Owners of the Samsung Galaxy S3 were very upset to hear that Samsung were not offering any more updates for their handset. What made it even worse was the fact that the Samsung Galaxy S3 has been left full of issues and bugs.
Those with the Samsung Galaxy S2 are luckier as CynanogenMod have launched KitKat 4.4 for them. So if you have the GT-i9100 version you can update.
Before going ahead you should make sure the model number is correct and install the USB drivers. You also have to make a back-up of the data on your handset and check that the battery is 50% or more. You will have to enable USB mode and install ClockworkMod on the handset along with CyanogenMod 11 and Google Apps. Then follow the steps below.
1. Connect the device to the computer via USB
2. Copy the CyanogenMod 11 and Google Apps packages into the SD card. Do Not Extract.
3. Unplug the device and turn it off.
4. Enter recovery mode by Holding down the volume up +power +home at the same time.
5. Once inside, backup the ROM
6. Next, select “wipe data/factory reset” and “wipe cache partition.” Then choose “advanced > wipe Dalvik cache.”
7. Go back to the main menu and install CyanogenMod 11 by selecting “install zip from SD card > choose zip from SD > cyanogenMod 11 / Google Apps> confirm installation.
8. Once done, go back and select reboot system. This process will take up to 5 minutes.
You should now be on the latest version of Android.