Turn off your internet connection temporarily (to prevent automatic background updates).
Copy the Kolimer loader executable into the installation directory.
Add the entire VCDS installation folder as an exclusion in your antivirus or Windows Defender. vcds+loader+kolimer+failed+2+better
: Modern loaders like Kolimer’s often include safeguards. While older "bootleg" cables could easily be bricked by official VCDS updates, newer clones often feature write protection or utilize specific firmware (like the Atmega162 ) that makes them more resilient to software-induced failures.
Open Windows Explorer and manually delete the installation folder (typically located at C:\Ross-Tech\VCDS\ ). This removes lingering, corrupted loader files. 2. Configure Windows Defender Exclusions Turn off your internet connection temporarily (to prevent
Create a dedicated folder (e.g., C:\VCDS_Diagnostics ) and add it to your antivirus exclusion/whitelist.
If you are seeing a "Failed" or "Failed 2" error, the following steps are commonly used by the community to resolve it: Firmware Mismatch : Modern loaders like Kolimer’s often include safeguards
It is an official product from Ross-Tech. You do not need to use a loader, which means the "failed" error never appears.