Hi, I rooted by Galaxy S2 (GT-I9100T) which is in Australia on Vodafone. I understand this is different from the GT-I9100 so I followed this guide which is for the international models. I have made clockworkmod backups as well as backed up my efs folder and most of my stuff through Samsung Kies. I used the Siyah Kernel from here too root my phone (this was the link fromt he guide. The main reason I rooted was to be able to update to KitKat. I am unsure of how to do this though because there seems to be no comprehensive tutorial for the T model and Cyanogenmod installer I downloaded said that my device was not supported. Here is a screenshot of the device info if it is helpful. Thanks in advance!