Firmware Updates

TX-NR636 / HT-RC660

Notice of Firmware Update for TX-NR636 / HT-RC660 / HT-S7700 / HT-S7705 / HT-S9700THX

A firmware update for the TX-NR636 / HT-RC660 / HT-S7700 / HT-S7705 / HT-S9700THX network A/V receiver and home theater system is available through the unit's USB input. The latest update includes the following content:

Latest Firmware Number (20 digits):2051-5110-2001-0602-0203

As of 1 December 2020

  • Improves the stability of USB playback.

As of 2 July 2019

  • Improve reception capability in certain TuneIn Radio stations.

As of 18 December 2018

  • Minor bug fixes and improvements stability.

As of 26 October 2017

  • Improvement of display when playback certain Dolby Digital Plus contents.
  • Improvement of stability when playback Dolby Atmos contents.

As of 30 September 2015

  • Fix connection issues with Deezer.
  • Improve Spotify Connect operation.
  • Improve audio output of DTS-HD Master Audio with a particular Blu-ray disc.

As of 02 April 2015

  • To Improve DLNA remote playback stability.
  • To improve the operation of Spotify Connect.
    *This particular firmware update is only available via USB installation.

As of 29 January 2015

  • To improve the operation of Spotify Connect

As of 4 November 2014

  • Adds support of Spotify Connect;
    *Please download the Spotify Music app from the iTunes or Google Play store prior to installing this update.
    *After installing this update, Spotify will no longer be able to be controlled through the receivers OSD menu.
    *All control of the Spotify service will be done through the Spotify Music app.

As of 29 September 2014

  • Adds support of Dolby Atmos;

As of 10 September 2014

  • Applies minor bug fixes;

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 20-digit number (xxxx-xxxx-xxxx-xxxx-xxxx). If any numbers differ from the latest version available, please update your unit.

Precautions for TX-NR636 / HT-RC660 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.
  • Depending on the conditions of the network, a firmware update via a network may take more than one hour or even fail to finish. If the update is not completed within two hours, turn off the power supply by pushing the ON/STANDBY button and then try updating again from the beginning.
  • 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 the LAN cable from a device in your network when updating over a network;
  • 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-NR636 / HT-RC660

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.