Files cannot be recognized?
This issue is related to motherboard, USB flash drive, firmware, files.
Photo of the page that provides the error message. Check the customer's file to see if the file name is garbled with special characters or exceeds the length.
Provide a screenshot of the firmware version information & provide the SN code at the bottom of the machine. Do you want to refresh the firmware? Is the model selected incorrectly? Is the file naming format incorrect?
Send the machine test file to check whether the U disk is faulty. FAT32bit format USB2.0 series USB drive within 32GB or other U disk test test files
If no improvement, replace the motherboard and USB flash drive