Kess V2 Protocol Not Found ((top)) Official

The "Protocol Not Found" error in KESS V2 usually indicates a failure to read the device's internal SD (TF) card or a corruption of the firmware/files stored on it

Based on standard diagnostic procedures, the "Protocol Not Found" error typically stems from one of three categories: Hardware Connection, Software Configuration, or ECU Architecture. kess v2 protocol not found

If the above fails, the internal 2GB TF (MicroSD) card inside the KESS unit may be corrupt: The "Protocol Not Found" error in KESS V2

: On some older firmware (like FW 4.036), replacing a specific USB protection resistor (UL46) on the PCB has been known to fix general connection and detection errors. Summary of Solutions by Symptom Symptom Likely Cause Recommended Action Error appears for all protocols Internal SD card failure kess v2 protocol not found