The original Alientech KESS V3 comes with hardware only, without any software. You need to purchase software and protocol license of Master version or Slave version according to your desire. Kess V3 Master Version OBD/Bench-Boot Protocols Activation: OBD Protocols activation: choose item No.XNR-SS451-MA001 to XNR-SS451-MA004 Bench-Boot Protocols Activation: choose item No.XNR-SS451-MA005 to XNR-SS451-MA008 Kess V3 Slave Version OBD/Bench-Boot Protocols Activation: … Continue reading ALIENTECH Kess3 Chooses to Protocols Activation According to Your Needs