If software locks cannot be bypassed, you must use a hardware programmer (like the ) to manually flash the older firmware directly onto the motherboard's SPI chip. This requires physical access to the board and carries a high risk of bricking if the wrong image is used.
Modern Intel platforms (v12 and newer) have stricter Anti-Rollback mechanisms that may permanently brick the system if an older ME version is detected. me firmware downgrade
Downgrading Intel Management Engine (ME) firmware is generally to prevent rollbacks to versions with known vulnerabilities . Standard update tools like the Asus MEUpdateTool will typically throw an error if you attempt to install an older version. If software locks cannot be bypassed, you must