or a specialized firmware updater found in "Loader 9.2" archives. Are you using a or an older HEX-USB+CAN

Windows 10/11 includes "Memory Integrity" (part of Core Isolation) that prevents code injection. This is a frequent culprit for "Failed 2."

"Failed 2" error in the Kolimer VCDS loader typically indicates a communication breakdown between the loader software and the diagnostic cable's hardware, often caused by an anti-virus deletion firmware mismatch

: 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.

Do run VCDS from your Desktop, Downloads, or OneDrive folder. Windows protects these folders aggressively (Controlled Folder Access).

: Because it requires disabling antivirus and Core Isolation, it creates a potential vulnerability on your laptop.

: Windows may have automatically updated the USB drivers to an official Ross-Tech version that is incompatible with the loader's requirements.