Txnr646 Firmware Update 2021 ((better)) Review

Patched digital signal processing (DSP) bugs causing audio to cut out during DTS:X and Dolby Atmos playback.

: Press ENTER . The front panel display will switch to a "Now Initializing..." text indicator. Do not turn off the power until the display explicitly reads "Completed!" or "Complete" .

Visit the official Onkyo Support website, locate the TX-NR646 downloads page, and download the 2021 firmware ZIP archive. txnr646 firmware update 2021

Before attempting any update, it is best to check which firmware version is currently installed. To do this:

Navigate to (or System Setup ) and press Enter. Scroll down to Miscellaneous , then select Firmware Update . Patched digital signal processing (DSP) bugs causing audio

When researching the , you’ll encounter several version designations. The main release that rolled out between December 2020 and March 2021 is:

: Improves stability for high-resolution 5.6 MHz DSD files streamed from a local NAS drive or media server. Step 1: Check Current Firmware Version Do not turn off the power until the

Last updated: 2025 – This guide remains accurate as no further firmware updates have been released for the TX-NR646 after 2021.

Insert a standard USB flash drive into your computer and format it (ensure it is empty).