: Long-time owners strongly recommend avoiding network updates (WiFi/Ethernet). Many users on Reddit reported "bricks" or endless "Now Initializing" loops when updating over the air .
Confirm the update and wait for the "Completed!" status message. Troubleshooting Common Update Issues txnr646 firmware update 2021
mode no longer worked, potentially affecting 4K HDR passthrough for certain devices. Update Failures : A common issue during the update process is the Error 0-21 , which typically indicates a network failure. strongly recommends using a USB flash drive Troubleshooting Common Update Issues mode no longer worked,
Are you planning to update via or a USB drive ? Wait for the progress bar to finish on
Wait for the progress bar to finish on your TV or receiver display. Do not power off the unit until it states .
Update your TX-NR646 to the 2021 firmware today—your ears and your HDMI devices will thank you.