2. Raise JPG quality to 100%

Code:
ro.media.enc.jpeg.quality=100

3. VM Heapsize; higher the RAM, higher the hp can be

Code:
dalvik.vm.heapsize=48m

4. Render UI with GPU

Code:
debug.sf.hw=1

5. Decrease dialing out delay

Code:
ro.telephony.call_ring.delay=0

6. Helps scrolling responsiveness

Code:
windowsmgr.max_events_per_sec=150

7. Save battery

Code:
wifi.supplicant_scan_interval=180 pm.sleep_mode=1 ro.ril.disable.power.collapse=0

8. Disable debugging notify icon on statusbar

Code:
persist.adb.notify=0

9. Increase overall touch responsiveness

Code:
debug.performance.tuning=1 video.accelerate.hw=1

10. Raise photo and video recording quality

Code:
ro.media.dec.jpeg.memcap=8000000 ro.media.enc.hprof.vid.bps=8000000

11. Signal (3G) tweaks

Code:
ro.ril.hsxpa=2 ro.ril.gprsclass=10 ro.ril.hep=1 ro.ril.enable.dtm=1 ro.ril.hsdpa.category=10 ro.ril.enable.a53=1 ro.ril.enable.3g.prefix=1 ro.ril.htcmaskw1.bitmask=4294967295 ro.ril.htcmaskw1=14449 ro.ril.hsupa.category=5

12. Net speed tweaks

Code:
net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960 net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960 net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960 net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960 net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

13. Disable blackscreen issue after a call

Code:
ro.lge.proximity.delay=25 mot.proximity.delay=25

14. Fix some application issues

Code:
ro.kernel.android.checkjni=0

15. Phone will not wake up from hitting the volume rocker

Code:
ro.config.hwfeature_wakeupkey=0

16. Force button lights on when screen is on

Code:
ro.mot.buttonlight.timeout=0

17. Disable boot animation for faster boot

Code:
debug.sf.nobootanimation=1

18. Miscellaneous flags

Code:
ro.config.hw_menu_unlockscreen=false persist.sys.use_dithering=0 persist.sys.purgeable_assets=1 dalvik.vm.dexopt-flags=m=y ro.mot.eri.losalert.delay=1000

19. Specifics to some LG devices

Code:
persist.service.pcsync.enable=0 persist.service.lgospd.enable=0 user.feature.flex=true user.feature.lgdrm=false user.feature.lgresource=false user.feature.lgpoweroff=false user.feature.ls_event=false user.feature.ls_normal=false user.feature.sui=false

Init.d
(needs ROM with init.d access and busybox, open empty file, insert header #!/system/bin/sh and put these there, save in /system/etc/init.d and name it something like 77tweaks)

1. strict minfree handler tweak

Code:
echo "2048,3072,6144,15360,17920,20480" > /sys/module/lowmemorykiller/parameters/minfree

2. internet speed tweaks

Code:
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;

3. vm management tweaks

Code:
echo "4096" > /proc/sys/vm/min_free_kbytes echo "0" > /proc/sys/vm/oom_kill_allocating_task; echo "0" > /proc/sys/vm/panic_on_oom; echo "0" > /proc/sys/vm/laptop_mode; echo "0" > /proc/sys/vm/swappiness echo "50" > /proc/sys/vm/vfs_cache_pressure echo "90" > /proc/sys/vm/dirty_ratio echo "70" > /proc/sys/vm/dirty_background_ratio

4. misc kernel tweaks

Code:
echo "8" > /proc/sys/vm/page-cluster; echo "64000" > /proc/sys/kernel/msgmni; echo "64000" > /proc/sys/kernel/msgmax; echo "10" > /proc/sys/fs/lease-break-time; echo "500,512000,64,2048" > /proc/sys/kernel/sem;

5. battery tweaks

Code:
echo "500" > /proc/sys/vm/dirty_expire_centisecs echo "1000" > /proc/sys/vm/dirty_writeback_centisecs

