Why does my VT55/VT56 start flashing when I connect the OBDII module to a vehicle for the first time after updating my tool’s software?

There is new firmware available for the OBDII module, and the device is attempting to communicate with the vehicle and complete a firmware update at the same time. Simply power the tool off and then on again. Once the main menu is displayed, connect the OBDII module only to the device; leaving the other end disconnected from any vehicle. The OBDII module will be detected almost immediately by the tool and the firmware, and the update will begin. The update takes less than 60 seconds to complete. Once completed, disconnect the OBDII module and power the device off. The update is now complete.