: Registering battery exchanges and checking live engine data. Step-by-Step Driver Installation (Windows 10/11 64-bit)
:
After both .INF files have been successfully installed:
If Windows displays a red warning box stating "Windows cannot verify the publisher of this driver software", click .
Modern Windows versions block unsigned drivers by default. Since the working BMW Scanner drivers are older and lack modern digital signatures, you must temporarily disable this security feature. bmw scanner 140 drivers
Download the executable application (usually named BMW_Scanner_140.exe or similar) from a trusted BMW enthusiast forum or software repository.
BMW Scanner 1.4.0 was designed during the Windows XP and Windows 7 era. It relies on hardware drivers that lack modern digital signatures required by newer operating systems.
Follow this guide carefully. Do not plug in the scanner until instructed.
Hold down the key while clicking Restart in your Windows Start Menu. : Registering battery exchanges and checking live engine
Your computer will boot into Windows normally, but will now allow you to install unsigned drivers. Step 3: Install the Drivers via Device Manager
The desktop application must run with administrative privileges to communicate with the driver interface properly.
Click .
In Device Manager, you will now see a new yellow triangle under "Ports (COM & LPT)" named . Right-click it, choose Update Driver . Repeat the process of browsing to the driver folder. Once completed, the yellow triangles should disappear. Step 5: Verify Functionality Open the BMW Scanner 1.4.0 software . Since the working BMW Scanner drivers are older
After the restart and without plugging in the scanner cable again, navigate to the "Scanner Driver" folder within your extracted software package.
Because the hardware uses a specialized USB-to-serial chip, for the computer to recognize the interface. Getting the Correct Drivers (Windows 10/11)
The BMW Scanner 1.4.0 interface uses a specific hardware chip manufactured by FTDI.