[Mod] one stop for tweaks and other useful cool stuff
ok, from my android tweaking and playing around with all kinds of settings and other things i know it can be somewhat hard to find everything you might need to make the most of your android device so i will put links to them here along with providing support and my own little discoveries here...if anyone knows anything else that is cool or useful just post it and i'll update this post
first off how about my personal collection of droid 1 kernels and roms (with most of the build.prop tweaks listed here included) currently only raidzero recovery and an md5 sum calculator for windows but will upload roms later
my files
simple rooting/returning to stock guide-
quick root guide
1)download these files
http://www.motorola.com/staticfiles/Support/Experiences/Global_Drivers/MotoHelper_2.0.40_Driver_4.9.0.exe
http://wonderly.com/bb/DROID/OEM/rsdlite_5.0.msi
http://wonderly.com/bb/DROID/OEM/VZW_A855_QSC6085BP_RZRECOVERY_UPDATE.sbf
http://wonderly.com/bb/DROID/OEM/update.zip
2)install the first 2 links in order
3)connect your phone via usb to your computer and copy the update.zip you downloaded to your sdcard
4)reboot your phone and hold power + vloume up + the camera button until you see the screen that says bootloader battery ok
5)open rsd lite and see if it recognizes your phone (basically any entry in the model column) and slide your phone keyboard open
6) click the ... near the start button and navigate and select the VZW_A855_QSC6085BP_RZRECOVERY_UPDATE.sbf file
7)click start and WATCH FOR "Phone[0000]: Phone is being rebooted" On your phone the screen will change to "SW Update Complete" and your phone will reboot within a second or two. You want to be already holding the x button on your keyboard to boot into recovery mode when the phone actually reboots so the stock OS doesnt erase the new recovery you just flashed
8) using the volume keys to move through the menu, the camera button to select and the power button to go back, go to install and select the update.zip you put on your sdcard earlier and select install update.zip
9) then select "reboot into android" and enjoy the benefits of being rooted
return to stock
1)download these files
http://www.motorola.com/staticfiles/Support/Experiences/Global_Drivers/MotoHelper_2.0.40_Driver_4.9.0.exe
http://wonderly.com/bb/DROID/OEM/rsdlite_5.0.msi
http://wonderly.com/bb/DROID/OEM/VZW_A855_FRG22D_QSC6085BP_C_01.43.01P_SW_UPDATE.sb f
2)install the first 2 files
3)reboot your phone and hold power + vloume up + the camera button until you see the screen that says bootloader battery ok
4)connect your phone via usb to your computer and reboot your phone and hold power + vloume up + the camera button until you see the screen that says bootloader battery ok
5)open rsd lite and see if it recognizes your phone (basically any entry in the model column)
here are are some useful build.prop tweaks I've encountered along the way, just put the line into the build.prop or modify it if its already in there, save, wipe dalvik cache and reboot
6) click the ... near the start button and navigate and select the VZW_A855_FRG22D_QSC6085BP_C_01.43.01P_SW_UPDATE.sb f you downloaded earlier
7)click start and let it run and reboot automatically (it should work even if rsd lite says the result was fail)
8) you are now on stock unrooted froyo FRG22D
(optional) 9) go to settings > about phone> check for updates and allow system updates to download and install (allows for a super clean setup if you are planning to re-root)
for possibly better scrolling speed, can be set to any number from 35-300:
# This defines the max event window manager can
# handle in 1 s. We may adjust this # for performance
# reason later
windowsmgr.max_events_per_sec=
change lcd density (already in build.prop), which is like changing the resolution on a windows computer can be anywhere from 140 to 260 (under 200 not recommended because everything may be too small for the phone to be usable:
ro.sf.lcd_density=
dalvik cache virtual memory size (already in build.prop)...can also help performance. set anywhere from 24m to 64m based on how complex your setup is. i.e. tons of apps, in depth theme, memory intensive apps, etc.
