Sometimes the error is purely digital. If your K-Suite version doesn't match the firmware version of your KESS hardware, protocols may appear greyed out or "not found".
Before you blame the software, check your physical setup. KESS V2 is notoriously sensitive to voltage instability. kess v2 protocol not found
: For red PCB clones, ensure the image on the SD card is the correct size (usually around 69MB). Smaller, incomplete images are a frequent cause of "Wake up" and "Protocol not found" errors. 2. Software Compatibility & Versioning Sometimes the error is purely digital
| Cause | Solution | |-------|----------| | | Manually choose correct ECU family (Bosch EDC17, Delphi DCM3.7, etc.) | | Bad OBD connection | Check pins 6 (CAN High) & 14 (CAN Low) — use multimeter | | Clone Kess V2 with old firmware | Update firmware or use compatible software version (e.g., 2.23, 2.47) | | Missing protocol files | Reinstall KSuite software — ensure Protocols/ folder exists | | ECU needs boot mode | Use KTag or open ECU for BDM/TRICORE connection | | Driver issue | Reinstall USB drivers (FTDI or SiLabs) | | Voltage too low | Use external 13.5V+ power supply on OBD | KESS V2 is notoriously sensitive to voltage instability