Of course, none of this is possible without rooting your S4 and installing a custom recovery on it – these will the first two steps to install KitKat 4.4.2 on your Galaxy S4. All you’ll need is to move the CM11 ROM and Gapps zip file into your device’s root storage and then flash them via the custom recovery mode (TWRP or CWM). However, this isn’t a very daunting task for newbies either. If you’ve already tried this on your phone (or any other Samsung device) then this is a piece of cake. Assuming that you’re doing this for the first time, you might require a briefing before you set on to install KitKat 4.4.2 on your S4.