The loader, often packaged with dubious interfaces from Chinese marketplaces (eBay, AliExpress), is designed to bypass the software’s anti-piracy checks. But users frequently encounter a dead-end message:
The Kolimer loader must reside in the exact same root directory as the official VCDS application file.
You can safely update to the latest versions of VCDS without the fear of your hardware becoming a useless paperweight.
VCDS by Ross-Tech is professional-grade diagnostic software that requires proprietary hardware to function. Third-party manufacturers often reverse-engineer these cables and provide hacked versions of the software and "loaders" to bypass the authenticating chips inside legitimate cables. vcds loader kolimer failed 2 top
By following this systematic guide, you should be well-equipped to diagnose the root cause of the "Failed 2 Top" error and get your VCDS system working reliably again. A clean, compatible installation is key to avoiding these issues and enjoying the full diagnostic power of your tool.
Plug the cable into the car (ignition ON) and then the laptop. Device Manager Ports (COM & LPT) to ensure the interface is recognized. In the VCDS software, go to
The error message that occurs when using cracked or cloned VAG-COM diagnostic cables (such as ATmega162 or STM32F425 chips) alongside Kolimer’s custom bypass launcher ( VCDSLoader.exe ). This failure generally signifies an absolute breakdown in communication between the computer's operating system, the anti-piracy countermeasures embedded inside the software, and the physical interface cable. The loader, often packaged with dubious interfaces from
Reinstall the specific VCDS version that came with your cable (e.g., 20.4 or 22.3) and use the Kolimer loader provided with that specific kit. Prevention Tips keep your internet off when using clone cables. click "Update" if the software prompts you.
This error typically occurs when a "clone" (non-genuine) VCDS interface has been "deactivated" or bricked, often due to launching the software with an active internet connection or after a firmware update Common Fixes for Kolimer Loader Failure Disable Internet and Antivirus
Reinstall the precise, matching VCDS software version intended for your specific loader pack. During setup, if prompted, choose the even if your laptop uses a 64-bit operating system. Step 2: Configure Antivirus and Memory Integrity Exceptions A clean, compatible installation is key to avoiding
You may need to use a config utility (like VCIConfig) to force the interface to check for updates or restore its original state.
: The loader often requires specific Visual C++ Redistributable packages or .NET Framework versions to run its shell.
Go back to Virus & threat protection settings , click , scroll down to Exclusions , and add the entire VCDS installation folder (typically C:\Ross-Tech\VCDS ) to the exclusion list. Step 2: Perform a Clean Rollback Installation