I have an S4 Verizon on 4.3. (BN: I45VRUEMK2) I’ve downloaded an device diagnostics app and it says : ‘Please use the Samsung official version. Your device has been rooted.’ But it is incomprehensible because I didn’t do anything with that. Ohhh and few functions are not able to use :S Maybe it’s because of the rooting. Please!!! What should I do with that? Should I unroot it to make it work well?? I don’t really want to harm my device or open the android system if it is not nessesary. I want to make the best from my phone, but friom this case I cannot. Could You give me some advice? :/ Please!!