Here is the instruction on personalizing and activating Xhorse ELV Emulator for W204 W207 W212 by VVDI MB Tool key programmer. This is an ELV Emulator. The ELV is not personalized. Open VVDI MB BGA Tool software Select ESL tools Click on Read ESL data Read ESL data complete Untick Personalized and Activated option Then selet EIS Tools Select OBD> Chassis Click on Read EIS data Click Get to erase EIS key password Now paste key password Select Save EIS data Press OK to save HC05 format file Select IR mode click on Renew EIS Insert IR key to EIS Insert IR adapter to car. Take out and insert again if already inserted. Remain 28 seconds. Erasing EIS success Select OBD mode Select Read EIS data Reading data success, EIS is normal. Click on Load EIS data Open EIS data saved previously Click Write VIN Confirm VIN and press Yes to continue Write VIN success Select IR Select Write EIS data Click Yes Writing data, please wait Writing data success Select OBD mode Select Personalize W204 ESL Personalizing ESL success Select Read EIS data Now the ELV is personalized Select Read EIS data Reading data success, EIS is normal. ELV is personalized and activated.