USB flash drives cannot be played back
USB flash drive is not recognized.
Disconnect and reconnect the USB flash drive. link
Mass storage class compatible USB flash drives are supported.
This unit does not support a connection through a USB hub. Connect the USB flash drive directly to the USB port.
The USB flash drive must be formatted to FAT32 or NTFS.
Not all USB flash drives are guaranteed to work. Some USB flash drives are not recognized. When using a type of portable hard disc drive compatible with the USB connection that requires power from an AC adapter, use the AC adapter that came with the drive.
Set “Network & USB-A” in the menu to “On”. The USB flash drive playback function does not work when “Network & USB-A” is “Off”.link
Files on the USB flash drive are not displayed.
Files of a type not supported by this unit are not displayed. link
This unit is able to display files in a maximum of eight folder layers. A maximum of 5000 files (folders) can also be displayed for each layer. Modify the folder structure of the USB flash drive.
When multiple partitions exist on the USB flash drive, only files on the first partition are displayed.
iOS and Android devices are not recognized.
The USB port of this unit does not support playback from iOS and Android devices.
Files on a USB flash drive cannot be played.
Files are created in a format that is not supported by this unit. Check the formats supported by this unit. link
You are attempting to play a file that is copyright protected. Files that are copyright protected cannot be played on this unit.
Playback may not be possible if the album art file size exceeds 2 MB.