Hello and welcome to Android Forums Bruhhhh!

I am afraid it is not possible to revert to Android 4.2.2 once 4.3, with locked bootloader and Knox security prerequisites is installed. See post #1, Knox Security & locked bootloader on new firmwares.

The recent Android 4.3 releases are fine and it is most likely the update process of your apps and settings that are causing the issue or the actual firmware download was corrupted, particularly applicable to OTA, (Over The Air), updates. I would suggest a Factory Data Reset and check that the firmware update is not corrupt before reloading your apps, etc; that you should have backed up prior to carrying out an FDR.

For more information on firmware update problems and Factory Data Reset, see, here.

 

The problem is that the factory data reset is a big deal, at least to me. It involves bringing the phone back to factory default settings. The last time I did this it took me hours to just get it back to how I had it personalized. I used Kies with the saved data to do this, not a small task for a non-techie data "dummy" like me. My point is, we shouldn't have to do this in the first place.

 

Shame on Samsung and the carrierS (pleural) for releasing the 4.3 update prior to its being ready - "debugged". Agree should not have to do a factory reset!

 

Your correct. (In a perfect world). Unfortunately, if you are running all kids of 3rd party apps at the time of the update, the issues the OP is having, can happen. Look at it this way: If you decide to get ride of your S4, you will have to reset up the new device as well. So in the long run, your better off just doing a factory reset and starting over from scratch. I don't like doing factory resets either, but when I have performed them, they did correct all the new problems that cam after an OS update. (the S4 will be receiving KK 4.4 early next year.)

 

I wonder if Samsung monitors message boards like this one so they can get user's feedback.