How to Update Samsung Galaxy S2 M250K with Official ICS 4.0.3 Firmware

ICS Logo for KOREA S2
For all those Samsung Korean users of Galaxy S2 smartphone who were not able to apply the official update via KIES can now apply the update manually too. In the due course of this article, we will be talking about on how you can update your device with the latest Android’s ICS 4.0.3 Firmware. Please note that irrespective of your current firmware in your Galaxy S2 M250K, you can follow this procedure to update your phone.
Over a period of this article, we will also check out on what are the list of pre requisites you need to follow along with the detailed tutorial.
Rooting Information:
  • Just in case if your device is rooted, after applying this firmware the rooting access will be revoked.
  • Applying this firmware doesn’t require your Galaxy S2 to be pre rooted, even the non-rooted phones can be applied with this firmware.
  • Very soon, immediately after this article we will be coming up with an article which will help you to root your Galaxy S2 M250K on ICS Android 4.0.3 firmware.
Disclaimer: Neither we, nor developer should be held responsible for any damage happened to your device in the process of following the instructions mentioned in this article. It’s very unlikely that there will be any issues but just in case if at all there are any issues then we are committed to help you in solving the same.
Pre Requisites:
  • Data like SMS, Contacts, APN Settings and Call Log is very important and in the process of firmware update, the data may get corrupted or may even et erased. So it’s highly important that you backup all the data using the below mentioned data
SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names
  • Minimum battery left in the device should be 60% so as to avoid device from getting turned Off in the middle of firmware update. Also, you need to ensure that all the antivirus suites in your phone and PC are completely disabled.
  • Enable the USB debugging in your Samsung Galaxy S2 GT I9100 phone from the path “Settings > Applications > Development > USB debugging”. The USB Debugging option should be ticked as shown in the below screen capture. (Phone should be disconnected from computer while enabling the USB Debugging Mode).  Procedure to Update Galaxy S2 M250K with ICS Android 4.0.3 Firmware:
    Odin for S2
    • Now, turn Off your device so that you can then turn ON the device in the Download mode. Download mode can be entered by pressing Volume down Key, Center button, and holding both simultaneously press the Power Button after which a green robot will be shown indicating the Download Mode has been entered.
    • Once the device gets into the download mode, connect the same to your computer with the original USB Cable while keeping the Odin opened in your computer after which you will see that the ID : COM section will turn Yellow.
    S2 Connected
    Note: if the ID : COM section doesn’t turn Yellow, you need to check with two things which are mentioned below,
    • Install the USB Drivers in your computer &
    • Go to the Path “Settings > Wireless & Network > USB Settings” and ensure that “Samsung KIES” option is ticked before connecting the phone to the computer.
    • Click on “PDA” tab and select the file named as “”M250K_HOME_M250K.UC08.2152_CL226872_REV02_user_low_ship_source.jkh.tar.md5. All the files can be found in the extracted file. Once the above mentioned files are selected, you now need to click on “Start” to start the process of firmware update.
    Files Selected
    PDA  – M250K_HOME_M250K.UC08.2152_CL226872_REV02_user_low_ship_source.jkh.tar.md5
    • Now, re insert the battery and enter the device in the recovery mode. To enter into the recovery mode, press Volume Up Key + OK button, and holding both simultaneously press the Power Button.
    • In recovery mode, select Wipe data/factory reset and also you need to select Wipe Cache partition and then reboot your device by selecting reboot system now with the help of Volume rocker keys.
    Note: At any point of time just in case if the process of firmware update gets stopped due to any reason, all you need to do is restart the process from the start by re inserting the battery.
    That’s it congratulations, you have now successfully applied the firmware in your SAMSUNG Galaxy S2 M250K. Do let us know in the comments section just in case if you face any issues as we will try our level best to sort out the same.
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