Firmware Updates

TX-SR494

Notice of Firmware Update for TX-SR494

A firmware update for the TX-SR494 network A/V receiver is available through the unit's USB input. The latest update includes the following content:

Latest Firmware Number (16 digits):R107-0300-1120-0000

As of 29 May 2019

As of 26 Mar 2019

  • Add setting to switch ''Standard'' and ''Enhanced'' according to HDMI 4K signal format.
  • For detail about updated function, please refer to the link below.

    http://www.onkyo.com/manual/txsr393/supple_393.pdf

  • Minor bug fixes and improvements stability.

How to Check if Your Firmware Version is Up To Date

To Check if your firmware is up to date, go into Home Menu ->Firmware Update and check the 16-digit number (xxxx-xxxx-xxxx-xxxx). If any numbers differ from the latest version available, please update your unit.

Precautions for TX-SR494 Firmware Update

  • Please read the update instructions carefully before beginning.
  • The firmware update should take 30 to 40 minutes. Once the update begins, don't turn off the power supply to the A/V receiver until it is time to restart it.
  • Updating the firmware and adjusting the settings will be done automatically, but may take some time to complete. Please follow the procedures as instructed when you update. Note that the update may fail, or cause problems for your A/V receiver, if you do any of the following:
  • Pull out the A/V receiver's power cord;
  • Interrupt the power supply to the A/V receiver (e.g. if the breaker is tripped or if there is an electrical outage);
  • Insert or remove a USB memory device from the A/V receiver when updating via USB;
  • Operate components connected to the A/V receiver via HDMI, such as a TV or a recording device.

If your A/V receiver is damaged for any of the reasons above, an Onkyo service center will repair the unit for a fee.

How to Install Firmware Update for TX-SR494

Click below for instructions on how to install the update.

Click below to download the firmware update to your PC, for subsequent installation on your receiver via its USB port.

Please click here for the details about Open Source Software.