UPA-USB Script for mileage correction of odometer in the dashboard of the production of DECAY for Lifan and Chery cars with eeprom 24C16. Crypto checksum. The calculator contains all the necessary tools to read and process the dump file. . Accuracy of 1 km. the Calculator contains help files, supported by tips and operational information. In the information field of the tracing paper you will find additional information: the size of the dump file and the hex code responsible for the mileage readings.