iMessage and FaceTime won’t work on MacBook

Have someone else attempt to sign in using their Apple ID. If they can successfully sign in and use Messages/FaceTime, it may be your Apple ID.Someone I know had this happen and I was able to sign in usingmy Apple ID. After a call to Apple Support and then being elevated to a tier 2 support person, it turned out it was a problem with their Apple ID. It took the software engineers 3-4 days to fix the problem. When calling Apple, make sure you tell them it is an Apple ID problem so you don't get charged.

There is a contact link.

Apple ID Support

Apple ID Support (2)

Apple Support by e-mail or chat Select your device, Battery, Power and Charging, then Power adapter not working to get a chat option.

Apple Support using Twitter

Or fill out and submit this form.

Check to be sure your serial rumble is visible in Apple menu > About this Mac. Sometimes when a machine has had a CPU replaced the tech forgets to use the re-serialization tool. Both Messages and FaceTime need to see the serial number to work.

That's a good thing! But then, I'm not sure why you're getting that message.

Same issue here! Have done hours and hours of googling and none of the solutions work! not happy at all!

How can you check the serial number?