: Use the VCI Config Utility (often included in the loader package) to check the interface status. Action : Open the VCI Config tool.
return "SUCCESS: Repair completed"
For a walkthrough on how to fix an interface stuck in update mode, which often causes these errors, see this guide: vcds loader kolimer failed 2 updated
The loader lacks the system permissions required to modify files inside the C:\Ross-Tech\VCDS directory.
The classic Kolimer Loader (such as versions 9.1 and 9.2) was explicitly designed for cables engineered around the chip architecture. If you try to force this loader onto a newer STM32-based or VII-Plus-driven cable interface, the loader configuration phase will fail completely. Step-by-Step Solutions to Resolve the Issue : Use the VCI Config Utility (often included
Once the drivers update successfully, restart your PC, keep your antivirus disabled, and run the loader as an administrator. Method 4: Rewriting the Cable Firmware (The Last Resort)
However, one of the most common and frustrating errors users encounter is the message (often read as "Failed to Update"). This error essentially locks you out of your diagnostics, preventing the loader from launching the VCDS software. The classic Kolimer Loader (such as versions 9
Right-click on the shortcut or executable file. Select Properties from the context menu. Navigate to the Compatibility tab. Check the box next to Run this program as an administrator . Click Apply and then OK . 2. Configure Antivirus Exclusions
: Open Windows Security , navigate to Virus & threat protection settings , and temporarily turn off Real-time protection .
Official Ross-Tech interfaces should be updated via the official Ross-Tech download page . If you are using an unofficial interface, avoid clicking "Update" within the main VCDS software, as this can "brick" the cable or revoke the license.
Aftermarket interfaces usually rely on chips like the Atmega162 or the STM32F405 . These chips require specific firmware versions to communicate reliably with the loader.