About this download

Benefits and improvements

• Adds support for Chromecast built-in for Audio v1.56
  • Improves Chromecast built-in connectivity
• Fixes other minor issues

Previous Benefits and Improvements

View previous benefits and improvements

File Info

File Name

• Firmware update version 2.375 for HT-Z9F

File Version

• 2.375

File Size

• 209 MB (220 176 780 bytes)

Release Date

• 28-02-2023

Preparation

Check the firmware version

Your firmware may already be up to date, especially if you have a new Sound Bar. If the version number is 2.375 or higher, you do not need to update.

If you're not sure, it's easy to check which version of firmware you have:

1. Turn on your TV and make sure that it's tuned to the input your Sound Bar is connected to, so if the Sound Bar is connected to the HDMI2 socket, choose HDMI2 as the input.
2. Turn on the Sound Bar.
3. Press HOME on the remote control and wait until you see the HOME screen.
4. On the home screen, select Setup → Advanced Settings with the arrow keys on the remote control and then press ENTER.
5. Select System Settings → System Information with the arrow keys on the remote control and then press ENTER.
6. On the TV screen, if the version number is 002.375 or higher (the 1st and 2nd zeros of the software version number can be ignored), you already have the most recent firmware version.

Important Notice

• Read the instructions carefully or you may damage your HT-Z9F.
• Do not turn off the HT-Z9F or disconnect it from AC power while it is updating.
• Do not press any buttons, except the ones mentioned in the instructions.
• Do not pull out the power cord or network (LAN) cable while the software is downloading and updating. It may cause the system to fail.

There are two easy ways to update the firmware:

Method	What you need	Why use this method?
Internet/network (RECOMMENDED)	An Ethernet cable to connect your sound bar to the internet Make sure your sound bar is connected to: an active Internet connection a compatible TV	We recommend this method as it's the easiest and quickest way to update your firmware.
USB storage device	a computer a USB storage device	Update your firmware this way if you can't connect over the Internet.

Download & Install

Updating via the Internet

We recommend this method as it's the simplest way to update. It usually takes about 15–30 minutes. First set up the equipment, then download the update from the Internet.

What you need:

• An Ethernet cable to connect your sound bar to the internet
• Make sure your sound bar is connected to:
  • an active internet connection (using an Ethernet cable or wireless router)
  • a compatible TV

Set up the equipment:

1. Turn on your TV and check that the input your Sound Bar is connected to has been selected. (So if the Sound Bar is connected to the HDMI2 port, choose HDMI2 as the input)
2. Connect the Sound Bar to your internet source using a wireless router.
3. Turn on the Sound Bar.
4. On the remote control, press HOME and wait until you see the HOME screen.

Step 1: Install the update

1. At the HOME menu, use the arrow keys on the remote control to select Setup → Advanced Settings → Software Update → Network update, and then press ENTER.
2. When the message Update to a new software version. Never turn off the power while performing the update. Current version 00x.xxx New version 002.375 is displayed on the TV screen, select OK using the remote control and then press ENTER.
3. The message Update Caution is displayed on the TV screen. Select OK using the remote control and then press ENTER.
4. The Sound Bar downloads the firmware data from the Internet.
5. After downloading, the Sound Bar restarts and the main unit update starts. While the main unit is updating, the update progress status XX% is displayed on the front panel display.
6. Once the main unit is updated, the Sound Bar will automatically restart again. If required, the update for the subwoofer or rear speakers then starts.
7. The update is complete when the finish message appears on the TV.

Step 2: Confirm that the update was successful

Check the firmware version. If the version number is 2.375, the firmware update was successful.

Troubleshooting

What to do if you have problems updating your Sound Bar firmware using the internet.

• The message The device is not connected to network. To update, your Sound Bar needs to be connected to the Internet. is displayed on the TV screen. If you cannot perform the Update via Internet, try the Update via USB Memory procedure.
  1. Make sure the router and all devices connected between the Sound Bar and the router are switched on.
  2. Make sure all the cables between the Sound Bar and the router are correctly connected.
  3. Try the update procedure again.
• After the Update via Internet procedure has started, the message Download capacity: xxxxxxKB/xxxxxKB and xx% is display in TV screen is displayed but the progress bar on the display has not changed.
  Depending on the network connection, the Update via Internet procedure can take a long time (up to 60 minutes). That is why the message Download capacity: xxxxxxKB/xxxxxKB and xx% is display in TV screen is displayed and the progress bar on the display will not change for a long time.
• When running the Update via Internet procedure, the TV displays the message, Connection status cannot be confirmed. Cannot communicate with the server. Please try again later. and you cannot perform the firmware upgrade.
  1. Check that the LAN cable is connected.
  2. Make sure you have confirmed whether or not your Sound Bar has its own IP address in the network settings. (If you use a proxy server, type the IP address of the proxy you use into the Proxy Server field instead of the proxy hostname.)
  3. Try the update again.
• The power went off while the update was in progress.
  Turn the Sound Bar on and try the update again.
• The update has been going on for over 60 minutes and hasn't finished.
  If the sound bar is connected to the network wirelessly, please try to connect to the network with a cable and try the procedure again.
  If the problem continues, the network transmission speed may be low. In that case, update your system following the Update via USB Memory procedure.
• The message Already Updated is displayed on the TV screen.
  The firmware version currently installed on the Sound Bar is the latest version

Update via USB Memory Device and your PC

We recommend you use the Internet to update if you can. If not, you can use this method instead. You'll download the update to your computer, transfer it to a USB memory device, then transfer it to your HT-Z9F.

