The invention relates to an FOTA upgrading method and
system capable of configuring an upgrading strategy, a terminal and a medium, and belongs to the technical field of ECU upgrading. The method comprises the steps that format data composed of multiple rows of records are obtained, the first row of records are read and analyzed, a structural body is configured, and the records comprise the Z0
record, the Z1
record, the Z2
record,..., the Zn record; reading the next row of records in the format data, judging the type of the records, executing a corresponding refreshing control process according to the type of the records, repeating the steps until the next row of records is judged to be Zn records after refreshing succeeds, analyzing the Zn records, ending refreshing, and completing ECU upgrading. When different ECUs are upgraded, the ECU
software flashing function of different flashing processes can be achieved by loading the format data, T-BOX
software does not need to be changed, the
software quality can be guaranteed while the
software development workload is reduced, and the customer experience is optimized.