Bmw Scanner 140 Drivers Hot! Jun 2026

Look through the list of components. You will likely see a device marked with a yellow warning triangle. It may be named , FTDI FT232R USB UART , or simply Unknown Device . Step 3: Update Driver Software

If the software opens but cannot read your car's modules, it is likely a hardware bridging issue common to cheap clone scanners.

Once the drivers are properly installed, your BMW Scanner 1.4.0 will provide years of reliable diagnostics. Keep a dedicated older laptop or a Windows 7 virtual machine as a backup – but with this guide, you can also make it sing on Windows 11.

. Look for "BMW Scanner" or "Unknown Device" with a yellow exclamation mark. Right-click it and select Update Driver Browse my computer for drivers bmw scanner 140 drivers

The scanner relies on a USB-to-serial chip, usually manufactured by FTDI. The drivers that come on the mini-CD with the scanner are often outdated and will not work on Windows 10 or 11.

Before plugging in your hardware, download a verified PASoft 1.4.0 software package. Most packages come bundled with a folder named Drivers or FTDI_Drivers . If your software package did not include drivers, you can download the standard D2XX architecture drivers directly from the official FTDI Chip website. Step 2: Install the PASoft Application

Select (or USB Serial Converter ) from the list and click Next . Look through the list of components

Type the following command and press Enter: bcdedit /set testsigning on .

Check the box at the bottom for . Click Apply and then OK . Step 5: Testing the Connection Take your laptop and the scanner to your vehicle.

Windows Update frequently overwrites custom or older FTDI drivers with modern, generic Microsoft drivers that break compatibility with the BMW Scanner. Step 3: Update Driver Software If the software

Modern Windows operating systems do not automatically recognize vintage diagnostic interfaces. The BMW Scanner 1.4.0 typically uses one of two USB-to-serial chips:

However, if you own an E39, E46, or E38, the remains the fastest tool for airbag reset and module coding. For these cars, the driver struggle is worth the reward.

Use CDMUninstaller (often found in FTDI driver folders) to remove old or faulty drivers before attempting re-installation ⁠1.2.4 .