Txnr646 Firmware | Update 2021
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 enhanced HDMI handshake timing with newer source devices, reducing the need to power-cycle the receiver.
Some users reported post-update glitches. Here’s how to resolve them:
Perhaps the most strategic element of the updates
For the Onkyo TX-NR646 Go to product viewer dialog for this item. txnr646 firmware update 2021
, finding specific firmware updates released in 2021 is challenging because this model has largely reached its end-of-life for major software support. However, there is some key information regarding its final known updates and related maintenance you should know. Current Firmware Status
Latest Known Version: The most recent official firmware version reported for the is 1110-6060-1106, which was released in December 2020. Key Fixes in Final Updates: Expanded DTS:X playable content. Improved stability for DSD playback.
Resolved audio drop-out issues during Play/Pause/FF/FR on certain DVRs/STBs. Minor bug fixes and general stability improvements. Update Recommendations With the rise of 4K streaming sticks (Chromecast
If you are looking for content to improve your receiver's performance today, consider these actions:
Check Your Current Version: Use the remote to go to Setup > Miscellaneous > Firmware Update to see your version. If it’s older than 1110-6060-1106, you should update. USB vs. Network Update: For older models like the
, a USB update is often more reliable than a network update to avoid "bricking" the device during the process. Troubleshooting Tips (2021 & Beyond): Here’s how to resolve them: Perhaps the most
WiFi/AirPlay Issues: Many users have reported flaky network features. If your firmware is current and issues persist, a factory reset (hold CBL/SAT + On/Off) can sometimes clear persistent bugs.
HDMI Stability: If you experience signal loss, try disabling "Deep Color" settings in the receiver's menu to improve compatibility with newer 4K devices. Why 2021?
While newer models (like the TX-NR696 or TX-RZ50) received updates in 2021 for things like TIDAL security logins or Chromecast authentication, those specific patches were generally not back-ported to the TX-NR696 - Firmware Updates – Onkyo Product Support
There are two ways to update the firmware on the TX-NR646. Method A is preferred if your receiver is connected to the internet.