Tuesday, 28 May 2013

How To Install Android 4.1.2 Jelly Bean XWLSU Official Firmware update for the Samsung Galaxy S2 I9100

Another new official firmware has been released by Samsung for Galaxy S2 International variant. This new firmware is named XWLSU 4.1.2 Jelly Bean and it is built on the Android 4.1.2 Jelly Bean platform. During our present tutorial, you’ll learn all the instructions that you need in order successfully update the S2 International variant with this latest firmware.
Use this step by step guide only for the S2 International variant devices which want to flash an official Android Jelly Bean on it. This guide is provided only for the advanced users who know what to do with their device and have a rich experience in flashing Android devices.
This latest Android 4.1.2 Jelly Bean XWLSU update has been pushed out by OTA automatically notification from Samsung. This tutorial can be used by the S2 device’s users, who didn’t receive the OTA notification, or have a device which is running a custom ROM or is a rooted device, so this guide is a manually method to update the Samsung Galaxy S2 International variant device with the latest Android 4.1.2 Jelly Bean XWLSU firmware.
After you’ll install this new update (Android 4.1.2 XWLSU Jelly Bean) you can enjoy  its features such us Nature UX with TouchWiz interface, new way to receive the notifications, new widgets and toggles, new lock screen functions and customizations, a better stability and optimizations comparing with the old one version.
Before beginning our step by step manually flashing guide, you need to follow some prerequisites that are necessary before to flash the new firmware.
  • Firstly, this tutorial is compatible and works only with Samsung Galaxy S2 model number I9100. So, knowing this thing do no try to use the same for any other device, you can end up the tutorial by bricking or damage your device.
  • Make sure your device is a factory unlocked device.
  • Your device need to be a rooted device and running a custom recovery image such as CWRM or TWRP, in this tutorial will be used the CWR custom recovery image (ClockworkMod)
  • Backup all your data and application stored in your device’s internal memory.
  • Perform a full backup for your actual ROM which is running in your device, to do that use NANDROID backup option. This backup will represent a restore point for your OS, in case your S2 device won’t to boot with the new firmware.
  • Enable the USB debugging option from your Android OS, to do that navigate on the Developer Options menu.
  • Install the suitable USB drivers for the S2 device on your computer.
  • Verify the level of power in the device’s battery and make sure you have more than 80% power left to be sure your device won’t get a forced power off during the installation process.
  • Uninstall/ disable the security programs that are running in your PC and the device, programs such as Samsung Kies, Antivirus, and firewall.
  • We provide all these information and instructions from this article only for educational and instructional purposing, so do not blame us in case something goes wrong, brick, loose data or damage your device applying, during, or after you use this guide.
  • Make sure you don’t skip any step from our article.
I think these are all prerequisites that you need to follow in order successfully prepare your device for the next section where you’ll learn how to flash stock Android 4.1.2 XWLSU Jelly Bean for Galaxy S2 I9100 device.

How to update the Samsung Galaxy S2 I9100 to official Android 4.1.2 XWLSU Jelly Bean:

  1. Firstly, download the Android 4.1.2 XWLSU Jelly Bean I9100XWLSU zip file from below:
    > For Austria download XWLSU Jelly Bean I9100XWLSU from here.
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    > For Spain download XWLSU Jelly Bean I9100XWLSU from here.
  2. Secondly, when the download is done you need to extract the downloaded archive file on your PC, you should have a .tar.md5extension file, don’t apply another extract for it.
  3. Thirty, download the ODIN 3.04 app, this application will be used for installing the firmware file.  Now, extract the ODIN archive in your PC.
  4. Now, power off your Android Samsung Galaxy S2 device, remove its battery after the S2 device has been totally shut down and wait 10 seconds with the battery removed, now re-insert the battery in its place.
  5. Open the Odin exe file on your PC.
  6. Now, boot your S2 device into Download Mode. For doing that you need to press and keep holding, in the same time the next combination of buttons: Volume Down, Home and Power buttons. When a warning message will be showed on the screen, release the buttons and after that press on the Volume Up button for confirming the Download Mode menu.
  7. Connect your S2 device to the PC using the USB data cord for doing that.
  8. Now, just look on the ODIN interface and make sure the ODIN will say ‘added!!’ message to move to the next step. IF ODIN app doesn’t display the ‘added!!’ message you have to reinstall the USB drivers again and change the USB port from the PC.
  9. Now, using the ODIN app click ‘PDA’ button, browse the extracted I9100XWLSU tar.md5 file and load it in the ODIN app.
  10. Make sure that you don’t make any changes in the ODIN default settings. Make sure that the re-partition’ option is not cheeked (enabled).
  11. Now, click START button from ODIN when you want to begin the installation process.
  12. Wait to ODIN complete the flashing process, it can take a couple of minutes, don’t touch anything
  13. When the firmware flashing is complete, your device will get an automatically reboot.
  14. When the Samsung Logo (boot animation) appears you can disconnect the device from the PC.
  15. Wait until your S2 device will boot into normal mode and begin to test and use the new Android 4.1.2 XWLSU Jelly Bean firmware.
Congratulation, you successfully learned how to update your S2 International variant device with the latest Android 4.1.2 XWLSU Jelly Bean firmware.
  • If the ODIN app says ‘Fail ‘ or your S2 device is entering into a boot loop, or freeze then you have to do:
  1. Firstly, Power off the S2 device.
  2. Secondly, disconnect the S2 device from the PC by removing its USB cord.
  3. Thirty close the ODIN app.
  4. Next, repeat the present tutorial from the beginning.
  • If the ODIN app says “Pass” but your S2 device isn’t able to past the boot sequence when the Samsung Logo boot animation appears, then you have to do a factory reset for your Samsung S2 device. This action will delete all the data which are stored in device’s system memory and partition. To do that follows the next steps:
  1. Firstly, power off the Samsung Galaxy S2 device, and after the power off is completely down, remove its battery.
  2. Secondly, reinsert the device’s battery after you’ve waited 10 seconds in its location.
  3. Thirty boot the S2 device into Recovery Mode Menu; to do this thing you need to press and keep holding the next buttons simultaneous: Volume Up, Home and Power button.
  4. From the Recovery Mode menu, select the ‘wipe data/ factory reset’ option and confirm this action.
  5. Now, return to the main Recovery Mode menu, and from there select the ‘reboot system now’ option.
  6. Your Samsung Galaxy S2 device will boot into normal mode with the new firmware installed on it.
Note: when you’ll apply a factory reset from the Recovery mode, you’ll lose the data stored in the device’s internal memory and for this reason you need a full backup for your data.
 NAIRATECH are not responsible for any damages that may happened due to using this guide



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