A wake-up error occurs when the software cannot establish communication with the vehicle's ECU. Ensure the vehicle ignition is turned completely to the ON position (dash lights illuminated), check your OBD2 cable connection, and verify that the vehicle's battery is fully charged.
For those with a legitimate hardware clone (though not recommended), the software typically comes on the driver CD included with the device. claiming "free KESS 2.23" – these are almost always infected. kess v2 223 software download link