“Do not download Delphi 3201. They know.”
His oscilloscope caught it—a low-frequency carrier wave superimposed on the power line, backfeeding into his bench’s 12V supply. It was phoning home. But to where?
Connect the VCI to your PC via USB and the OBD-II port for power.
Updating firmware carries a small risk; if the power cuts during the process, you could "brick" your device. Follow these steps carefully: Never update firmware over Bluetooth.