Wepik
: Add the entire KSuite directory to your antivirus exclusion list and reinstall the USB drivers. Error: "Protocol Not Found"
For a professional business, the risks are completely unacceptable. The potential for a failed flash that damages a customer's vehicle, the lack of customer support, and the legal implications of using pirated software make using a clone unit and cracked KSuite version 2.90 a highly inadvisable practice. The time lost troubleshooting unstable software or repairing a botched flash far outweighs the initial savings.
: Many unofficial download links for "Kess 2.90" are hosted on file-sharing sites that may contain viruses or bloatware.
Covers over 140 protocols, including Line, CAN, EDC17, and MED17, supporting cars, trucks, tractors, and bikes.
The software cannot verify the integrity of the modified tuning file. Kess 2.90 Download
Follow the on-screen instructions to install the USB drivers for the KESSv2 hardware.
Designed primarily for OBDII connection, allowing for rapid communication without removing the ECU, though it also supports bench connections for specific ECUs. 3. Pre-Installation Requirements
Before any software is installed, you will need the actual KESS v2 clone unit. The hardware market for these is dominated by Chinese manufacturers. Be aware that there are different hardware revisions, and the second version (often identified by having two vertically aligned LEDs) is generally considered more reliable. You will also need a stable battery voltage stabilizer, such as an MST-80, to ensure a consistent power supply during the ECU writing process, which is critical to prevent failures.
For professional-grade support and the most recent vehicle protocols, Alientech now focuses on the KESS3 hardware, which combines OBD, Bench, and Boot tuning into a single tool. : Add the entire KSuite directory to your
: Best performance is usually found on Windows 10 (64-bit) or Windows 7.
Kess 2.90 (often paired with KSuite) is an updated software version designed for Kess V2 master/slave tuning hardware. It allows mechanics and car enthusiasts to read and write ECU data directly via the vehicle’s OBD2 diagnostics port. Key Features of Version 2.90
Covers a vast range of vehicle protocols, particularly for newer ECUs that require specific unlocking procedures, such as BOSCH EDC17, MED17, and even some MD1/MG1 series.
These specific version numbers are frequently associated with "clone" hardware found on forums like or community sites like The time lost troubleshooting unstable software or repairing
To run Kess 2.90 reliably, certain technical standards must be met:
Tuners often prefer because it balances stability with modern protocol support, making it ideal for both European and Asian vehicle models from ~2005 to 2018.
The transition from older K-Suite versions to 2.90 offers several advantages:
Check the box for “USB Drivers for Kess V2.” Complete the driver installation wizard.
