Bmw Scanner 140 Drivers !exclusive! File

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.

The "long story" usually involves wrestling with Windows security settings to force-install unsigned drivers. 1. Disable Driver Signature Enforcement

This is the most critical hurdle. Windows 10 and 11 will block the drivers by default because they aren't "trusted". Update & Security Advanced startup Restart now After the reboot, choose Troubleshoot Advanced options Startup Settings Once the menu appears, press ) to select Disable driver signature enforcement 2. Manual Driver Installation

The automated installer usually fails. You must point Windows to the files manually via Device Manager Bimmerforums.com

Plug the scanner into your PC. It will likely show up as an "Unknown Device" or "BMW Scanner" with a yellow exclamation mark. Right-click the device and select Update driver Browse my computer for drivers Let me pick from a list of available drivers on my computer and navigate to your extracted driver folder (often labeled Drivers_x64 Look for the ftdibus.inf file. Select USB Serial Converter A , ignoring the red security warnings. Bimmerforums.com 3. Fixing the "Hardware Faulty" Error

Even with drivers installed, many users see a "Hardware Faulty" message when opening the software. Power the Scanner

: The software often won't open unless the scanner is plugged into the computer's USB port and the car's OBDII port with the ignition turned on. The Solder Bridge

: Many cheap Chinese clones (v1.4.0) require pins 7 and 8 on the OBD connector to be soldered together to communicate with all modules (like the E46 DME and EGS). 4. Software Compatibility Run the main executable ( BMWScan140.exe Administrator Compatibility Mode Windows XP (Service Pack 3) by right-clicking the shortcut and selecting Properties

For a smoother experience, many enthusiasts recommend using a Virtual Machine (like VirtualBox) running Windows XP 32-bit

, which accepts the original drivers without any modifications. Are you currently seeing a specific error message like "Hardware Faulty" or "Drivers not installed"? bmw scanner 140 drivers

BMW scanner 1.4 installation tutorial for Windows 10. (PA Soft)

Getting Your BMW Scanner 1.4.0 (PA Soft) Running on Windows 10/11

If you’ve recently picked up a BMW Scanner 1.4.0 (often called "the Bobcat" or "PA Soft"), you’ve likely realized the included disc is basically a coaster. Getting the drivers to play nice with modern 64-bit versions of Windows is the biggest hurdle, but it is entirely doable with a few manual steps. 1. The Driver Dilemma The scanner uses an

to communicate via USB. Modern Windows versions often automatically install the latest FTDI drivers, which unfortunately can "brick" or ignore the older clones used in many cheap BMW scanners. You need the specific x64 D2XX drivers . Many enthusiasts recommend using the FTDI Chip D2XX Drivers

directly or finding the "patched" version common on forums like Bimmerforums 2. Bypass Driver Signature Enforcement

Windows 10 and 11 won't let you install "unverified" drivers by default. You have to temporarily lower the gates: Method A (CMD): Run Command Prompt as Admin and type: bcdedit /set testsigning on , then restart your PC. Method B (Advanced Startup):

Go to Settings > Recovery > Advanced Startup. Upon restart, choose

Troubleshoot > Advanced options > Startup Settings > Restart to "Disable driver signature enforcement". 3. Manual Installation (The Critical Step)

Don't use the "Setup.exe" that comes with the software. You must do this through Device Manager Getting the BMW Scanner 1

Plug the scanner into your PC (it doesn't need to be in the car yet). Device Manager

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

Point it to the folder where you extracted the 64-bit drivers.

If it still fails, select "Let me pick from a list," click "Have Disk," and manually select the file from your driver folder. 4. Avoiding the "Hardware Faulty" Error

The most common mistake is trying to run the software while the scanner is only plugged into your laptop. Connect to the Car First:

You must plug the scanner into the car's OBDII port (or the 20-pin under-hood port for older models) and turn the ignition to position 2 before opening the software.

