Applicable Models

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:

  • SRS-ZR5

About this download

Benefits and improvements

Improvements over version 4.01:

  • IMPORTANT: This firmware update must be performed to keep using the Chromecast built-in music distribution service. If you do not manually install the update, it will be automatically installed when there is an active network connection and the speaker is not in use
  • Improves secure communication (WPA2)

Benefits provided by previous updates and included in this update version.

System Requirements

Operating Systems

  • System Software

File Info

File Name

  • SRS16003.UPG (v5.03)

File Version

  • 5.03

File Size

  • 143.13 MB

Release Date

  • 02-26-2018

Before You Start


Before You Start

  • Follow the update instructions carefully.
  • Your Personal Audio System needs to be connected to an active Internet (network) connection, either via Wi-Fi, using the SONY | Music Center (SongPal) app on your smartphone, or directly to your active Internet source with a LAN cable.
  • WARNING!
    • Do not operate, turn off, or disconnect the Personal Audio System from the AC power outlet until after the update is complete.
    • Failure to follow the instructions, or an interruption in the update process, may cause the Personal Audio System to become unresponsive or to require repair.

Download & Install


Installation Instructions

Determine if you need this update
Check the Firmware Version
Choose how to install this update
OPTION 1 - Update via Internet Method (Recommended)

The Update via Internet Method is straightforward and the easiest way to update your Personal Audio System.

Update via Internet Instructions
OPTION 2 - USB Storage Device (USB) Update Method

With this method, you use a computer to download the firmware upgrade to USB storage device, and then install it from the USB storage device onto your Personal Audio System. You'll need a USB storage device with 256MB space available.

USB Storage Device (USB) Update Instructions