MZD升級步驟 1. FIRMWARE version for 'EU N' for CP/AA of two .up files. cmu150_EU_70.00.021A_failsafe.up file MUST be Installed FIRST. cmu150_EU_70.00.021A_reinstall.up file MUST be Installed SECOND. 2. C830-V6-60Z New USB Data Cable set of two, MUST be Installed THIRD. 3. TK78-66-9U0C New AUX Unit, MUST be Installed LAST.