Sony Support

System Software Update

    Applicable Models
    About this download
    System Requirements
    Preparation

    IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

    This information is for the following models:

    • KDL-32BX320
    • KDL-32BX321
    • KDL-32BX420
    • KDL-32BX421
    • KDL-40BX420
    • KDL-40BX421

    About this download

    Benefits and improvements

    Sony has designed the BRAVIA® Televisions software update process to be customer friendly. This software update provides an increase in the maximum number of channel presets for some regional broadcasters.

    System Requirements

    Operating Systems

    • System Software

    Before You Start


    Check the Serial Number

    To determine the proper update for your television, please enter the 7-digit serial number found on the side or back of the television.

    Please enter the serial number without any spaces, and then click "Continue".