This deep-dive guide covers why this error happens, how to troubleshoot it, and how to rewrite your cable's firmware if it has been bricked. 1. What Causes "VCDS Loader Kolimer Failed 2"?
Before fixing the error, you must understand the ecosystem.
: Some users have resolved connection and loader failures by reinstalling the VCDS software using the 32-bit version , even on 64-bit Windows laptops. Update the Loader Version
Run the EEPROM erasing tool with the cable plugged into your PC's USB port to clear the corrupted, blocked configuration state. vcds loader kolimer failed 2
If the loader still fails to launch, your system might be missing critical components. The Kolimer loader is a program, and like any program, it needs a specific runtime environment.
Right-click the interface (often named Ross-Tech HEX-USB or FT232R USB UART ) and select . Check the box for Delete the driver software for this device .
When you see the "Failed 2" status, it means the loader successfully launched on your Windows PC, but when it reached out to communicate with the cable's internal microprocessor, the handshake failed. Primary Causes of the "Failed 2" Error This deep-dive guide covers why this error happens,
Go to Virus & threat protection settings -> Manage settings .
If software adjustments do not resolve the "Failed 2" message, your clone cable is likely bricked. You must manually re-flash the ATMEGA162 chip and the FTDI chip (usually an FT232RQ or FT232BL) inside the cable.
Completely uninstall your existing VCDS program and delete any leftover folders inside C:\Ross-Tech\ . Before fixing the error, you must understand the ecosystem
Plug in the cable and look for it under Universal Serial Bus controllers or Ports (COM & LPT) .
: The Kolimer loader is often flagged as a false positive. If the antivirus deletes or blocks a component during execution, "Failed 2" is a common result.