Finally after long waiting, some stable, and high performance Android 4.4.2 KitKat are now being distributed by developers. It always takes some time to bring bug free version of Rom, it needs good efforts also. Just few days back, Samsung had announced KitKat updates for many devices but Galaxy S2 wasn’t present on their list. It is respected that, they will roll update in Q2 for 2014, or may take longer than that.

Don’t need to bother that. We have our own way to get updated to latest Android operating system by mean of custom Rom. To update Samsung Galaxy S2 to Android 4.4.2 KitKat, we would use SlimKat Rom. Based on official AOSP firmware, it has been transformed to slim version, but still it is feature rich, and very beautiful in terms of user interface. It comes with entirely dark user interface, which is very smooth, and looks classy too.

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With high stability, this Rom comes with very high performance with minimal or no bugs inside of it. This feature rich Rom is good choice to update your device, as it has been distributed officially, so there won’t be any problem regarding to it. To install it successfully we recommend you to follow each step very carefully without skipping any of them. If you want to read more about this Rom then you must consider to visit the XDA Thread here.

DOWNLOAD Here is a simple guide to Update Samsung Galaxy S2 I9100 With Android 4. 3 Kitkat to download Samsung custom firmware on Samsung Galaxy S2 Nov 20, 2013 Samsung Galaxy S2 GT-I9100G is upgradable to Android 4. Kat firmware is now available for Download and install. Update your Samsung Galaxy S2 to Android 4.4.2 KitKat with Unofficial Gummy ROM. Click through for downloads and step-by-step guide. I am the owner of samsung galaxy S2 'Skyrokcet' (SGH-i727) and I would like to know whether or not to support this device OS Android 4.4 KitKat? Will at&t create a special firmware on the basis. Samsung Galaxy S2 GT I9100 Android smartphone can now be updated with the latest version of Kitkat 4.4.2. Unfortunately, Samsung won’t be pushing the update officially to Galaxy S2 devices. But all thanks to the custom ROM makers who are working constantly to come out with the most stable firmwares based on the Kitkat 4.4.2 firmware.

Before going any further, read all the pre-requisites listed below, and prepare your device according to them. Read all the prerequisite that we mention below. Try to read them thoroughly.

Pre-requisites

SlimKat Rom, and this guide is especially made only for Samsung Galaxy S2 I9100 handset, and meant nothing for any other device. So before installing it, make sure to check the model number of your device, it should be I9100.
To install this Rom, you must be on custom recovery. Latest TWRP or CWM recovery is necessary to install this Rom, otherwise you will get bugs, and other issues after installing it. To install custom recovery, you can use Rom Manager app, it will easily install CWM recovery on your phone.
Backup all the information stored under the phone, because installation process will go through complete wiping of internal memory. Go through our guide to backup Android phone to make it easy. Also, the guide includes the method to backup the current of the device.
Make sure to enable to USB debugging on phone. To enable it, go to phone’s Settings->Developers Options->check the USB Debugging box.
Charge the device to good extent. We recommend to charge at least 40% level, so it could easily survive during the installation.

Downloads

→Get the latest built of SlimKat Rom from here. (Slim-i9100-4.4.2.build.3-OFFICIAL-3081.zip)

→Get the Gapps for Rom from here. (Slim_AIO_gapps.4.4.2.build.3.zip)

How to install SlimKat Rom on Galaxy S2 I9100

Download both the files listed in download section, then put’em all to phone’s SD card. Remember the name, and location of the files.
Turn off the device, and wait at least 5 seconds.
Turn on the device by pressing, and holding Volume Up + Home + Power buttons together until Samsung’s logo gets appeared on screen. Then release the buttons, and you’ll be at recovery mode very soon.
Under recovery mode, select “wipe data/factory reset”, then select “yes” on next screen to confirm your selection.
Now go to “mount and storage”, under it select “Format System”, followed by “yes” on next screen to let it perform.
Get back to main menu, there select “install zip from sd card”, then “choose zip from sd card”, find and locate the downloaded SlimKat Rom zip file, and select “yes” on next screen to confirm the installation process.
Similarly, install the Gapps zip package.
Once you done with both the files, go back to main menu then select “reboot system now”.

Your phone will restart, and boot up to home screen. For first boot up, it can take some longer time than what it usually takes. So, don’t get panic, it is natural. Fill the Google account settings to get started with your phone.

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Further to improve the device performance, you can visit our post on root apps for high performance and improve usability.

If you are planning to test a Custom ROM on your T-Mobile Samsung Galaxy S II SGH-T989, then Androidbiits.com is here to help you in installing Custom ROM on your T-Mobile Galaxy S2 SGH-T989. Today, I will talk about HellKat Custom ROM that is specially designed for T-Mobile Samsung Galaxy S II SGH-T989. I have recently posted the tutorial for installing Android 4.4.2 VRUBNE1 on Verizon Samsung Galaxy S4 Mini SCH-I435. Now I am going to write the step-by-step instructions using which you can update T-Mobile Samsung Galaxy S II SGH-T989 to Android 4.4.2 KitKat HellKat Custom ROM.

I am hoping that you will be able to update your T-Mobile Samsung Galaxy S2 SGH-T989 to Android 4.4.2 KitKat HellKat without facing any issue after reading the steps posted in Androidbiits.com. HellKat is one of the most popular Custom ROMs available for Galaxy S II SGH-T989. You need to root T-Mobile Samsung Galaxy S2 SGH-T989 in order to install HellKat. CWM recovery is also needed to be installed on T-Mobile Galaxy S II SGH-T989 before updating it to HellKat. You must save your contacts and messages in a safe place before updating Galaxy S II SGH-T989 to HellKat. You must install T-Mobile Samsung Galaxy S2 SGH-T989 USB driver on your PC for successful connection between your S2 SGH-T989 and computer.

You can follow the steps posted below to update T-Mobile Samsung Galaxy S2 SGH-T989 to HellKat. Androidbiits.com will not be responsible if your SGH-T989 got corrupted during the installation process. SGH-T989 battery level must be above 98% before following these steps.

How to Install Android 4.4.2 KitKat HellKat Custom ROM on T-Mobile Samsung Galaxy S2 SGH-T989

1. First, you have to download HellKat Custom ROM.

2. Now you have to download Google Apps package for T-Mobile Samsung Galaxy S2 SGH-T989.

3. Go to the settings of your S2 SGH-T989 and enable USB debugging.

4. Now you have to connect your T-Mobile Samsung Galaxy S2 SGH-T989 with your PC via USB cable.

5. After connecting your S2 SGH-T989, you need to transfer HellKat Custom ROM ZIP file and Google Apps package to the SD card of your T-Mobile Samsung Galaxy S2 SGH-T989. Then, turn it off.

6. Remove the USB cable from your T-Mobile Samsung Galaxy S2 SGH-T989 and then you have to put it into Recovery Mode.

7. Now you have to choose “wipe data/factory reset” option from the main menu.

8. Now you have to choose “wipe cache partition” option.

9. Now you have to choose “install zip from SD card” and then search for HellKat Custom ROM ZIP file and Google Apps package from the SD card of your S2 SGH-T989. Then, install them.

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10. Now you have to return to the main menu of your T-Mobile Samsung Galaxy S2 SGH-T989 and choose “reboot system now” option.

Oh Yes, You have done it. Dear friend now you will have to wait until your SGH-T989 restarts. It may take around 5 minutes to reboot. Once your SGH-T989 is restarted, you can enjoy HellKat. In this way you can install HellKat. If you are facing any difficulty while installing HellKat, then you can share your difficulty with me in the comment section below.