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:

  • STR-DA5500ES

About this download

Benefits and improvements

This utility updates the firmware to version 1.033 and provides the following benefits:

Improvements over firmware version 1.032:

  • Improves audio decoding for Blu-ray Disc™ media

Benefits provided by previous updates and included in version 1.033:

  • Provides support for the Rhapsody® music service security certificate server update
  • Provides support for the SHOUTcast® Internet radio interface update

System Requirements

Operating Systems

  • Windows Vista®
  • Windows Vista® 64-bit
  • Windows® XP
  • Windows® XP MCE

File Info

File Name

  • A55U_1033.zip

File Version

  • 1.033

File Size

  • 15.58 MB

Release Date

  • 11-03-2011

Download & Install

Required Equipment

Firmware Download and Installation Instructions

  1. WARNING!! Do not power off the receiver or disconnect the network cable during the firmware update process. Doing so may cause may cause a malfunction.
  2. To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
  3. Download the A55U_1033.zip file to a temporary or download directory (please note this directory for reference).
  4. Connect the receiver to your network using a network LAN cable.
  5. Ensure the receiver is connected to the TV.
  6. Power on the receiver and wait 30-50 seconds for the U-com communication.
  7. On the remote commander, press the "GUI MODE" button to show "GUI MODE ON" in the display window.
  8. Ensure the TV is powered on. The menu is displayed on the TV screen.

    Note: If your receiver has already been configured to connect with your home network, please skip to step 13.
  9. On the remote commander, use the up/down arrow () buttons to select Settings, Network, Network Setup.

    Network Setup selection
  10. At the "Network Setup" menu, select Internet Setup.

    Internet Setup selection
  11. At the "Internet Setup" screen, select Connect Automatically(DHCP).

    Network Settings DHCP selection
    The message "Connecting... Please wait." may appear.
  12. When the receiver has successfully connected to the network, select "Finish" and press the enter () button.
  13. On the remote commander, use the up/down arrow () buttons to select Settings, System, System Update.

    Settings Setup selection
  14. At the "Select the update service" menu, select "PC update" and press the enter () button.
  15. At the "Are you sure you want to update the firmware?" message, select "Start".
  16. After 15 seconds, the "PC update" window will appear.
    • IMPORTANT: Do not power off the receiver or disconnect the network cable during the firmware update process. Doing so may cause may cause a malfunction.
    • It may take 30 minutes to complete the update.
  17. On the computer, double-click the ES Utility icon.
  18. At the "ES Utility - Select AV Receiver" screen, double-click the icon for your receiver.
  19. At the "ES Utility" screen, move the scroll bar on the left to select "System".
  20. At the "System Settings" screen, to the right of "File Path", click "Browse" to locate the A55U_1033.zip file.
  21. Click "Start Update".
  22. At the "Start Update" screen, click "Yes" to start the update process. This update takes 15-30 minutes to complete.
    Note: The MULTI CHANNEL DECODING lamp on the front panel of the receiver flashes while the update is in progress. The flashing will disappear after the update is complete.
  23. After the update completes, click "Exit".
  24. Power off the receiver and disconnect from the computer.

The firmware software update is complete.

  1. On the remote commander, press the "GUI MODE" button to display "GUI MODE OFF" in the display window of the receiver.
  2. On the remote commander, press the "MENU" button, then press the up/down arrow () buttons to select "System Settings", and then press the enter () button.
  3. Use the up/down arrow () buttons to select "VERSION x.xxx". This will display the current version information for the receiver.

Questions & Answers