Here is an easy guide to update your S3 GT-I9300 with the 4.4 KitKat: Begin with installing ClockworkMod Touch 6.0.32 post-rooting the device. Ensure to back up all data, information and settings. This will aid you avoid issues later. We suggest you be patient with a manual back up instead of opting for Kies PC Suite. We believe that there is no need to remind that during this operation, the device must be on 50 per cent charge atleast. If you did not remember this, make sure you do. The device will need more power during the entire procedure- especially during Flash. Next comes the debugging stage via USB. Scroll to settings and choose the Application option. Next click Development and then Settings followed by Developer Options and click on USB Debugging. The USB drivers for Samsung Galaxy S3 must be installed on your PC. Follow this up with downloading OmniROM 4.4 along with PA Gapps to the PC. Wrap up with flashing. In case, you need help here, read on: Connect your S3 via USB to the PC. Copy the downloaded OmniRom and Gapps on the memory card without extracting any zipped files. Once done, remove the USB connection and switch the device off. Reboot your phone to the recovery mode and follow it up with a backup for Android of the current ROM. (It is accessible from Backup and Restore Menu> Backup) Wind up with installing firmware via ‘install zip to Choose zip followed by look for the OmniROM 4.4. Install the PA Gapps in the same manner. Wrap up by selecting factory reset. Reboot the handset and you are done.
