Numan Two Manuel page 100

Notification
No USB device found (No USB
device found)
USB device unsupported (The
USB device is not supported)
USB error
USB read error (USB cannot be
read)
USB underpowered (USB
connection without power)
Waiting for Users
Press Play
Description
No USB device has been connected
The format of the USB stick is not supported
General USB problems
Certain files of the USB stick
cannot be read
The USB connection is not supplied with power- remove the
USB stick
Spotify mode - No Spotify account has been connected to the
device. Connect a Spotify account to the device via Spotify
Connect
Spotify mode - waiting for playback information; for example,
when audio playback is diverted from the Spotify app to another
audio speaker or the smartphone itself.
100
Potential cause
There are faulty files on the
USB stick