Quick start guide

A quick and easy to use guide for operating your device.

User guide

A complete guide on how to use all of the features of your device.

  • Step 1 Download

    Download and install the Sena Device Manager on your computer.

  • Step 2 Update

    Update the firmware of your Sena product with the Sena Device Manager.

  • Step 3 Pair

    Reset your Sena product to the factory default setting (refer to the User’s Guide) and pair your Sena product with your Bluetooth device again.

  • Firmware History

    The supported firmware version of each product differs by manufactured date.
    Check if your device has the latest version with Sena Device Manager or Sena Apps.


    P/N : SF4-02, SF4-02D  |  Model : SP135-C

    v 3.2
    April 18, 2024

    • Minor bug fix with Music Sharing
    • Minor bug fix with multi-way intercom
    • Minor bug fix with Universal Intercom
    • Minor bug fix with phone calls
    • Minor bug fix with connecting a remote control in the Configuration menu
    • Minor bug fix with no sound being heard during a phone call using the Line app

    v 3.1
    August 1, 2023

    • Added the Sidetone feature
    • Added VOX Sensitivity setting
    • Added voice prompt languages for Czech, Polish, and Turkish
    • Added a call waiting feature
    • Added the Three-Way Conference Phone Call with Intercom Participant feature
    • Added tapping the Center Button once to cancel phone pairing when it is done automatically
    • Improved Audio Multitasking performance
    • Improved Music Sharing performance
    • Improved intercom overlay performance


    P/N : SF4-01, SF4-02, SF4-02D  |  Model : SP52-C

    v 1.1.5
    June 30, 2022

    • Improved iOS connectivity
    • Added support for the 2022 versions of RC3 and RC4


  • Sena Motorcycles App

    Customize a variety of settings on your Sena device with the Sena Motorcycles App. Configure channel settings for Open Mesh or set a private group for Group Mesh. Explore all-new soundscapes with the EQ presets and give the audio a boost. Connect your Sena headset to your phone in the Bluetooth settings menu and get the most out of your adventures.