You had to hold the MFC button down. Not click it. Hold it. While pressing A and B together. While the D-pad traced a forbidden sequence—Up, Up, Down, Down, Left, Right, Left, Right, B, A, then a full clockwise rotation.
MFC-8 > **TAMPERING DETECTED. COUNTERMEASURES ACTIVE.** full eight bit mfc full
Towards Fully 8-bit Integer Inference for the Transformer Model You had to hold the MFC button down