Galaxy S II

How to Update Galaxy S2 GT I9100 with Kitkat 4.4.2 Android Firmware – Guide

Samsung Galaxy S2 Android smartphone can now be updated with the latest version of Kitkat 4.4.2 and all thanks to the custom ROM firmware which is dubbed as AOSB project. While it had been very unfortunate that Samsung won’t be pushing the updates of Kitkat 4.4.2 due to unknown reasons, we will help you update the firmware which will bring in the experience of 4.4.2. While normal 4.4.2 Android OS doesn’t come with many features, this new firmware comes with a huge laundry list of things which your phone deserves.

KitKat 4.4.2

After checking out the list of features which are mentioned below, we will be checking on the pre requisites and the procedure which will help you update the device.


OTA Support
HALO: make windows move able and scale able
Custom Navigation Ring
Custom Navigation Bar
Custom CRT Animation
Mobile Network Battery Saver Mode
Configurable up to user (LTE or 4G)
Advanced Battery Bar
Support Facebook Sync
App sidebar
Navigation bar with custom dimensions
Screen video recording
Configurable init.d
Build PropModder
Incoming calls dialog
RAM bar with custom colors

Quick Pre Requisites:

  • Create the manual backup of all the data present in your Galaxy S2 as automated tools like KIES may not help you restore the data.

SMS – Use “SMS Backup & Restore app”,
Contacts – 
Sync with the Gmail application,
Call Log – 
Call Log and Restore
Images, 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

  • Head over to the path “Settings > Applications > Development > USB debugging” in your Galaxy S2 so as to enable the USB Debugging Mode. Battery charge left in your device needs to be a minimum of 80% or else device might get turn off in the middle of firmware update.
  • This firmware should only be applied to the devices which are factory unlocked. Also, make sure that you are applying this firmware in the laptops/ computers which have full USB read/ write access.
  • Since this is the custom ROM firmware, you need to make sure that you have rooted your Galaxy S2 Android smartphone. You can check on whether your phone is rooted or not with the help of Root Checker app. Just in case if the device is not rooted, you can root the same with the help of below 2 links;

How to Update Samsung Galaxy S2 GT I9100 with Official ICS 4.0.4 XWLPO Firmware

How to Root Galaxy S2 GT I9100 on ICS XWLPO 4.0.4 Firmware

Disclaimer: We should not be held responsible in any manner for any damage happened to your Galaxy S2.

So let’s head over to the next step where we have summed up the detailed guide which will help you update the device on the latest firmware of Kitkat 4.4.2 with the help of AOSB.

Procedure to Update Galaxy S2 GT I9100 with Kitkat 4.4.2 Android OS:

  • Once downloaded, connect your phone to the computer. Place the 2 downloaded zip files in your device and disconnect the device from computer.
  • Turn off your device so that it can be entered in the Recovery Mode. Galaxy S2 can be entered into the recovery mode by holding the Volume Up button + the Home key button (the middle button). While holding these both buttons, you need to switch ON your device.
  • Alternatively, you can also enter the recovery mode with the help of “ROM Manager” app. In recovery mode, select corresponding options to clear and wipe the data present in your phone.
  • In recovery mode, select “install zip from sd card” and then choose the zip file of Firmware Zip Package which you have placed in your phone. Now, once the firmware is updated, select “Go Back” and select “reboot system now”.
  • Please note that it might take 3 -4 minutes for applying the update. Once the update is applied and once you see the home screen in your device, you can disconnect the device from computer.
  • To check on whether the firmware is applied successfully or not, head over to the path “Settings > About Phone” where the firmware version will be mentioned as KitKat 4.4.2 firmware.

Note: If at all your Galaxy S2 smartphone gets in the boot loop mode, then you need to turn off the device and then reapply the update from the start. To turn off you can reinsert the battery or say you can long press the power button.

Do let us know in the comments section just in case if you face any issues in the process of firmware update. You have now successfully updated the latest version of KitKat 4.4.2 Android firmware in your Samsung Galaxy S2 Android smartphone.

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