This post is to help some of you out! I know that a lot of people complained about the SIM chip issues and so forth with the S4 KitKat OS! I believe that a lot of the issues with them are just due to them not being updated properly! I have repaired TWO of these phones with no issues after reflashing them with ODIN! This post is to assist you all!! I am Providing a link to the files you will need from my files!! ~Please Download the TWO Text Documents below~ ~Please follow the directions located in the Text Documents!~ This should fix all your issues!!