How to Upgrade Your Samsung Galaxy S2 GT-I9100 to Android 4.4.2 KitKat OS

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Samsung Galaxy S2 GT-I9100 is still upgradable to Android 4.4.2 KitKat using CyanogenMod 11 custom ROM. It allows the user to obtain the latest features, customise the interface and tweak performance unlike before.

CyanogenMod 11 for Galaxy S2

CyanogenMod 11 delivers great benefits to the Galaxy S2 such as improved memory management, better battery life and optimised system performance. CM 11 removes the bloatware added by Samsung and only retains the vanilla UI of Android OS.


  1. Flash this firmware to the Samsung Galaxy S2 GT-I9100 International variant only.
  2. Manually backup all personal files and system settings stored on the smartphone.
  3. Battery level must be at least 50 per cent to prevent any power interruption during the flash.
  4. Enable USB debugging mode on the smartphone. Go to Settings > Applications > Development > USB debugging.
  5. You need to root your Galaxy S2 and install a custom recovery such as ClockworkMod recovery.
  6. Download the required USB drivers for Galaxy S2 on your computer. You can use the Samsung Kies PC Suite to install the drivers by plugging the device when the program is active.
  7. Download the CyanogenMod 11 Android 4.4 KitKat firmware and the Google Apps package to your computer.

Warning: The BitBag is not responsible for any errors which may occur on your Galaxy S2 GT-I9100 smartphone. CyanogenMod requires manual installation that may cause issues if done improperly. Read and follow the instructions carefully to avoid damaging the device. Do this at your own risk.

Flashing Instructions

  1. Connect your Samsung Galaxy S2 GT-I9100 to the computer using a USB cable.
  2. Copy and paste the CyanogenMod Android 4.4 KitKat firmware and the Google Apps package to the microSD card of the smartphone. No need to extract any of the zip files.
  3. Disconnect the smartphone from your computer then switch it off.
  4. Reboot the device into Recovery Mode by pressing and holding the Volume Up, Home and Power keys at the same time. Navigate using the volume keys and select options using the power key.
  5. Inside the Recovery Mode, create a nAndroid backup of the current ROM. Select ?backup and restore > backup? to make a copy of the ROM which you can restore anytime.
  6. Perform a full wipe on the device by selecting ?wipe data/factory reset? and ?wipe cache partition? then select ?advanced > wipe Dalvik cache.?
  7. Install the CyanogenMod 11 by selecting ?install zip from SD card > choose zip from SD card > select the CyanongenMod 11 firmware > confirm installation.? Apply the same with the Google Apps package.
  8. Once the installation has been completed, go back to the main menu and select ?reboot system now.? It may take at least five minutes before the device reaches the home screen.

In case your device goes into a boot loop, remove the battery then reinsert and re-apply the update. Do not forget to perform a full wipe to avoid boot loops.

Photo Source: Samsung


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