The official procedure to update firmware on the home theater system is performed via the USB port . This process typically takes about 30 minutes to complete. Update Preparation

Obtain the latest firmware (a .zip file) from the Pioneer Support portal.

in the hardware settings before starting to prevent accidental interruptions.

The most common reason to update is to fix HDMI connection issues. Early firmware versions on this unit often struggled with "handshakes" (the moment the receiver and TV connect).