Fixed a bug that prevented changing customer settings in the web setup menu.

using either a network connection or a USB flash drive. Before starting, ensure that is turned off in the hardware settings. Method 1: Network Update

Connect your receiver to the internet via an Ethernet cable or Wi-Fi. Press the button on your remote. Navigate to System Setup > 8. Misc > F/W Update . Select Update via NET and press Enter.

The Onkyo TX-NR646 Go to product viewer dialog for this item.

Resolved issues with displaying song information for Sirius XM radio. Improved overall playback stability and system reliability. How to Update Your Firmware You can update the

Wait for the display to show and then turn the unit off and back on using the On/Standby button on the front panel. Method 2: USB Update

is , released on December 1, 2020. Although 2021 did not see a new version number for this specific model, updates for similar models in early 2021 fixed critical security and stability issues that users of the 646 were encouraged to verify against their own hardware. Version 1110-6060-1106 (Dec 2020):

Download the firmware ZIP file from the official Onkyo support page .