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Recently Samsung released Android 4.1.2 XXEMH4 for Galaxy S3 International version (GT-I9300). The update is available through OTA and Kies for the users of India, Sri Lanka, Bangladesh and Nepal. May be this is the final version of Android 4.1.2 for the following countries before the upcoming Android 4.3 update .The update include some battery and performance tweaks.

In this I included the steps to manually flash Android 4.1.2 Jelly bean XXEMH4 to Galaxy S3 I9300 International version using Odin.

Firmware Details
PDA: I9300XXEMH4
CSC: I9300ODDEMI2
MODEM: I9300DDEMG2

Note :
1. Backup your important data.
2. Enable USB debugging in your phone.
3. Battery must have 60% or more charge.
4. Disable or Exit Antivirus and Kies if you are installed.
5. Your PC must install Kies or Galaxy S3 driver.
6. This Firmware is only for Galaxy S3 I9300 International Version.

How To Flash Official Android 4.1.2 I9300XXEMH4 in Galaxy S3 I9300 using Odin ?

1. Download Official Android Jelly Bean 4.1.2 I9300XXEMH4 for your country from below links.
  India | Sri Lanka | Bangladesh | Nepal
2. Extract the downloaded firmware zip.
3. Download Odin v1.85 - Download
4. Now, Extract and Open odin3 v1.85.exe.
5. Power off your phone.
6. Now boot in to download mode. ( Press and hold : Volume down key and Home button ( Center button ) ,now press and hold the power button to boot in to download mode and Press Volume up on Warning)
7. In download mode connect your phone to PC.
8. Now look in to Odin... ID:COM box, it will be yellow with a port name and Added! message will be displayed.
( If not it will the problem of driver or USB ... check both )



9. In Odin..Click PDA and browse the extracted firmware folder and select I9300XXEMH4_I9300ODDEMI2_I9300DDEMG2_HOME.tar.md5 finally Click Start button.



10. After complete update Odin will show PASS on top left and phone will reboot. now unplug phone from USB.



Thats it .... Done .

Note :
If the phone stuck at the boot screen...
1. Remove and reinsert your battery.
2. Now boot into recovery mode. (Volume up + Home + Power )
3. Apply wipe data/factory reset.
4. Apply wipe cache partition.
5. Finally reboot system...

Done !

Go to the below post to root the firmware

How To Root Samsung Galaxy S3 Jelly Bean 4.1.2 XXEMH4 ?

Penjelasanya dalam bahasa Inggris, aku gag terlalu paham :

Samsung started rolling out Android 4.1.2 to Galaxy S2 International variant (I9100). So far this is the major update to Galaxy S2 by Samsung. Through Kies or OTA this Official update is available only for some selected countries.

If your phone not showing any update dont worry , Samsung will provide the update very soon to Your country or you can manually install the update by following the simple steps here.

Some great features in the new Jelly Bean Update:
- Buttery Smooth Performance & Great Stability
- Full User Interface Revamp (Same UI as of the Galaxy S III and Galaxy Note II)
- TouchWiz Nature UX
- S Cloud services by Samsung
- Improved Camera features
- New Lockscreen With Many Customization Options
- New Features like Direct Call, Smart Stay and Pop-up Play
- New Widgets (From Galaxy S III)
- 2 Home screen modes
- New Notification bar With More Notification Toggles
- Google Now

Firmware Details:
Android Version: 4.1.2 – Build JZO54K
PDA: I9100XWLS8
CSC: I9100FOPLS3
MODEM: I9100XXLS8
Changelist: 816988
Build Date: 14 January 2013

Must Note :
1. This update only for Samsung Galaxy S2 International variant I9100
2. Make sure that your phone is factory unlocked not locked for specific carrier
3. Backup All the Data in your Phone
4. Your Phone Charge Must Be 80% or above
5. Enable USB Debugging
6. Make sure you have installed Kies or S2 driver
7. Exit Antivirus, Kies etc .. before start flashing.

How To manually update Galaxy S2 I9100 to Official Android Jelly Bean 4.1.2 XWLS8?

1. Search Samfirm to download the Specific 4.1.2 to your country Or Download Galaxy S2 4.1.2 XWLS8 (Spain) firmware and Extract it to PC
2. Download Odin3 v1.85 and Extract it
3. Power off and boot Galaxy S2 in to download mode. ( Volume down + Home + Power )
4. In download mode connect your phone to PC.
5. Now Open Odin 1.85 and look in to ID:COM box it will be yellow with a port name and a "Added!" message will be displayed in Message box.
6. In Odin..Click PDA and select I9100XWLS8_I9100XXLS8_I9100FOPLS3_HOME.tar.md5 from Extracted firmwares folder.

7. Click Start button. Odin will show PASS on top left and phone will reboot.

Thats it done ....You are succefully flashed your Galaxy S2 to Official Android Jellybean 4.1.2.
If you face boot loop after flashing ...go to recovery mode and do a factory reset and wipe cache....done...

ROOT FOR GALAXY S2 4.1.2 XWLS8 IS AVAILABLE HERE

Yesterday i was posted How To Flash Official Android Jelly Bean 4.1.2 XWLS8 on Galaxy S2 I9100 ? as a continuation of that post ,today i am writing the method to root the Galaxy S2 Official Jelly Bean 4.1.2 XWLS8 update. Like the previous root methods i was posted here .. this method also simple and secure as it is not using any root tools or insecure kernel.

The method is simple .. just install the provided zip package from stock recovery. The zip package is created by XDA senior member PhilZ.(thanks for making this).Please check the firmware details..... if your phone have the same firmware below then you can install this zip in your phone..otherwise dont try it.

Firmware Details:
Android Version: 4.1.2 – Build JZO54K
PDA: I9100XWLS8
CSC: I9100FOPLS3
MODEM: I9100XXLS8

Must Note:
- This root package is only for International Galaxy S2 I9100 Android 4.1.2 XWLS8.
- Backup Impotent Data.
- Battery Charge Must be 60% or above.

* Rooting may void warranty or it may brick your phone ..we are not responsible for anything ..do at your risk.

Root Galaxy S2 Official Jelly Bean 4.1.2 XWLS8

1. Download 4.1.2 XWLS8 Root zip package from here (v4.0 B22)
2. Copy the downloaded zip package XWLS8-ROOT-CWM6.zip to external SD card.
3. Switch off your phone and wait till vibrate.
4. Boot in to stock recovery ( Volume up + Home + Power )
5. In recovery select apply update from external storage.



6. Select copied zip file XWLS8-ROOT-CWM6.zip



Thats it...Now you are successfully rooted Galaxy S2 I9100 Jelly Bean 4.1.2 XWLS8.