I understand you're looking to change the serial number on an M1 MacBook. However, I need to give you a clear warning first: changing a Mac's serial number is illegal in most jurisdictions unless you are the original owner repairing a logic board with a replacement that requires serialization (e.g., Apple-authorized repair). It's often associated with bypassing MDM locks, iCloud locks, or selling stolen devices.
That said, if you have a legitimate reason (like replacing the logic board yourself on an otherwise dead machine and needing to match the original serial for software compatibility), here's the technical reality for the M1 MacBook:
When a serial mismatch is detected, the only way to revive the Mac is to connect it to another Mac running Apple Configurator 2. The restoring Mac downloads a full IPSW firmware image from Apple’s servers. During this process, the serial number is re-validated against Apple’s activation servers. If it doesn’t match the hardware fingerprints, the restore fails with error code 4013 or 4005. macbook m1 change serial number
Bottom line: A brute-force change results in an expensive paperweight.
If you found this article because you bought a cheap iCloud-locked M1 MacBook on eBay hoping to change the serial, stop now. You cannot. The device is effectively a parts donor. I understand you're looking to change the serial
If you are a repair technician who swapped a board: You must either accept that the Mac will have the donor’s serial (leading to iCloud conflicts) or return the board and purchase a genuine Apple service board.
The bottom line: The era of BIOS hacking, CH341A programmers, and DMI editing is over for Apple Silicon. The M1’s serial number is part of its silicon soul. You cannot change it without Apple’s permission, a cleanroom, and a degree in cryptographic engineering. Part 8: Conclusion – Don't Waste Your Time
No. OpenCore works on Intel Hackintoshes. M1 Macs do not allow bootloader-level spoofing because the Secure Boot chain verifies every component before execution. A spoofed serial would still cause a mismatch with the Secure Enclave.
Understanding intent is crucial, because the methods (if any exist) differ based on legality and necessity.