Some high-speed USB 3.0 or USB 3.1 drives draw too much power or use controller chips incompatible with basic audio gear. Swap to an older USB 2.0 drive.
While holding the button, press the PURE DIRECT button. Yamaha Cd S303 Firmware Update
The (Windows or Mac) you are using to download the file. Any specific error message showing on your display panel. Some high-speed USB 3
" appears on the display, the update has started. This process typically takes about 20 seconds The unit will automatically restart once finished. Yamaha Cd S303 Firmware Update
Right-click the drive and select (Choose FAT32 as the file system). Note: Formatting erases all data on the drive.