iMessage and FaceTime

[DerDings]

Hey,
I got my Sierra Build running but I can't use iMessage and FaceTime.
In iMessage it says that my contact is not registred
and in FaceTime I just can't klick the camera or phone button.

Is this a known problem or is my system corrupted?

Thank you.

 

[svencux]

I do have the same problem and same error message.
Except USB 3 (not working) the rest seems fine and all working.

Went through the iMessage suggestions already but so far no luck.

 

[DerDings]

Just to get it clear:
I generated the serial number etc. and I checked it at https://checkcoverage.apple.com/
I always get invalid serial number. Is it correct or is it something like "serial number not found"?

I tried about 10 different serial number but never got any other message... Now I'm blocked and have to wait to check more.

 

[svencux]

Well me too.
Just followed these steps. ( http://www.tonymacx86.com/threads/simple-imessage-guide-for-yosemite-and-el-capitan.186276/)

And now it's working

 

[DerDings]

No way, it won't work...
Edit:
Now iMessage works. It seems that my nvram is not emulated correct and this gives me a wrong MLB...
I dont know how to fix this, but set it manually to the nvram stored at disk solved my iMessage problem.

 

[DerDings]

I set my MLB (System ID) to nvram. It wasn't written correct by clover.

 

[dss862]

how do u make facetime work on sierra 10.12.6?

 

[DerDings]

https://www.tonymacx86.com/threads/an-idiots-guide-to-imessage.196827/

 

[VioletDragon]

how do u make facetime work on sierra 10.12.6?

FaceTime works without having Values Setup. But better to have Genuine Values & Serial Number. Take a look at Fix iMessage