Step 1: download the attached zip file and unzip it
Step 2: Plug in your Bafang programming cable to your display connector on the bike and the USB into the computer
Step 3: Open Controllerst_torque.exe as an Administrator
Step 4: Select the correct COM port and click Connect
Step 5: Click the "Continuous Get" button on the bottom of the window
Step 6: Apply torque on the crank arms
If the torque sensor is working well, you will see values change under About Tq.