BT-45C and the Headset of BT-45CS Firmware update tool Release Note (Ver1.2.1)

1. Introduction

This update application includes the firmware update application.
Update the firmware of BT-45C to V1.2.1 by executing this installer to install and then executing the firmware update application.

2. Target product

BT-45C and the Headset of BT-45CS before firmware version V1.0.0.
Check here for how to check the firmware version.

3. Release history

4. Advance preparation

Please prepare bellows.

• Target product: BT-45C (or Headset of BT-45CS)
• DisplayPort over USB Type-C compatible Windows computer (Windows10)
• Installer: BT-45C_UpdateTool_v121_Installer.msi

This update application includes the firmware update application.
Please download from "8. How to get".
Download it to any location and execute "BT-45C_UpdateTool_v121_Installer.msi"

After update firmware, it can be deleted form PC.
Also, the update application cannot be used on a PC without a monitor, so be sure to update on a PC with a monitor.

When execute installer, the following screen will be displayed.

Please check the License Agreement, and if you agree, click the check box.

If you agree and click the check box, the "Install" button will be enabled, so please install it.

After the installation is complete, click the "Finish" button to exit the installer.
When the installation is completed, the firmware update application
"C:¥Program Files (x86)¥EPSON BT-45C"
After update firmware, it can be deleted form PC.

5. Firmware update procedure

Procedure

1. Connect the plug of BT-45C to USB Type-C Port on Windows computer.

   

   * At first update, "Setting up a device" notice will be shown. The device driver will be installed automatically, but your PC must be connected to the Internet.
   Please wait for a while until "Device is ready" notice comes and then move to next procedure.

   

   * When using the update application, do not set the display to "Show only on 1".
   Check your display settings from Settings> System> Display> Multiple displays> Multiple displays.

   

2. Execute "BT-45C_UpdateTool_V1.2.1.exe" installed on the computer.^*1
   The firmware update application can also be executed from the start menu.

   

   When you run the application, the following window will be displayed on the screen, and when you press the "UPDATE" button, the update will start.^*2

   

   Firmware update takes around 1 minute.
   Caution: During firmware update, do not disconnect BT-45C from Windows computer. When disconnected, device might not operate correctly.

   *1 Please turn off the other applications before executing this update application.
   *2 If the BT-45C is not connected or the battery level is low for computer, the "UPDATE" button may disabled and the update may not be able to start.

3. When you see the following message, remove the BT-45C from computer and reconnect it to computer USB Type-C port.
   Caution: firmware update has not been completed yet.

   

4. When the firmware update is completed, the following dialog will be displayed.
   Click "OK" in the dialog and press the "EXIT" button to exit the update application.

   

   * If the error dialog is appeared, keep connect the windows computer and the BT-45C.
   Then back to Step 2.

5. Disconnect BT-45C from Windows computer.
   The firmware of BT-45C updated will active from next working.

6. How to check firmware version

Procedure

1. Connect the plug of BT-45C to USB Type-C Port on Windows computer.
2. Execute "BT-45C_UpdateTool_V1.2.1.exe" ^*1

The firmware version is indicated on the below dialog.

*1 Please turn off the other applications before executing this update application.

7. Troubleshooting

8. How to get

You can download the Firmware Update Tool after that you agree the Software License Agreement.