Txnr646 Firmware Update 2021

This cumulative update addressed several operational issues to ensure the receiver's long-term usability:

Select . Note that the update is only selectable if a newer version is available. txnr646 firmware update 2021

Note: If the option is grayed out, wait a few minutes for the unit to fully initialize. . 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 with newer source devices, reducing the need to power-cycle the receiver. txnr646 firmware update 2021

As documented on AVS Forum and Reddit’s r/hometheater:

No new security or feature updates were included.