Kess V2 Protocol Not Found -
to prevent token locking and protocol deletion. Must be ON or verified for license synchronization. Software Launch Always run as Administrator. Keep automated Alientech Suite updated. SD Card Care Use high-quality replacements if corruption occurs. Do not modify hardware; contact official support.
Whether you are using an original Alientech tool or a Kess V2 Master clone, this guide will walk you through the primary causes and the step-by-step solutions to get your tuning project back on track. What Causes the "Protocol Not Found" Error?
If the KESS tool does not get power from the vehicle, it cannot launch the protocol. kess v2 protocol not found
Whether you are using a or a clone device (and the firmware version, e.g., v5.017)
Using a card reader, re-flash the card. This involves copying the correct, original protocol files (usually named 4.036 , 5.017 , etc.) back onto the card. to prevent token locking and protocol deletion
Before diving into the fixes, it’s important to understand why this happens. The error usually stems from one of four areas:
Firmware 5.017 offers expanded protocol support (over 140 protocols) including EDC17, DSG/DQ200/DQ250/DQ500 transmissions, and ST10 processors. If experiencing protocol issues with this version: Keep automated Alientech Suite updated
The following steps were executed to isolate the fault:
If using a clone tool, open the casing and check if the internal SD card is securely seated in its slot.




