Perform the USB update to version 2130-1010-0200 , factory reset, and enjoy a stable home theater experience for years to come.
If your TX-NR646 refuses to update to the 2021 firmware, try these fixes: txnr646 firmware update 2021
: If you experience signal loss, try disabling "Deep Color" settings in the receiver's menu to improve compatibility with newer 4K devices. Why 2021? Perform the USB update to version 2130-1010-0200 ,
Perform the USB update to version 2130-1010-0200 , factory reset, and enjoy a stable home theater experience for years to come.
If your TX-NR646 refuses to update to the 2021 firmware, try these fixes:
: If you experience signal loss, try disabling "Deep Color" settings in the receiver's menu to improve compatibility with newer 4K devices. Why 2021?