[AC Question]

Basically I tried to root my Galaxy S5 and then when I was on the app manager I was deleting things like flipboard and all that useless stuff and I think I accidentally deleted the app for my status and notifications bar, my app try, wallpaper and lock screen.
So right now my wallpaper is black
I have no lock screen
I cant see the wifi status, reception status, time, battery percentage or notifications
I cannot go back to an app I opened and then closed earlier
My phone is nearly useless right now. I have tried factory reset, deleted everything on my phone, rebooted it, unrooted it, but nothing seems to have worked.
I would of thought that it would be possible to just download the code for all the things i deleted but i cant find it anywhere
Someone please help