Instruction:
1. Place order Serial Number
2. Put in DFU mode and jailbreak with
checkra1n2. Press Backup in the App
4. Put in DFU mode and restore with Apple Configurator 2 (if it fails use Advanced\Revive) and wait for it to ask for Wi-Fi connection, it is not necessary to connect
5. Put in DFU and re-Jailbreak with
checkra1n6. Press ByPass on the App, press the power button on the Mac and hold Command + R and connect to the internet
7. Open disk utility erase the disk and Install macOS this will leave the work incomplete
8. Put in DFU and re-Jailbreak with
checkra1n9. Press Finish in the App
10. After this happens, your Mac will be finished with the work
11. Always activate your Mac without internet.