Txnr646 Firmware Update 2021 May 2026

Without this update, your TX-NR646 will likely drop video signals with a PS5 or fail to display Dolby Vision from a new Chromecast. With the update, the unit runs quietly (fan logic improved), switches inputs faster, and supports the core features that matter.

Date of Analysis: October 2023 (Retrospective deep-dive on 2021 updates) Target Device: Onkyo TX-NR646 (A/V Receiver) txnr646 firmware update 2021

Perform the USB update to version 2130-1010-0200 , factory reset, and enjoy a stable home theater experience for years to come. Without this update, your TX-NR646 will likely drop