August 8th, 2014, 05:33 PM
Join Date: Nov 2012
Location: Warwick UK
Device(s): Galaxy S3 gtI9300, rooted,
Validus 5.2 rom
Galaxy S2 gtI9100(retired)
Thanked 25 Times in 18 Posts
Ok, if you have superuser,you're rooted, which is no big deal. In fact, it's a must if you want to flash a different rom, which sounds as if you do.So, the hard bit is already done for you!
If you perform a factory reset, you end up with the same operating system (os) or rom as you started with, only it will have any apps, data, contacts etc, wiped off it. If you have a google account, then you will be able to restore all your contacts and photos quite easily.
It sounds as if you need to download and install a different rom. Neatrom v7.7 is the latest non kitkat, it's android v4.3, which is still Jellybean.
There is a host of info on this forum that will help you do that. Read them, and read them again, then again before you try. It isn't difficult. If I can do it, anyone can believe me!