Originally Posted by Demodave
My phone is working great. A question to all of the XDA experts.... would you recommend that I do a factory reset after installing the update to KK?
If you are already on stock MK2 and are upgrading to NB1 without any sort of root, custom recovery, etc. doing a factory reset after installation is a personal choice. It varies between person to person depending on what apps you use and the like.
If you fit into one of the categories, your want to follow the "guide" below.
1. Are you rooted?
2. Custom Recovery? Safestrap?
3. Custom ROM?
In these cases your need to use Odin to reflash the stock MK2 files
which will of course put your phone back to stock TW 4.3 along with erasing your data. So if your planning to take the plunge into KitKat be sure to backup your data, including your SD card (or remove it). After returning to MK2 head to the Software Update section of the phone and have it search for it and you ought to be good to go.