6. EXT4 tweaks (greatly increase I/O)
(needs /system, /cache, /data partitions formatted to EXT4)

a) removes journalism

Code:
tune2fs -o journal_data_writeback /block/path/to/system tune2fs -O ^has_journal /block/path/to/system tune2fs -o journal_data_writeback /block/path/to/cache tune2fs -O ^has_journal /block/path/to/cache tune2fs -o journal_data_writeback /block/path/to/data tune2fs -O ^has_journal /block/path/to/data

b) perfect mount options

Code:
busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /system busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /data busybox mount -o remount,noatime,noauto_da_alloc,nosuid,nodev,nodiratime,barrier=0,nobh /cache

7. Flags blocks as non-rotational and increases cache size

Code:
LOOP=`ls -d /sys/block/loop*`; RAM=`ls -d /sys/block/ram*`; MMC=`ls -d /sys/block/mmc*`; for j in $LOOP $RAM do echo "0" > $j/queue/rotational; echo "2048" > $j/queue/read_ahead_kb; done

8. microSD card speed tweak

Code:
echo "2048" > /sys/devices/virtual/bdi/179:0/read_ahead_kb;

9. Defrags database files

Code:
for i in \ `find /data -iname "*.db"` do \ sqlite3 $i 'VACUUM;'; done

9. Remove logger

Code:
rm /dev/log/main

10. Ondemand governor tweaks

Code:
SAMPLING_RATE=$(busybox expr `cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency` \* 750 / 1000) echo 95 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold echo $SAMPLING_RATE > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate

11. Auto change governor and I/O Scheduler

a) I/O Scheduler (Best: MTD devices – VR; EMMC devices – SIO) – needs kernel with these

Code:
echo "vr" > /sys/block/mmcblk0/queue/scheduler or echo "sio" > /sys/block/mmcblk0/queue/scheduler

b) Governor (Best: Minmax > SavagedZen > Smoothass > Smartass > Interactive) – needs kernel with these

Code:
echo "governor-name-here" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

12. Auto-zipalign on boot
(needs zipalign bin)

13. Loopy Smoothness tweak

14. Move dalvik-cache to cache partition (if it’s big enough) to free up data partition space

Code:
CACHESIZE=$(df -k /cache | tail -n1 | tr -s ' ' | cut -d ' ' -f2) if [ $CACHESIZE -gt 80000 ] then echo "Large cache detected, moving dalvik-cache to /cache" if [ ! -d /cache/dalvik-cache ] then busybox rm -rf /cache/dalvik-cache /data/dalvik-cache mkdir /cache/dalvik-cache /data/dalvik-cache fi busybox chown 1000:1000 /cache/dalvik-cache busybox chmod 0771 /cache/dalvik-cache # bind mount dalvik-cache so we can still boot without the sdcard busybox mount -o bind /cache/dalvik-cache /data/dalvik-cache busybox chown 1000:1000 /data/dalvik-cache busybox chmod 0771 /data/dalvik-cache else echo "Small cache detected, dalvik-cache will remain on /data" fi

15. Disable normalize sleeper

Code:
mount -t debugfs none /sys/kernel/debug echo NO_NORMALIZED_SLEEPER > /sys/kernel/debug/sched_features

16. OOM groupings and priorities tweaks – SuperCharger

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

For improving GPS lock time and signal.

a) European NTP server (replace for america or asia in your case)

Code:
NTP_SERVER=europe.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

b) SE supl for A-GPS (better than Nokia’s or Google’s)

Code:
SUPL_HOST=supl.sonyericsson.com SUPL_PORT=7275

Other tweaks or guidelines

1. Patch your hosts file for blocking Ads
(please think before doing this; many developers are supported through this way)

Code:
You can use AdFree application for this or changing manually your hosts file.

Here are some databases:
http://www.mvps.org/winhelp2002/hosts.txt
http://pgl.yoyo.org/adservers/serverlist.php?showintro=0;hostformat=hosts

2. Use CyanogenMOD’s APN list file – it’s one of the most complete.

Code:
It's located in /system/etc/apns-conf.xml

3. Use UOT kitchen for basic theming on your device.

Code:
http://uot.dakra.lt/

4. Use Google’s dns servers

Code:
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/.

5. Update Superuser and su binary to latest version (3.0 beta)

Code:
http://goo-inside.me/superuser/

6. Disable sync feature in sqlite
(author: ownhere – needs a source for your device so you can compile the /system/lib/libsqlite.so)

Code:
Patch file here: http://forum.xda-developers.com
THE END 😀


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