@K-alz,
not greyed out on my phone. So I am going to guess, all the issues you are having must be coming from either a bad download, bad flash or xposed. Give it a shot completely clean, then check all those issues before you install xposed and see if they are cleared up.
so far, I only have 2 issues
1. video recording (fixable with other cameras beside stock)
2. receiving MMS messages from iPhones (they usually come in blank). I have to use a 3rd party texting app to see what they say (but then I lose the floating messages) Really stinks because half of the girls on the team I coach have iPhones so I am using it a lot during volleyball season.
Other than that, the phone is running great. Battery life is more than adequate.
I hope you get this straightened out.
ps. the only other issue I can think of is spen not working on the hardware buttons (back and menu). Not that big an issue since I barely use the spen but sometimes I do.