I was on 4.3 and using this firmware N900W8VLUBMJ4_N900W8OYABMJ4_N900W8VLUBMJ4_HOME.tar with Bell.
I decided to upgrade to 4.4 (had NO clue at the time that the ability to downgrade was somehow removed by Samsung-- I guess I should have expected some funny business especially after seeing all this Knox crap).
Anyway, I backed up my apps with titanium backup, nandroid image, Kies 3 backup. However, after updating to 4.4, I wiped the data using the stock recovery (was so used to wiping using CWM/TWRP that I figured the stock recovery would only wipe the "data" folder--AS IT SAID SO), but instead it wiped my entire phone clean. Lost all my applications, my titanium backup folder, pictures (tho I guess I have dropbox so not too bad) and music. I figured that it's not so bad, I still have my nandroid backup backed up on dropbox. I could use that to recover all my stuff.
But I don't know how. I mean i can't downgrade to 4.3, and isn't that the only way to restore a nandroid? ie to be at least on the same Version of android.
I could try recovering it as is (currently on 4.4 stock), but I don't want to brick my phone. Could really use some advice on this. Thank you.