0 Jelly Bean adb install *.apk Failure [INSTALL_FAILED_INVALID_APK]

If you have been moved recently to Jelly Bean and you use stock kernel(check kernel version on the screenshot) you might have some strange problems with adb and install command.

Every time I tried to use adb install test.apk on my i9300 I got Failure [INSTALL_FAILED_INVALID_APK].

The solution for this this problem is very simple,just change your kernel!
Seems like stock kernel have some strange issues,
you can read more in this xda forum thread.

After I moved to SiyahKernel S3-v1.6.8 this problem was solved.

0 Don't install last Jelly Bean leak I9300XXDLH8!

Latest Jelly Bean leak I9300XXDLH8 for international version of Samsung Galaxy S 3 i9300 have WiFi and memory issues.

- Was unable to connect to my home network.
- UI lags.
- Downgrade back to 4.0.4 was painful.

Don't flash it!

0 Official Jelly Bean For Galaxy S 3 i9300

According to SamMobile sources,official Jelly Bean for Galaxy S 3 i9300 will be released on 29 august.
Firstable Europe & Asia will get the update.

Keep your eyes opened for a leak that can appear soon.

1 Cyanogenmod 9 (CM9) for Galaxy S3 i9300 Stable Release

Cyanogenmod team finally released CM 9 stable version tonight!!!
That means that CM 9 development is finally finished and that CM team will focus solely on Jelly Bean(CM 10) and maintenance of the CM 7 codebase.

From CM team blog :

 "Many have wondered why we bothered to finish CM 9 when we are already active in CM 10 development. To that, our answer is: we don’t like to leave things incomplete. There is no profit gained from what we do, so the satisfaction of completing a goal is our only reward. This release also serves as a release suitable for the masses, especially those who won’t have 100% functioning releases of CM 10 immediately or are averse to anything branded as ‘preview’, ‘alpha’, ‘beta’ or ‘nightly’." 

You can get Stable CM9 for Samsung Galaxy S 3 i9300  (only international version) from here and the latest  gapps(google apps pack) here.

Known disadvantages :

- Camera app is very basic (Stock one is better,for example can't take photos while shooting video & e.t.c)

0 Black version of Galaxy S 3 i9300

Black version of Galaxy S 3???
New pictures leaked.

Check Samsung Mobile Facebook Page!

1 How to disable automatically add of home screen widgets/icons for new apps

By default each new application install "Play Store" creating widget/icon on your home screen.

To disable this annoying feature :

- Open "Play Store"

- Open menu by pressing left button at the bottom of your phone

- Choose "Settings"

- Now just disable "Auto-add widgets"

0 Hot to access Task Manager

By default to access Task Manager you need to long press Home button and than to press Task Manager button.

However you can just use Task Manager Shortcut.

This tiny application will create direct shortcut for Task Manager in your installed applications list.

0 How to disable Kies

d8389 from XDA has discovered that process /system/bin/kiesexe produce zombies and eat a lot of  memory.

The quick fix to remove all permissions from this binary using file browse or ADB & restart(Kies will not work).

To re-enable it just CHMOD it to 775.

0 How to discover WiFi credentials

Its very easy to discover WiFi credentials of networks that your phone was already connected to.

All you need to do is to open "/data/misc/wifi/wpa_supplicant.conf" file.

You can use ADB to pull this file out or you can just use Root Explorer or other file explorer on your phone. 

You will get all configured WiFi networks with SSID,Password,Encryption Type & Priority.

P.S. : Or you can use this nice tool to discover WiFi Credentials.

0 How to protect your phone from stealing

Of course you can't to protect your phone from stealing,

but if some one steals your phone you can find him by coordinates and thief picture.

There are a lot of anti thief applications in Google Play,some of them are free and some paid.

In my opinion the best choice will be ☆ GotYa! Face trap !.

This app price £1.99,but you will get this following awesome features :

- Take a picture on every failed login

- SMS commands like :

* Location Request

* Play Alarm

* Callback Request

* Display Message

* Lock Device

* Unlock Device

* Enable Screen Triger

- SIM change notification

- Email notifications

- Facebook notifications

- GEO coordinates

And much more!

Other free applications are :

- Plan B (GEO location,SMS Commands)

- Prey Anti-Theft (Web Administration Panel,GEO location every 20 minutes)

There are more anti thief applications on market that you can try and write here in comments your opinion.