dalvik.vm.heapsize=
incoming ringer delay (already in build.prop) sets how soon the phone starts ringing when a call comes in. set between 0 and 2000
ro.telephony.call_ring.delay=
proximity delay. sets how long before screen turns off during call. set between 0 and 600
# Proximit sensor screen off delay
mot.proximity.delay=
tcp stack- optimizes data performance
net.tcp.buffersize.default=6144,87380,1048576,6144 ,87380,1048576
net.tcp.buffersize.wifi=87380,1048576,2097152,8738 0,1048576,2097152
net.tcp.buffersize.lte=87380,524288,1048576,87380, 524288,1048576
net.tcp.buffersize.hsdpa=6144,87380,1048576,6144,8 7380,1048576
net.tcp.buffersize.evdo_b=6144,87380,1048576,6144, 87380,1048576
net.tcp.buffersize.umts=6144,87380,1048576,6144,87 380,1048576
net.tcp.buffersize.gprs=6144,87380,1048576,6144,87 380,1048576
net.tcp.buffersize.edge=6144,87380,524288,6144,163 84,262144
net.tcp.buffersize.hspa=6144,87380,524288,6144,163 84,262144
enable hardware acceleration
# Render UI through GPU instead of CPU
# Comment out if this causes laggy UI (it should speed up UI)
debug.sf.hw=1
sleep mode for battery savings. 0 means power collapse suspend, 1 is power collapse (usually the best choice), 2 is apps go to sleep, 3 is show clock and wait, 4 is wait for interrupt...not sure which each one does or is good for, just know about this little tweak lol
# Battery Savings (Sleep Mode)
pm.sleep_mode=
more battery savings
# When moving through zones or losing signal, having a delay
# smooths out constant disconnects and reconnects, which in turn
# saves a ton of battery life!
ro.mot.eri.losalert.delay=1000
disable sending usage data
ro.config.nocheckin=1
wifi scan interval (already in build.prop) can save battery as well. set from 15 to 999
# Time between scans in seconds. Keep it high to minimize battery drain.
# This only affects the case in which there are remembered access points,
# but none are in range.
wifi.supplicant_scan_interval=
ok, now for some useful links (all credit goes to the creators of these cool tweaks/apps/programs
v6 supercharger by zepplinrox http://forum.xda-developers.com/showpost.php?p=18703418&postcount=5021
Deodex/odex tweak by Nibras, Reeza & Danzano (thanks to BrUhNiGGs for finding this) http://www.droidforums.net/forum/steel-droid/200388-ram-tweak-free-up-more-ram-make-apps-load-faster.html
setcpu for free (legitimately legal lol) SetCPU for Root Users [2.2.4] Undervolting and more 07/07/2011 - xda-developers
wifi tethering app Downloads - android-wifi-tether - Wireless Tether for Root Users - Google Project Hosting
wired tethering app Downloads - android-wired-tether - Wired Tether for Root Users - Google Project Hosting
easy install of adb (credit to ChevyNo1) http://www.droidforums.net/forum/chevyno1/162984-your-1-adb-source-7-29-11-a.html
Guide to building a rom from source (credit to chevycam and SnkBitten)http://www.droidforums.net/forum/steel-droid/196475-guide-how-build-your-own-rom-cm7-source.html
cool version of droidforums app http://www.droidforums.net/forum/droid-themes/178809-xparent-heavily-themed-droidforums-blue-app-b-boy-droid-does.html
Ok, here's a new section with just general tips, tricks and scripts
Useful terminal emulator scripts run as superuser (su)
*Using the debugging logging to report issues
Code:
logcat > /mnt/sdcard/logcat.txt
wait 4-5 seconds then hold volume up and press f on the keyboard to stop it
if logcat is disabled then do this instead
Code:
dmesg > /mnt/sdcard/dmesg.txt
wait 4-5 seconds then hold volume up and press f on the keyboard to stop it
*Find top CPU/memory using apps. value after -m is how many apps to show, value after -n is how many times to update (be sure to set this value or it will run endlessly until terminal is closed)
*Find md5sum for downloaded files (checks to ensure proper downloads especially for roms, just compare your result to whatever value the rom developer provides and they should match)
Code:
md5sum /mnt/sdcard/(file path on sdcard)
For example
Code:
md5sum /mnt/sdcard/download/SD_9.0.0.zip
*Use swap partition without swapper2.
