Sometimes the update doesn't copy everything right, first, try to odin just the modem software for your version that you can find here in unknownforces thread: http://forum.xda-developers.com/show....php?t=2338919
If that doesn't work, I would download the full mk2 tar file from sammobile.com and odin that to the phone. If you are still having problems after that you can try odining the MJA modem from unknownforces thread above.
Phones & Tablets: Galaxy S4, Galaxy Note 8", Evo 4g LTE, Evo 3D, Acer Iconia A500, Samsung Galaxy Tab 2 10.1, Ipad 2, Nabi 2,
Rom: Rooted Stock Odexed, Hotspot Mod, Xposed, Wanum, several other xposed tweaks