How to transfer from UFS to MCU (stm32)

Hello everyone!

I am performing OTA on stm32 via ec200

I downloaded file from FTP to UFS in ec200, but i dont know how to transfer file downloaded to stm32, anyone have solotion?

Please provide the detailed firmware version, or you can refer to the FILE documentation《Quectel_EC200x&EG91xN&EG912Y&EG950A_Series_FILE_Application_Note_V1.3》