I can't log out of my Imessage
Hi there, there's a few parts to this question
A few years back, I permanently connected my iphone 5 to my apple acct. I recently got a new Iphone 6s and transferred everything, even settings, from my old iphone 5. Because of the new phone and previous settings, I can no longer click on icloud, imessage, facetime etc. because they are "greyed out" and therefore cannot connect my phone number to my mac imessage account.
I hope that makes sense so far.
So what I'm trying to figure out here is either:
-how do I "un-grey" those settings (how can i toggle imessage on and off again since its "locked")
-how do I connect my phone number to my mac if I am unable to log off of my imessage account on my iphone 6s
iPhone 6s, iOS 9.3.3, null