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Fixed an issue where song information for Sirius XM radio was not displayed correctly.
Select Update and press Enter . Do not turn off the power until the front display reads "Completed!" . Common Troubleshooting in 2021 and Beyond Firmware Update TX-NR646 & TX-NR747 (12-01-2020) - Onkyo
Given the high risk of failure and the removal of the official file, the safest course of action for most users is to have the update performed by an authorized service center.
Optimizes internal APIs for built-in services like Spotify Connect, TIDAL, and Deezer.
For those seeking to enhance their home setup with the latest technology,, I can also provide tips on how to properly calibrate your speakers, troubleshoot HDMI ARC connectivity, or help you compare the TX-NR646 to modern AVR models. Let me know what you'd like to explore! Share public link txnr646 firmware update 2021
Insert the USB drive into the front panel USB port of the receiver. Press on your remote control. Go to Miscellaneous and select Firmware Update . Select Update via USB . Confirm the action to begin installation.
The email outlined the plan for the day: a thorough review of the update, a final test, and then deployment. Ryan felt a mix of excitement and nerves. This update was a major milestone, and he was eager to see the txnr646 firmware in action.
This approach minimizes the risk of network-induced corruption or bricking during the installation process.
Network infrastructure and minor audio decoding stabilization Onkyo TX-NR646 (North American and European variants) Preparation: Pre-Update Checklist Fixed an issue where song information for Sirius
In October 2021, Onkyo released a silent revision: . This update only appeared for units that had already installed the February patch. Its only change was:
If you still own the Onkyo TX-NR646 in 2024 or 2025, the 2021 firmware update represents the final, optimized state of the machine. It transforms a buggy 2015 receiver into a reliable 4K HDR hub for modern consoles and streaming devices.
: Corrects a bug that prevented track metadata, song titles, and artist info from displaying properly during SiriusXM playback.
A minor security fix was applied to the receiver’s embedded network stack to address a , which had been flagged by security researchers in older network audio products. Common Troubleshooting in 2021 and Beyond Firmware Update
: Navigate to 7. Miscellaneous → Firmware Update → Update via USB .
The Onkyo TX-NR646 Go to product viewer dialog for this item.
If you're trying to , try: