Before upgrading, back up your current Kess configuration and all ECU files. If you encounter new ECU types or errors after updating, document them and share with the tuning community or your supplier for quick help.
Alientech KESS3 vs Alientech KESS V2: Ultimate Technical Comparison Kess 2.90
: Open K-Suite and select the vehicle category (e.g., Cars). Navigate by manufacturer and model to find the correct protocol. Before upgrading, back up your current Kess configuration