- Dec 15, 2018
- HP Compaq Pro 6300 SFF
- HD 2500 /GT 710
That is the correct message it means the S/N is not already registered by Apple as one of their's. Try reading the 'Idiots Guide' for clarity.
Yes, I read the "idiot guide", and correct it does say that, which the "long guide" here does not. So, when I tried to get support (to resolve iMessage issue), the first thing is they ask is for the serial number, and it does not pass that check, so I cannot even get a callback for support.