Txnr646 Firmware Update 2021 Fix Direct

Updated internal handshakes for Spotify Connect, AirPlay, and built-in TuneIn radio.

This is often caused by an internal chip timeout. Leave the unit alone for up to 30 minutes. If it remains completely frozen, pull the power cord, wait 60 seconds, plug it back in, and immediately attempt a USB update.

: Fixed a bug that prevented song information from displaying correctly during Sirius XM radio playback. Stability & Compatibility txnr646 firmware update 2021

: Use a wired Ethernet cable instead of Wi-Fi for maximum stability.

If you try to update and it fails:

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

: Patches minor decoding issues and enhances handshaking with modern DTS:X media sources. If it remains completely frozen, pull the power

If your display reads , your receiver is fully up to date and no further action is required. Preparation and Safety Precautions Firmware Update TX-NR646 & TX-NR747 (12-01-2020) - Onkyo

performance and resolve minor bugs that had plagued the DTS:X and Dolby Atmos processing during high-bitrate playback. The Payoff If you try to update and it fails:

With the rise of 4K streaming sticks (Chromecast with Google TV, Fire TV Stick 4K Max) and the PS5/Xbox Series X (though limited to 4K/60Hz on the NR646), users experienced black screens or "no signal" errors. The 2021 patch with newer source devices, reducing the need to power-cycle the receiver.

No. Speaker calibration settings are preserved. However, network and HDMI settings may reset to factory defaults.