Owner's Manual
Page 85
...the Other Setup menu. 2 Select the update procedure. ! The volume cannot be adjusted on the front panel). ! Updating via USB UE11 UE22 UE33 Descriptions Try disconnecting then reconnecting the USB device or storing the update file again. If an update file is performed by operating VOLUME button... checks whether the USB memory device inserted into the USB port on the USB memory device. Wait a while. 3 Check on the Pioneer website. If the error still occurs, try updating the software again. CAUTION ! This sets how much the volume is to Variable upon shipment from the AUDIO ZONE...
...the Other Setup menu. 2 Select the update procedure. ! The volume cannot be adjusted on the front panel). ! Updating via USB UE11 UE22 UE33 Descriptions Try disconnecting then reconnecting the USB device or storing the update file again. If an update file is performed by operating VOLUME button... checks whether the USB memory device inserted into the USB port on the USB memory device. Wait a while. 3 Check on the Pioneer website. If the error still occurs, try updating the software again. CAUTION ! This sets how much the volume is to Variable upon shipment from the AUDIO ZONE...