This article delves into a comparative analysis of two different VCDS clone cables, providing insights into their functionality, performance, and potential drawbacks. We’ll examine a clone based on the Atmega162 chip and another utilizing the Stm32F405 chip, comparing their features and capabilities to help you determine the Best Vcds Clone for your needs.
Atmega162-Based VCDS Clone: A Closer Look
The first cable examined utilizes the Atmega162 microcontroller. This particular clone, marketed as a V2 cable, turned out to be a HEX-CAN cable, an older version. Priced at $29, it required a separate loader executable, flagged as malicious by VirusTotal.
Interestingly, the genuine Ross-Tech HEX-CAN cable also employs the Atmega162 chip.
However, due to the potentially malicious loader and its outdated HEX-CAN functionality, this Atmega162-based clone is not recommended as a viable V2 alternative. Its use might be restricted to a virtual machine environment for security reasons.
Stm32F405-Based VCDS Clone: A Promising Contender
The second cable, priced at $49, is based on the Stm32F405 chip, similar to the genuine VCDS V2 cable.
This cable functioned without requiring a separate loader or modification of the VCDS software. Performance testing over a month revealed faster logging speeds and improved overall responsiveness compared to the genuine HEX-CAN cable.
Further investigation revealed the Stm32F405 chip was locked with RDP Level 2 protection. However, this protection was bypassed using a ChipWhisperer.
While successful in gaining debug access, RDP Level 1 remained active, requiring further techniques like clock glitching for stable memory access. This clone came with VCDS version 20.4.1, and it’s unlikely to be compatible with future VCDS versions requiring firmware updates.
Conclusion: Choosing the Best VCDS Clone
While a genuine VCDS cable is always recommended, the Stm32F405-based clone offers a functional, budget-friendly alternative for basic diagnostic needs. However, its limitations regarding future updates and potential compatibility issues should be considered. The Atmega162-based clone, posing security risks and offering outdated functionality, is not a recommended option. For reliable and long-term use, investing in a genuine VCDS system remains the optimal choice.
