JMD Assistant is an OBD model to help HandyBaby to read out data from Volkswagen cars, and it needs your HandyBaby upgrade to at least version 8.0.0.

JMD Assistant reads data from Volkswagen cars only and won 't write any data to cars, even in all key lost , so it won 't be locked when the car connect to the server in 4S. HandyBaby reads data from JMD Assistant with RF, and it no needs any cables or computer during your work.