Preparations for Firmware Update

Before downloading the firmware, please ensure that your computer is running one of the following operating systems and prepare a USB flash drive.

Operating Systems

• Windows 11
• Windows 10
• Mac OS X

Step 1: Install the update

1. Read and agree to the terms and conditions.
2. Download the file Z9HT2-2_375.zip to your computer, making sure to remember the directory.
3. Find the file on your computer, right-click it, and click Properties. Check the size is 209 MB (220 176 780 bytes).

Transfer the files to the USB storage device:

1. Extract the update file from the Z9HT2-2_375.zip file.
   • For Mac OS X operating system:
     1. Go to the location where the file was downloaded and double-click the Z9HT2-2_375.zip file.
     2. A new file will be created called F_Z9HT2.UPG.
   • For Microsoft Windows operating system:
     1. Go to the directory where the file was downloaded and right-click the Z9HT2-2_375.zip file, and then click Extract All.
        Note: For Windows, the default settings for Microsoft Edge will save the file in the Downloads folder. To locate the Downloads folder, click the Desktop tile from the Start screen and then locate the downloaded file using Windows Explorer.
     2. At the Extract Compressed (Zipped) Folders window, click Extract.
     3. A new file will be created called F_Z9HT2.UPG.
2. Connect a compatible USB storage device to your computer.
3. Transfer the F_Z9HT2.UPG file to the USB storage device:
   • For Mac OS X operating systems: Drag and drop the F_Z9HT2.UPG file to the root folder of the USB device.
   • For Windows operating systems:
     1. Go to the directory where the folder was created, and then right-click the F_Z9HT2.UPG file.
     2. From the menu, click Send To..., and then click the drive that represents your USB device (e.g. Removable Disk E:).
     3. The F_Z9HT2.UPG file will be copied onto your USB device.
   Note: The update will not be performed if the folder is not copied to the root directory of the USB device or if the name of the folder is modified.
4. After copying the F_Z9HT2.UPG file, remove the USB device from your computer

Transfer the update to your HT-Z9F

First, get the equipment ready, then transfer the update to your HT-Z9F.

Get the equipment ready:

1. Turn on your TV and check it is tuned to the input your Sound Bar is connected to. (So if the Sound Bar is connected to the HDMI2 port, choose HDMI2 as the input).
2. Turn on the Sound Bar.
3. Press HOME on the remote control and wait until you see the HOME screen.
4. Insert the USB that contains the F_Z9HT2.UPG file.

Transfer the update:

1. At the HOME screen, using the arrow keys on the remote control, select Setup → Advanced Settings → Software Update → USB update, and then press ENTER.
2. When the message Update to a new software version. Never turn off power while performing the update. Current version xxx.xxx New version 002.375 is displayed on the TV screen, select OK using the remote control and then press ENTER.
3. When the message Update Caution is displayed on the TV screen, select OK using the remote control and press ENTER.
4. The Sound Bar downloads the firmware data from the USB memory device.
5. After downloading, the Sound Bar restarts and the main unit update starts. While the main unit is updating, the update progress status XX% is displayed on the front panel display.
6. Once the main unit is updated, the Sound Bar will automatically restart again. If required, the update for the subwoofer or rear speakers then starts.
7. The update is complete when the finish message appears on the TV.

Step 2: Confirm that the update was successful

Check the firmware version. If the version number is 2.375, the firmware update was successful

Troubleshooting

What to do if you have problems updating your Sound Bar firmware using your PC and a USB Memory.

• A UPDT and ERROR are displayed alternately on the front panel display.
  1. Turn off the system and disconnect the AC power cord.
  2. Turn on the power of the Sound Bar.
  3. Try the Update via USB Memory procedure again.
• The power went off while the update was in progress
  Turn on the Sound Bar and follow the Update via USB Memory procedure again.
• The Z9HT2-2_375.zip update file I downloaded from the website cannot be extracted.
  Did you download the file successfully? Delete the file and download it again.
• The update has been going on for over 60 minutes and hasn't finished.
  1. Disconnect the AC power cord from the mains, then reconnect it after several minutes.
  2. Turn on the Sound Bar.
  3. Try the update procedure again.