Probably you've tried recently some app which had Access to System, this will trigger Status Change but it's soft and many times goes back to Official after you restart your phone.
-----------------------------------------------
Final conclusion:
From now on, I can recommend to use my ROM's ONLY for HD Voice as I've found easy solution to make phone OFFICIAL and be FULLY Rooted at the same time. What I mean by this, is flash STOCK ROM (latest working build is MDF) with odin, Root it with CF-AutoRoot, use RECOVERY from post #1 and flash it as last thing. You'll have FULL Root Permissions, OFFICIAL Status, NO annoying messages (as in MDM), working OTA & KIES...
-------------------------------------------------------------------------------------
It's IMPOSSIBLE to create a Fully Pre-Rooted Stock ROM for I9505 using the "old-school" method... DOESN'T work anymore, maybe one day it will....
Well, I use your mdm rom and changed the three names you've listed before and it works like charm, stable and since I changed the names no more warnings (btw i don't think they are sooo annoying)
So you did fantastic work and I am sure you'll keep working on this
Sent from my GT-I9505 using xda app-developers app