Add this script to the end of any file in the /etc/init.d folder. If you don't have one just run it in terminal emulator each reboot and run it in terminal first since sometimes its mmcblk0p2 instead of mmcblk0p3 depending on where you have the swap partition (or use the app script manager to make it run at boot. Script manager doesn't run continuously like swapper2)
Code:
swapon /dev/block/mmcblk0p3
And to turn swap off
Code:
swapoff /dev/block/mmcblk0p3
*Setting swappiness
Add or edit this line in the file etc/sysctl.config using whatever value you want, just keep the spaces (open in text editor)
vm.swappiness = 30
Or add this to the end of a script in init.d or run in terminal emulator
Code:
sysctl -w vm.swappiness=30
*Loading a module for apps2sdext (link2sd style apps2sd)
Run this in terminal emulator with superuser permission, substituting ext3 for whatever extension you want loaded (keep the .ko though)
Code:
insmod /system/lib/modules/ext3.ko
or
*Listing loaded modules
Run this in terminal emulator with superuser permissions
*Forcing a hot reboot to clear caches
Run this in terminal emulator with superuser permissions
*terminal tips-
Find list of many possible scripts to run
List sysctl commands
List first or last 10 lines of another scripts output (note | is not lower case L, its a separate character)
First 10-
Last 10
Example (list first 10 sysctl values)
Finding lines with certain letters/word in another scripts output
Code:
(script) | grep (letters/word)
Example (show only sysctl lines with vm in them) (note | is not lower case L, its a separate character)
Code:
sysctl -a | grep vm
Don't worry more to come soon :)
Ok, those are the well tested tweaks, now for a few experimental ones. Please make sure to have a backup ready to restore since these ARE experimental and may cause your rom not to load
improve peformance????
Add this to the build.prop
#disable the zygote loader
ro.wmt.blcr.enable=0
Fix app issues? (change it to 0 to improve performance)
Add this to build.prop
ro.kernel.android.checkjni=1
Change the I/O scheduler (effects how your phone reads and writes data)(first line tells you whats available and what you currently have in [ ], then put whichever one you want in the "" after echo, and the last line will confirm the change)
Code:
cat /sys/block/*/queue/scheduler
for i in /sys/block/*/queue/scheduler
do
echo "deadline" > $i
done
cat /sys/block/*/queue/scheduler
Increse overall touch resposivness?
Add these to build.prop
debug.performance.tuning=1
video.accelerate.hw=1
ro.min_pointer_dur=8
Raise Photo and video quality?
Add these to build.prop
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
Improve performance?
change in build.prop
ro.setupwizard.mode=DISABLED
change sdcard buffer speed
run in terminal emulator as superuser (su) or put #!/system/bin/sh as first line and put in /system/etc/init.d (you can change the value in the "echo 512 > /sys/devices/virtual/bdi/179:0/read_ahead_kb" line to suit your needs- common values are 256, 512, 1024, 2048, 3072, 4096, 5120, 6144)
Code:
for i in /sys/devices/virtual/bdi/*
do
echo 2 > $i/read_ahead_kb
done
echo 2048 > /sys/devices/virtual/bdi/179:0/read_ahead_kb
echo 2 > /sys/devices/virtual/bdi/default/read_ahead_kb
or you can try just simply using the simple version
Code:
echo 2048 > /sys/devices/virtual/bdi/179:0/read_ahead_kb
Rom dependent tweaks (will only work if these features are included in your rom, most of the time they are but if not sure then ask the dev) add these to build.prop, 1 is on 0 is off
help to free up unused ram-
persist.sys.purgeable_assets=
stop usb debugging on notification-
persist.adb.notify=
Force capacitive buttons to stay on while screen is on-
ro.mot.buttonlight.timeout=
Improve screen quality at the cost of performance-
persist.sys.use.dithering=
Disable boot animation (use caution after wiping dalvik, it will appear to hang at the M but its usually still booting up all the way)
dev.sfbootcomplete=0
Use dalvik JIT compiler (Just In Time compiler is much faster)
dalvik.vm.execution-mode=int:jit
