Accidently renamed system/xbin to system/xbi So i accidently renamed xbin in /system to xbi. I can't get root anymore because su is stored there and it won't work in xbi. I get a 'Connection to ui timed out' every time i try do './su'. If it helps i'm on a Samsung S4 Mini or a GT-I9195T.
Someone will probably want an answer so here are the steps I performed:

I managed to get twrp running on it with odin. (I got odin from odindownload.com, gone to twrp.me/Devices), found my device, grabbed the .tar and started odin. 

I then clicked the 'AP' button and selected the .tar file. I connected the phone and pressed start. Booted into recovery by holding the 

Vol up + Home +  Power key buttons.

Finally I hopped in a terminal and finally cd system;mv xbi xbin.