MCM2.1 Flash & EEPROM Read/Write versions: HW: D2.x, D3, D4, D5 NO NEED to open ECU!!! All functions done by cable or OBD! Read (MCM2.1 D2, D3, D4, D5):   - PFLASH+DFLASH (4160KB)   - EEPROM (32KB) Write (MCM2.1 D2, D3, D4, D5):   - PFLASH (4096KB)  or  PFLASH+DFLASH (4160KB)   - EEPROM (32KB) To read/write MCM2.1 D4 or D5  need online!