Administrator Guide

Table Of Contents
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.
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 Power Management section, modify the power-saving options.
7. In the POST Behavior section, enable or disable the MAC Address Pass-Through feature. This option is applicable only to
the Wyse 5470 Thin Client.
8. Click Save & Publish
NOTE:
If the thin client does not have a BIOS admin password, you can set the password using Admin Policy Tool or
Wyse Management Suite. In this scenario, the client reboots first to apply the BIOS admin password and other BIOS
settings take effect after the second reboot.
Downgrade to ThinOS 9.0.1136 by using Wyse
Management Suite
Prerequisites
Ensure that you have upgraded to the version newer than ThinOS v9.0.1136.
Ensure that your thin client is registered to Wyse Management Suite v2.1.
Ensure that you have created a group in Wyse Management Suite with a group token.
Ensure that you have downloaded the ThinOS v9.0.1136 base image firmware from www.dell.com/support.
Steps
1. Log in to Wyse Management Suite.
2. Go to the Groups & Configs page, and select your preferred group.
3. From the Edit Policies drop-down menu, click ThinOS 9.x.
The Configuration Control | ThinOS window is displayed.
4. In the left pane, click Advanced.
5. From the Advanced menu, expand Firmware, and click OS Firmware Updates.
6. Click Browse and select the ThinOS firmware to upload.
7. From the Select the ThinOS Firmware to deploy drop-down menu, select the uploaded firmware.
8. Click Save & Publish.
Wait for the thin client to display a message for firmware downgrade. The thin client starts downloading the firmware.
NOTE: You cannot downgrade from ThinOS 9.0 MR1 to ThinOS 8.6.
20 Upgrading the ThinOS firmware