I'd love to see the S2 get the update.but I doubt it will happen. As another poster said.the model is nearly 3 years old now.it's also 2 generations out of date (S3 &S4).I'm sure the phone is capable of running the update, but I'm also sure that Samsung isn't going to continually update an older phone and deprive themselves of income generated by purchases of newer phones. Jul 10, 2014 I did this three days ago using this guide to upgrade my at&t i-727 skyrocket from JB 4.2.1 to Kitkat 4.4.4 Update AT&T Galaxy S2 Skyrocket SGH-I727 To Android 4.4.2 KitKat via CM11 Nightly–How To True Android #1 Custom Android Resource All went perfect and the kitkat rom used here seems stable, but it is stripped down to the bare bones. You can update your Samsung Galaxy S2 GT-I9100 without a computer by going to Settings About Device Software Update. Also, You can update this Samsung device manually, But you need to use a computer. In this Guide, You will learn how to update Samsung Galaxy S2 GT-I9100 manually by using the Odin3 flasher and Samsung Stock Firmware files.

• Samsung Phones Galaxy S2
• Samsung Galaxy Phone Upgrade
• Samsung S2 Upgrade To Kitkat Iphone
• Samsung S2 Upgrade To Kitkat Pc

If you are still paranoid about installing the latest version of KitKat in your Galaxy S II GT I9100 Android smartphone then you no longer have to. In the due course of this article we will be guiding you on how you can install the latest version of KitKat 4.4.2 firmware. While there is hardly any scope of official KitKat 4.4.2 android OS from Samsung citing hardware limitations and limited support. So let’s quickly go through the list of quick pre requisites mentioned below and then we will check out on what is the procedure with which you can apply this firmware update.

Quick Pre Requisites:

Samsung Phones Galaxy S2

• It’s highly recommended that you should backup all the data in your Galaxy S2 with the help of below mentioned steps so as to make sure that just in case if the data gets lost or corrupted, the same can be restored easily.

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”

• From the path “Settings > Applications > Development > USB debugging”, enable the USB Debugging in your device. Minimum battery life should be a minimum of 40% or else there is a risk of device getting turned Off in the middle of firmware update.

• Since this firmware is the custom ROM firmware, make sure that your device is rooted. You can check on whether the device is rooted or not with the help of “Root Checker” app. Just in case if the device is not rooted, you can root your Galaxy S2 with the help of below mentioned steps.

• After rooting, download the “ROM Manager” app from Google PLAY Store and install the custom recovery image in your device.

Disclaimer: We should not be held responsible / liable in any manner for the damage happened to your Galaxy S2 due to not following instructions.

Lets head over to the next step where we have mentioned the detailed guide which will help you update the device with the latest firmware of Kitkat 4.4.2.

Procedure to Manual Update Galaxy S2 I9100 Android Phone with Jellybean 4.4.2 Firmware:

• Download Jellybean 4.4.2 Android Firmware Package and Google Apps Package from here to your computer. Once downloaded, connect your phone to computer with the help of original USB cable and place these two zip files in your device.

• Press and hold Home + Power + Volume Up buttons to enter the device in the Download Mode. If your Galaxy S2 i9100 enters in the Normal mode, then you need to re try the process of entering the device in the Recovery Mode. You can also enter the device in the recovery mode with the help of ROM Manager app.

• In recovery mode, select options to clear and wipe the data present in your phone by selecting the options like “Clear Data” and “Wipe Cache”.

• Once done, you now need to select the option of “install zip from sd card” and then select the firmware zip file which you have placed in the device. It will take around 4 -5 minutes to apply both the zip files in your device.

• Once done, select “go back” and choose the option of “reboot in normal mode” for rebooting the device normally. Please note that it may sometime take more than 4 -5 minutes for rebooting the device in the normal mode.

• To check on whether the firmware is update or not, you need to head over to the path “Settings > About Phone” where the current firmware will be mentioned as Kitkat 4.4.2 firmware.

Note: If at all your Galaxy S2 I9100 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 Jellybean 4.3 Android firmware in your Samsung Galaxy S2 I9100 Android smartphone.

Samsung Galaxy Phone Upgrade

We will very soon be coming up with custom ROM firmwares which are based on the KitKat 4.4.2 Android firmware.

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.

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.

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

Samsung S2 Upgrade To Kitkat Iphone

→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

1. 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.
2. Turn off the device, and wait at least 5 seconds.
3. 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.
4. Under recovery mode, select “wipe data/factory reset”, then select “yes” on next screen to confirm your selection.
5. Now go to “mount and storage”, under it select “Format System”, followed by “yes” on next screen to let it perform.
6. 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.
7. Similarly, install the Gapps zip package.
8. Once you done with both the files, go back to main menu then select “reboot system now”.

Samsung S2 Upgrade To Kitkat Pc

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.

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