trouble using iMessages on both iPhone and MacBook Pro

khoamahalo wrote:

My partner bequeathed to me a MacBook Pro and I have an iPhone XR

After trying ALL of the various ways to reinstall clean as if on a brand new machine, even using a brand new AppleID that has no no connection to the information stored from past attempts AND clearing NVRAM (it is an Intel-based MacBook) this is what happens:

I start iMessages and log in with the new AppleID. My iPhone is NOT logged in with any AppleID.

iMessages asks me to enter AppleID and password.

It starts, obviously with no knowledge of past us of the iPhone, so with zero messages.

Whether I start to use it or just wait, after a short pause I am kicked out and back to the

"log in with AppleID" page

Please help.

If you can't sign in to your iMessage account or FaceTime on ...