Disable automatic driver updates for that specific hardware ID in Windows, or use a tool like "Show or hide updates" troubleshooter from Microsoft to block Windows from updating the FTDI driver.
Select and choose "USB Serial Converter A" from the list.
Remove the four small screws holding the plastic casing of your BMW Scanner 1.4.0 cable together. Locate the circuit board where the OBD2 pins are soldered. Find the pins clearly labeled and 8 .
Windows Update will frequently overwrite your manual driver with a newer, non-working generic driver. bmw scanner 140 drivers
Your computer will boot into Windows normally, but will now allow unsigned driver installation until the next restart. Step 3: Install the Drivers via Device Manager
Locate "BMW Scanner V14x" (likely under "Other Devices" with a yellow triangle). Right-click it and choose . Select "Browse my computer for driver software".
| Symptom | Likely Cause | Solution | |---------|--------------|----------| | "Interface not found" in PA Soft | Wrong COM port or driver conflict | Force COM port to COM1-4 in Device Manager > Advanced | | Yellow exclamation mark in Device Manager | Counterfeit FTDI chip blocked by new driver | Downgrade FTDI driver to version 2.12.24 or use Zadig tool to install libusb | | Driver installs but car connection fails | Baud rate mismatch | In Device Manager, change baud rate to 9600, 8 data bits, 1 stop bit, no parity | | Windows keeps overwriting driver | Automatic driver updates enabled | Go to System Properties > Hardware > Device Installation Settings > "No" | | Scanner works once then disappears | USB selective suspend | Disable USB selective suspend in Power Options > Advanced settings | Disable automatic driver updates for that specific hardware
Because the original software was designed during the Windows XP era, the drivers lack the digital signatures required by modern 64-bit systems. This comprehensive guide covers everything you need to download, install, and troubleshoot BMW Scanner 1.4.0 drivers to get your diagnostics running smoothly. Understanding the Driver Problem
: Enabling/disabling features like daytime running lights, selective central locking, automatic door locking at speed, and window closure via the key fob.
: Perform EWS-DME adaptations or check live data from the engine and transmission. Locate the circuit board where the OBD2 pins are soldered
Look for a file named ftdibus.inf or ftdiport.inf . Select it and click , then click OK .
John joined a forum dedicated to BMW owners, where he shared his experiences and learned from others. He discovered that many owners were using the BMW Scanner 140 to take control of their vehicle's maintenance and repairs.
Getting the BMW Scanner 1.4.0 (often called "the Bober" after its creator, P.A. Soft) to work on modern Windows is notoriously difficult because the hardware uses an old that lacks digital signatures for 64-bit systems.