Please I need your help guys! I have S4 I9515 ,can i use rom or root S4 I9505 to my phone or not ?? because I don't find any root for my phone I even tried to root my phone with root S4 I9505 but when i try to give super user access to my "root checker application" it give me "this device does not have proper root access" but if i delete "super user application" then i run "root checker" it show me that i got good root also i use another su app but it is not working with me so what to do ?? thx in advance ..