You can now Flash 4.4.4 KitKat ROM on Galaxy S2 I9100. You want to learn about install new ROM on your smartphone without bricking its core firmware? Are you trying to flash SlimKat 4.4.4 weekly ROM on Samsung Galaxy S2 model? If yes, then this tutorial is the solution of all your concerns. In this tutorial a simple and step by step guide is given to flash slimKat 4.4.4 weekly ROM on Galaxy S2 without disturbing its firmware.

SlimKat is set to offer a far more improved KitKat user experience. These custom ROMs offer way more than just a little update on interface. here are the guidelines that will make you an active and smart user of Samsung galaxy S2. This tutorial will guide you on How to Flash SlimKAT 4.4.4 KitKat ROM on Galaxy S2 I9100.


Galaxy S2 I9100 Drivers:

You’ll be connecting your device to the Computer, so it is recommended that you have installed the latest USB drivers for Galaxy S2 I9100 properly. For those who do not have done it already, download the USB Drivers from the link below and then proceed with the tutorial.

Make a Backup of Galaxy S2 I9100:

It is recommended that you make a full of your device before proceeding with this guide on How to Flash SlimKAT 4.4.4 KitKat ROM on Galaxy S2 I9100. Anything can go wrong during the process, so you can later on restore your device to current state. Just follow the tutorials listed below in order to fully backup your device:

Pre-Tutorial Stuff:

  • This guide is only for Galaxy S2 I9100, DO NOT try this on any other device or else you’ll end up bricking it!
  • Make sure your Galaxy S2 I9100 is Rooted and has ClockworkMod or TWRP Custom recovery installed. We’ll go with the ClockworkMod in this tutorial.
  • Your device must be at least 70% charge to prevent turning off in the middle and increasing the chances of bricking it.
  • Make sure USB Debugging is enabled. -> Go to Settings > Developer Options > Turn On USB Debugging. If the Developer Options do not show up in your settings, go to About, scroll down and tap on Build Number seven times and a Message will pop up saying that You are a Developer now! Go back to Settings and you’ll have the Developer Options now.

How to Flash SlimKAT 4.4.4 KitKat ROM on Galaxy S2 I9100

Step 1: Download the following files:

  1. SlimKat 4.4.4 Custom ROM
  2. Download GApps

Step 2: After that, connect your device with your computer with the help of the USB cable and move the downloaded files to your device.

Step 3: Unplug your device and then turn it off.

Step 4: When it is turned off, boot it in to Recovery Mode by pressing and holding Volume Up + Home + Power Button simultaneously.


Step 5: When your device successfully boots into recovery mode, create a Nandroid backup by going to Advanced > Backup and Restore > Backup to /sdcard.


Step 6: Now clean up the storage system of your device; so, just select wipe data/factory reset as show in the image below.


Note: The CWM Recovery in your device may not be as same as shown in the images here. However, functions are almost the same in every version of CWM Recovery.

Step 7: After that, select install zip from the recovery menu.


Step 8: Followed by choose zip from sd card and select the zip file that you downloaded in Step 1. Installation will start.


Step 9: Wait for the installation to complete. Once it is complete, repeat the last 2 steps to flash GApps or Google Apps. Or you can follow the tutorial below:

Step 10: After you’re done with everything, go back to the recovery menu and select wipe cache partition followed by wipe dalvik cache.


Step 11: In the end, from main menu of recovery select reboot system now.


Note: First boot will take a bit of time, so just be patient. If your device gets stuck in bootloop, turn it off, boot into recovery mode, perform a factory reset and wipe cache. Then reboot it. Hopefully it will turn on!

You will now have Android 4.4 KitKat based SlimKat 4.4.4 on your Galaxy S2 I9100!

Tags : Android 4.4android how toCustom ROMGalaxy S2 I9100SamsungSlimKat
Hassan Imtiaz

The author Hassan Imtiaz

Professional Blogger, Web Developer and a Tech Geek! Loves to write about Tech Stuff especially Android! Co-Founder and Author at

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