Logic Board Replaced Now Messages/Facetime Not Logging In

[deeve]

Hello, I just got my logic board replaced on my late 2013 MBP 13" and after getting it back I found Messages and Facetime no longer work. I get the Cannot Sign In Check Your Network Connections message. Everything else works fine. Any idea?

Thanks!
DAVE

 

[Bruno09]

Hello,

it is likely because you no longer have a serial number.

Do : /about this Mac/more infos

What reads the serial number ?

If it says : "serial #", you no longer have a serial number and will need to bring the Mac back to the doctor to have him giving a new serial number to the machine.

 

[deeve]

Well, there you have it...thank you. I will bring it back. I wonder why they did not do that the first time around.
DAVE