Hi a while back i rooted my S3 Neo I9301I and installed a couple of ROMS based on android 4.4.2/4.4.4 and then i would restore the Nandroid backup i had made of the samsung's touchwiz ROM (The one which came with the phone when i bought it TouchWiz 4.4.2 Kitkat)
Then i thought i'd go ahead and try the unofficial Cyanogenmod 12 by Rox with 5.0 GAPPS, didnt like the performance, but this time when i restored my nandroid, after booting up the phone there's a black screen and all apps crash with the usual error message e.g. "Unfortunately settings has stopped". I've now lost the touchWiz Backup. Same situation even after i flashed GAPPS 4.4.x, so i reinstalled CM12 and GAPPS 5.0 and now im stuck with it.
TLDR:
I've lost the touchWiz nandroid backup.
A) Anyway i can get back the orignal Samsung TouchWiz 4.4.2 ROM?
B) Im looking into upgrading the firmware. Will the latest firmware include Samsung's TouchWiz?
If i've said anything technically incorrect, bare with me please im not THAT big of a tech wiz :D
Phone Specs: Samsung Galaxy S3 Neo I9301I, 16GB, I9301IXXUANH1 (Single Sim Variant)