Here’s a solid, practical guide to finding and installing drivers for the BMW Scanner 1.4.0 (also known as "BMW Scanner 140" or "PA Soft 1.4.0").
2. Download the Drivers
You generally should not trust random "driver download" sites. Go to the official manufacturer websites:
Troubleshooting Tips
- No COM port: install correct USB-serial driver (FTDI preferred), try different USB ports, or use another adapter.
- Communication errors: verify COM port number, set correct baud rate, enable correct protocol (check software settings), ensure ignition is ON, and check OBD connector pins and cable continuity.
- Intermittent connection: replace cheap adapters, use ferrite bead on cable, and avoid USB hubs.
- Software compatibility: run older BMW Scanner software in Windows compatibility mode (Windows XP/7) or use a virtual machine with an older OS if necessary.
- Driver conflicts: uninstall conflicting serial drivers (Device Manager → uninstall) and reinstall recommended driver.
To recap:
BMW scanner 1.4 installation tutorial for Windows 10. (PA Soft)
4. Troubleshooting "Device Not Found"
If the software still does not connect to the car:
"Hardware Faulty" Error: This usually happens if the scanner is plugged into the PC but not into the car with the ignition in Position 2.
John was relieved that it wasn't something more serious, but he still wanted to get to the bottom of the issue. He selected the "Live Data" option, which allowed him to monitor the vehicle's sensor readings in real-time.