Hi, I downgraded my S4 from NA4 to MK8, and I rooted it. After that, I installed KNOX, and now I can't use it because it simply doesn't run... I'm able to type password, but then "KNOX stopped working"... How can I run this, or how can I uninstall KNOX? Maybe I should first install KNOX and then root phone? Or don't accept KNOX blocking while rooting?
E: Also, I have installed floating window mod, so I modified some system files, maybe this is why KNOX don't work?