Administrator Guide

Table Of Contents
Firmware installation using Dell Wyse USB Imaging
Tool
Use the Dell Wyse USB Imaging Tool version 3.4.0 to install the ThinOS 9.1 Merlin image on your thin client. For information
about installation instructions, see the Dell Wyse USB Imaging Tool version 3.4.0 User's Guide.
Upgrade BIOS
Prerequisites
Ensure that you have downloaded the BIOS file from Dell.com/support to your device.
Ensure that you have registered the thin client to Wyse Management Suite, if you are upgrading BIOS using Wyse
Management Suite.
Steps
1. Open the Admin Policy Tool on the thin client or go to the ThinOS 9.x policy settings on Wyse Management Suite.
2. On the Configuration Control | ThinOS window, click the Advanced tab.
3. Expand Firmware and click BIOS Firmware Updates.
4. Click Browse and select the BIOS file to upload.
5. From the Select the ThinOS BIOS to deploy drop-down list, select the BIOS file that you have uploaded.
6. Click Save & Publish.
The thin client restarts. BIOS is upgraded on your device.
NOTE:
When you use the BIOS upgrade feature for the first time, the BIOS is downloaded even if the existing BIOS
version is the same version that is uploaded.
If you are upgrading BIOS on the Wyse 5470 Thin Client, ensure that you have connected the device to the external power
source using the power adapter. If you do not connect the power adapter, BIOS update fails. In this event, you cannot
upgrade BIOS even after you connect the power adapter. As a workaround, do the following:
a. Install a different version of the BIOS.
NOTE:
A different version of the BIOS package may also fail to install. But, the installation status does not matter.
You can continue to the next step regardless of the result.
b. Connect the device to the external power source using the power adapter.
c. Upgrade BIOS to the latest version.
Edit BIOS settings
Prerequisites
If you are using Wyse Management Suite, ensure that you have registered the thin client and synchronize the BIOS admin
password. For more information about using the Sync BIOS Admin Password option, see the Dell Wyse Management Suite
v2.1 Administrator's Guide at www.dell.com/support.
If you are using the Admin Policy Tool, ensure that you enter the current BIOS admin password in the Advanced > BIOS
section.
Steps
1. Open the Admin Policy Tool on the thin client or go to the ThinOS 9.x policy settings on Wyse Management Suite.
2. In the Configuration Control | ThinOS window, click the Advanced tab.
3. Expand BIOS and select your preferred platform.
4. In the System Configuration section, modify the USB ports and audio settings.
5. In the Security section, modify the administrator-related configurations.
6. In the Secure Boot section, enable the secure boot option. If enabled, you cannot disable it using Admin Policy Tool or Wyse
Management Suite. Secure Boot can be disabled only in the BIOS setup window.
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Upgrading the ThinOS firmware