Failed To Create Activation Request __full__ — Activate Mac
If you have tried all of these steps and the Mac still fails to create an activation request, it is highly likely that there is an underlying hardware issue with the logic board, or the device is still managed by an enterprise organization's MDM (Mobile Device Management) system that has locked the serial number. In this scenario, reaching out to Apple Support or visiting an Authorized Service Provider is the best next step. To help narrow down the cause, tell me:
Look at the output in the Terminal window. If it successfully contacts the server, it will prompt you to restart. activate mac failed to create activation request