Important
As of May 2025, Logitech has shutdown the service and database (aka members.harmonyremote.com) that generated the configuration "blobs" require for cocordance to update the configuration of Harmony remote controls that Concordance would otherwise support.
Unfortunately, this significantly limits the usefulness of Concordance, as it can no longer make changes to the remotes it would otherwise support.
However, one thing it can still do is backup the configuration of any existing remote control, and in the event of a failure, restore that config to a similar remote. As such, we highly recommend you use generate a backup via:
concordance -c <filename> -w
And store it in a safe place.
Thanks to all of our users and contributors over the years, it's been a blast. We will continue to keep an eye on this repo and accept PRs that support the remaining functionality.
This software allows you to program your Logitech Harmony remote using a configuration object retrieved from the harmony website
The website is required. The website is required in Logitech's software as well, it's just that their software wraps the website. Their website has all the logic on what codes work with what remotes and what hardware, etc. The software just takes the binary blobs that the website makes and writes it to the remote control. This is true for both Logitech's software and this software.
However, this software has some extra functionality such as being able to dump (backup) your existing config, being cross-platform, and giving you extra visibility into what's actually happening with your remote.
NOTE: the Logitech web server now is setting a header 'X-Frame-Options: DENY' which prevents the update process from working correctly with Concordance. In order to work around this, you will have to use a web browser that ignores this header. For Firefox, the 'Ignore X-Frame-Options Header' Add-on has been used successfully. For other browsers, there may be similar add-ons available.
Concordance is packaged in a wide variety of Linux distributions and other OS package repositories. The easiest path is to use such a package if it's available for your OS/distro.
If it's not packaged for your OS/distro, then refer to the appropriate INSTALL file in this repository for your OS.
NOTE TO MAC USERS: You need to use 'sudo' since you don't have udev.
NOTE TO LINUX USERS: This assumes you have proper udev support setup (see the INSTALL.Linux file in the libconcord source). If not, you'll need to use sudo or be root.
- I got a file from the website, do something useful with it.
concordance <filename>
This will attempt to figure out what to do, and do it. Note that the update process sends TWO files: a connectivity test and the update. You will need to do both.
- Backup the config
concordance --dump-config=/tmp/config.EZHex
This will read the config off of your remote and write it to /tmp/config.EZHex. It's a good tool for development as well as backing up your config. This can however be created from the members.harmonyremote.com/EasyZapper website. The equals is needed if you pass in a filename since the filename is optional. If you don't specify, concordance will use 'config.EZHex' in the current directory.
- Connectivity test
Go to members.harmonyremote.com/EasyZapper, and when you're ready, choose "Update My Remote." Before Logitech provides an actual config, they will first attempt to do a connectivity test. Downloaded the Connectivity.EZHex file, and then run the test:
concordance Connectivity.EZHex
If that doesn't work, you can tell concordance what it is manually:
concordance --connectivity-test Connectivity.EZHex
- Write a config
Once the connectivity test is successfully completed, the site will prompt you to download the actual config in a file called Update.EZHex. Save it and then you can use it with:
concordance Update.EZHex
Again, concordance should do the right thing here, but in case of problems you can explicitly tell concordance what to do with:
concordance --write-config Update.EZHex
- Backup the firmware
Sometimes the site will want to update your firmware. Concordance allows you to backup your old firmware so you may later revert if you prefer. You can do this with:
concordance --dump-firmware
This will read the firmware off of your remote and write it to fimrware.EZHex. See "1. Backup the config" for more information.
- Write firmware
NOTE: This feature is only implemented for certain models. Please see supported models
However for models we support this on, it works like this:
concordance Firmware.EZHex
Again, if you have a problem, you can tell concordance what to do explicitly:
concordance --write-firmware Firmware.EZHex
There are other options - check out the --help one!
- Congruity is a cross-platform graphical front-end for libconcord written in python
THIS SOFTWARE IS NOT SUPPORTED BY OR IN ANY WAY RELATED TO LOGITECH!