Smarth manual, app & firmware update — Cardo Systems


Sold from 2016 - 2018
User guide
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Firmware update
Version: 5.2
Release date: April 23, 2019
Release notes

Firmware upgrade (version 5.2) release notes:

  • If you are using an Android mobile phone and the Spotify digital music App, you may have experienced some issues playing or stopping your music. We wanted to let you know that we have fixed this issue, so you can go back to enjoying your music while you ride.


Firmware upgrade (versions 5.1) release notes:

  • To all the lucky riders who love their sound quality and have decided to purchase the 45mm Audio Set, Sound by JBL you can now activate the JBL experience using the Cardo Connect App. Enjoy your new speakers!
  • Bug fixes in music playing via a few models of mobile devices, so that everyone could enjoy the best audio quality, listening to their music.
  • Did you ever get to change the system announce volume by mistake on standby mode? That was a bit confusing, right? We decided to cancel that option to avoid confusion. You can easily change the system volume settings, by simply using the “Cardo Connect” App.
  • You can now easily choose your language, using the “Cardo Connect” App. No need to use the community or choose regions anymore.
  • Our Unit will now be politer to our Japanese riders and will say “Sayonara,” rather than “goodbye.”
  • Like always, some more bug fixes that will make your riding experience even better.

Cardo Community page used for the Software update is currently not compatible with Safari browser.
Please use one of these supported browsers; Chrome, FireFox, and Edge browsers are supported.

Software Update v4.2

  • Version 4.2 enables to take full advantage of motorcycle infotainment systems and GPS devices.*

This new feature will allow you to use your bike’s infotainment system (Such as BMW’s TFT and similar systems) or a 3rd party GPS device, as a connecting platform between the phone and your Cardo unit.

*Actual performance may differ from system to system

  • Improved phone call sound quality for iOS devices with version 11.2.5 and up.
  • Minor Bug fixes

Software Update v4.0

New added features and usability:
  • Simplified button operation
  • The ability to use the NEW Cardo Connect App (iOS / Android)
  • Maximum number of DMC group members increased from 4 to 15
  • DMC bridge for connection of non-DMC units to the DMC group added
  • DMC private chat for having one-on-one conversations within the group added
  • Major bug fixes
  • Improved operability
  • Support for future upgrades


By upgrading the following functions will not be available anymore:
  • Current button operation
  • The ability to use the existing SmartSet / SMARTH app (iOS / Android)
  • Click-to-link
  • 1+8 intercom toggle
  • Voice menus
  • Music scan
  • FM auto tuning
Mobile applications
Cardo Connect

Watch. Learn. Ride.

cardo SMARTH communication system - Designed for HJC helmets with DMC technology
cardo SMARTH communication system - Designed for HJC helmets with DMC technology
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