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If you’ve searched for , you’re likely experiencing one of three things: HDMI handshake issues with a new 4K or 8K source, eARC glitches with your smart TV, or simply a desire to unlock the latest features and stability patches.
The receiver shut itself off.
You can verify your current version by:
Updating the firmware on your Onkyo TX-SR393 can bring a range of benefits, including: onkyo firmware update tx-sr393