I got my Galaxy S4 i337 AT&T version and was unable to move any of my apps to SD card. My SD card is currently working fine, I could take pictures and it can automatically help me transfer the files to the SD card. I tried adding music to my SD card and it works perfectly fine. THE only problem I am getting is that I the "move to sd card" button is not there. My S4 is rooted already. please help if anyone knows how to fix it. thanks