The logic board was replaced by a third party who did not have the tools to serialize it. The firmware has been corrupted.
Prevents thieves from "cleaning" a stolen Mac by changing its identity. Activation Lock: Ties the hardware to an Apple ID. macbook m1 change serial number
Check the of your device using your existing serial. Explain how to properly reset an M1 Mac for resale. How to change MacBook M1 Mode serial number The logic board was replaced by a third