0 How to discover APK's package name,version.permissions and e.t.c.

To discover *.apk package name,permissions,version and e.t.c. before installing it on the device,
all you need is to download & install Android SDK (if you already don't have one).

Go to your "X:\android-sdk\platform-tools" and run in CMD "aapt.exe dump badging [APK PATH]".
This will print in CMD all the info.

If you don't want to install Android SDK the easiest way for you will be to find the application on Google Play.
For example search for "Angry Birds" the link in Google Play will be :

https://play.google.com/store/apps/details?id=com.rovio.angrybirds&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5yb3Zpby5hbmdyeWJpcmRzIl0.

As you see this is another way to get only the package name of application.

P.S. : Don't forget that you always can check additional flags of executable by executing it without parameters,for example "aapt.exe".

0 How to manually upgrade firmware to I9300XXBLG8(2012-07-26)

PDA: I9300XXBLG8
CSC: I9300OXABLG8
Version: 4.0.4
Date: 2012-07-26
Regions: Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom

For international version of I9300 only.

If you don't know what are you doing please stop here,

I don't want to be responsible for any damage that can cause by this guide!

Download the firmware from here and extract downloaded archive file.

Now you need to download ODIN,

If you have SAMSUNG GALAXY S3 TOOLKIT installed just open "X:\Samsung Galaxy S3 ToolKit" folder and open "Odin3_v3.07.exe".

Power off your galaxy,

press Volume Up + Home + Power button to boot to download mode,

than connect your galaxy via USB cable to your PC.

Now press "PDA" and choose the extracted 

"I9300XXBLG8_I9300OXABLG8_I9300XXLG8_HOME.tar.md5" (it will take up to 2 minutes).

Finally you will get screen like this :

Press "Start" (it will take up to 5 mins).

Finally after reboot you will get the newest official Samsung ROM.

To get root back and custom boot loader please follow this guide. 

0 Useful ADB & Shell Commands

Useful ADB(Android Debug Bridge) & Shell Commands list :

adb shell => opens shell
su => change to super user
adb install [APK PATH] => install apk
adb uninstall [PACKAGE NAME] => uninstall apk
pm disable [PACKAGE NAME] => disable package
pm enable [PACKAGE NAME] => enable package
pm packages list -d => list disabled packages
pm packages list -s => list only system packages
am broadcast -a [INTENT NAME] --es [EXTRA KEY] [EXTRA VALUE] => broadcast intent with extras
cd [PATH] => change directory
cd - => go back
cd -- => go to home directory
ls => list files
du -a -m -h => list files &directories show sizes
adb reboot => reboot
adb reboot recovery => reboot to recovery mode
adb reboot download => reboot to download mode
cp [SOURCE] [DESTINATION] => copy file
mkdir [DIRECTORY PATH] => create directory
rmdir [DIRECTORY PATH] => delete directory
rm [PATH] => delete file
getprop => list device properties
setprop [KEY] [VALUE] => set device property
killall [APPLICATION NAME] => kill application by name
df –h => Display disk space usage

P.S. : I'm sure that I will update this post with other ADB commands soon.
You can find the adb tool in <sdk>/platform-tools/.

0 How to disable OTA Updates

If you want to disable annoying notifications about software(firmware) updates this guide is for you.

To disable OTA updates your galaxy need to be rooted.

If you have Android SDK installed :

- Connect your galaxy with USB cable

- Run cmd and type :

adb shell
su
pm disable com.sec.android.fotaclient
pm disable com.sec.android.fwupgrade

Another way is to use any file explorer to access /system/app folder and to remove from there this 2 files :
FotaClient.apk
FWUpgrade.apk

Restart your galaxy and it's gone!

0 How to take screenshot on Samsung galaxy s3 I9300

0 How to root Samsung Galaxy S 3 i9300

Rooting operation is very easy ,however you need to read and follow the instructions carefully.
We will use "THE SAMSUNG GALAXY S3 TOOLKIT".
You can download it from official xda thread (read all additional information there).
Note : You need a PC with Windows OS.

Lets r00t :

1) Open Samsung GS3 ToolKit vX.X
2) Install SGS3 Drivers on your PC [DO THIS FIRST] [#1]
3) Connect your phone via USB cable
4) Rooting Options [#2]
5) ALLINONE [Flash Insecure Boot, CWM Touch, Root, + Install Busybox] [#3]
6) Type "yes"
7) Odin will pop up (just follow the instruction from ToolKit)
8) Phone will reboot now
9) Your phone is rooted!

That's all!