If you tell me what the LED lights are doing (flashing red, blue, green, or off) and what error message VCDS shows, I can give you more specific repair steps.
Many cheaper clones use fake FTDI chips. Replacing the chip with a genuine FTDI FT232RQ or higher quality clone chip improves communication stability and reduces "Interface Not Found" errors. B. Fixing Cold Solder Joints Clone circuit boards are often soldered poorly. Inspect the USB port connections and the ATMEGA chip pins. vcds hex v2 clone repair better
Turn off automatic update prompts within the VCDS options menu. Set the update channel setting to "Never." To help tailor this guide further, let me know: If you tell me what the LED lights