If you can provide the (e.g., car head unit, HVAC controller, PLC module) and brand , I can help narrow down the search further.

MHI2-KR-AU57x-S0035 is the original factory firmware version for the Audi MMI MIB2 High infotainment system in Korean-market vehicles, specifically the facelifted Audi A6 (C7) models from around 2015–2016. Key Details System Type: MIB2 High (Harman unit). Region Code: Model Compatibility: primarily found in the Audi A6 C7 (2015–2016). Functionality: This specific stock firmware typically does not include