When Alientech releases a new firmware version, it usually adds support for new vehicle models, fixes bugs in older protocols, and enhances the checksum correction algorithms. The journey to Kess 2.90 was marked by significant milestones:
: Specifically for Scania S6, it achieves nearly 100% connection success, where older versions frequently failed. AliExpress Tool Versions: Master vs. Slave Kess 2.90