EC200U-CNAA file open and file transfer issue

the file is not open through AT command (AT+QFOPEN). is there any limitation of to open file should we know. the file size is 76kb and file is stored in UFS. Also Is there any data transfer limitations from EC200U to External memory or Stm32 board? we are trying to copy data from EC200U’s UFS memory to WQ125q external flash memory whole file (file size =76kb) in one go instead of chunks by chunks. while debugging , it does not able to copy? any suggestion could help!

Hi @Trupti_Yerne
Please pay attention to the following precautions.