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Identify the large square chip and the smaller FTDI chip (usually FT232BL or FT232RQ).
The firmware flash was incorrect, or the chip was not connected properly during flashing.
to prevent the software from deactivating your cable online. Reflashing Procedure (USB/Loader Method) Hardware Identification: VAGCOM_HWType.exe to read the current hardware type of your cable. Flash EEPROM: VAGCOM_EEWriteLang.exe vcds atmega162 reflash 2021
This update differentiates itself from older 2014/2016 flashes by addressing:
Unplug the USBASP and plug the VCDS cable directly into a USB port. Open . Click Devices -> Scan and Parse . Identify the large square chip and the smaller
Official VCDS software from Ross-Tech contains anti-piracy mechanisms. When a clone cable is connected, the software can detect that it is not a genuine interface and flag its license status as "Revoked". A confirmed working cable displaying a revoked licenseor failing to connectare typical indicators. Once this occurs, the cable is essentially bricked and cannot be used with newer software versions, forcing the user to either reflash the cable's firmware and EEPROM or purchase a new one.
: Block the VCDS.exe file in your Windows Firewall to prevent it from reaching the Ross-Tech servers. Click Devices -> Scan and Parse
Once reflashed, the interface requires specific operational protocols to prevent the Ross-Tech software from modifying the chip again.
Plug the cable into your PC. Open Windows Device Manager. It should display under Universal Serial Bus Controllers as a specialized interface, not a generic serial port.
By 2025, the ATMEGA162 reflash is largely historical. Modern clones have moved to STM32F405 with firmware emulation, while Ross-Tech now uses certified secure elements (like Microchip ATECC608) in the HEX-NET 2.0. The lesson remains: