Firmware Update Instruction

Update the firmware via network or USB connection.

"Updating the firmware via network"
 You can update the firmware by connecting the unit to a network.

"Updating the firmware via USB connection"
 You need a 128 MB or larger capacity USB storage for updating.

For details, see "Firmware Update" of the Instruction Manual.

http://jp.pioneer-audiovisual.com/manual/vsx832/top.pdf
Instruction Manual found here