If you get a "Hardware Faulty" message, the software isn't seeing the 12V power from the car. 5. Final Hardware Tweaks

Many of these scanners require a small physical modification to work with certain models (like the E46 or E39). If you can only see a few modules (like DME or EWS) but others are red/missing, you likely need to solder pins 7 and 8 together

inside the scanner plug. This bridges the two K-lines required to read all the car's modules. Was this guide easy to follow? Installation steps Driver links Use a stable 12V supply; avoid running the

BMW scanner 1.4 installation tutorial for Windows 10. (PA Soft)

6. Common Driver Issues & Solutions

| Problem | Likely Cause | Solution | |---------|--------------|----------| | Device not recognized | Missing or wrong driver | Install FTDI VCP driver | | Error "COM port not found" | Wrong COM port in software | Change to COM1 in Device Manager | | Driver "cannot start" (Code 10) | Windows 10/11 blocking unsigned driver | Disable signature enforcement | | Connection drops randomly | USB power saving active | Disable USB selective suspend | | Works on XP but not Win7/10 | Cloned FTDI chip (fake) | Use older driver version 2.8.24 or replace cable | | “No response from ECU” | K-Line/DCAN switching failed | Check ignition, battery, or use 1.4.0 with manual switch cable |

Part 5: Common Driver Issues and How to Fix Them

Even after installation, problems occur. Below is a troubleshooting table.

| 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 |

3. Download Links (Safe & Clean)

Safety & Best Practices

Use a stable 12V supply; avoid running the starter motor while connected.
Do not clear airbags or engine faults unless you understand implications.
Backup any configuration or parameter data before making changes.

For FTDI-based cables:

Download the correct FTDI VCP (Virtual COM Port) driver – version 2.12.28 or older is recommended for stability.
Disable driver signature enforcement (Windows 10/11):
- Restart PC → Advanced Startup → Disable driver signature enforcement.
Connect the USB cable (do NOT connect to car yet).
Install the driver manually via Device Manager:
- Right-click unknown device → Update driver → Browse → Let me pick → Have disk → Select FTDI .inf file.
Verify COM port number (usually COM1-COM4; BMW Scanner software works best with COM1).
Change COM port to COM1 if needed (in Device Manager → Port Settings → Advanced).

3.2 CH341 Drivers (for 90% of clone scanners)

Most budget BMW Scanner 1.4.0 cables use the CH341 series chip. The best driver package comes from:

Source: WCH (Nanjing Qinheng Microelectronics) – official site
File name: CH341SER.EXE (version 3.5 or higher)
Alternative: DriverPack solution offline (use with caution)

Step 3: Windows 10 & 11 Instructions (Critical)

Windows 8, 10, and 11 enforce "Driver Signature Enforcement." The old BMW scanner drivers are not digitally signed, so Windows will block them by default. You must bypass this.

Part A: Disable Driver Signature Enforcement

Click the Start Menu and click the Power button.
Hold the Shift key on your keyboard and click Restart (Keep holding Shift until the PC restarts).
The computer will reboot into a blue "Choose an Option" screen.
Go to Troubleshoot > Advanced Options > Startup Settings.
Click the Restart button.
When the PC reboots, you will see a list of options. Press the number key F7 (or the number associated with "Disable driver signature enforcement").
Windows will now start normally, but allow unsigned drivers.

Part B: Install the Driver

Plug in the BMW Scanner USB cable.
Open Device Manager (Right-click Start Button > Device Manager).
Look for "BMW Scanner" under "Other devices" or "Universal Serial Bus controllers." It may appear as a yellow warning icon.
Right-click it and select Update driver.
Select "Browse my computer for drivers".
Point it to the extracted Drivers folder from Step 1.
Windows will warn you that the publisher cannot be verified. Click "Install this driver software anyway".
Once installed, the device in Device Manager should now show up cleanly under "Universal Serial Bus Devices" as "BMW Scanner."