There is no problem going back to NC5 4.4.2 from NH7 4.4.4. Just remember there is a chance you can end up in a bootloop . I have gone back and forth from NC5 to NH7 and from NC5 to NK4 . I have bootlooped my device a dozen plus times. ( What that means is the devices stalls at boot it just sits there for more than 6 minutes, remember it takes 3-4 minutes to boot up a new rom on first boot up )
Here is a copy of post # 14 First, if your device came with 4.4.4 NH7 it should be possible to down grade to 4.4.2 NC5. However, is the phone new and under warranty ? If so odin flashing back to NC5 won't trip the knox e-fuse, that happens when you install a custom recovery. Here we go, first BACK UP ALL YOUR DATA TO AN EXT SD CARD OR PC !!! ( i.e. pics, music, videos etc.) From my post here is the link for odin
https://mega.co.nz/#!oA5xzTAL!LXoVWB...ZlOMSWdRGVX6Uo download to PC desktop. Then go to micmars and download a copy of NC5 here is the link
http://forum.xda-developers.com/show....php?t=2712205. It is a zip file so just right click and extract it to your desktop, that will change to a .tar file in a folder. Next extract the odin zip to your PC desktop, and open the odin file as administrator. Now connect your device to your PC via a USB cable. A box will light up in the upper left hand corner COM: doesn't matter what color it is just shows a connection. Now click on the PDA box a new window will open up click on desktop then click on the NC5.tar file to open. Then the file show up next to the PDA box don't touch anything else just click start. Sit back go get a coffee it is going to take few minutes.
Now here is the fun part, if your phone boots up GREAT !!! If it doesn't, and bootloops no problem this common when going back to NC5 it happened to me. Just pull the battery, then reinsert battery, and boot into your stock recovery ( hold the power button, volume up button, and menu button at he same time) once there navigate to factory reset with the volume button and click on factory reset with power button. Finally the phone should boot into NC5, now go to settings/general/about phone and see what version you have.
If you are still on NH7 no problem, it didn't stick go through the process again. Others have had the same thing happen to them, and it took the second time, in the end it's worth it. I WOULD ODIN FLASH NC5 ROM AT LEAST TWICE !!! That way nothing gets missed, then boot into download mode one more time. Make sure your reading Samsung Status : Official then you are running bone stock NC5.
I had all kinds of problems on NH7 and so have many others, I went back to NC5 and have had no problems, I'm going to stay here and wait till android 5.0 (lollipop) comes out. Enjoy !!!
Remember you can always go to the first post here for more info !!!!
