Administrator Guide

Upgrade BIOS on the Wyse 5470 All-in-One Thin Client

This section describes the procedure to update BIOS on the Wyse 5470 All-in-One Thin Client by using file server. The Dell

Standard BIOS file is converted to BIN file format for signature and security purposes. The format of the BIN file is

5470AIO_bios.bin for the Wyse 5470 All-in-One Thin Client.

To upgrade BIOS using the file server:

1. Download the Dell BIOS file from the respective hardware pages on Dell support site.

For example, 5470AIO_bios.bin. The BIOS version may be updated in each release. For the latest version of BIOS, see

the latest Dell Wyse ThinOS Release Notes.

2. Upload the BIOS file to folder WNOS in the https server.

3. Ensure that the INI parameter autoload is enabled for firmware update in WNOS.INI.

4. Restart the thin client.

The BIOS is updated automatically.

To verify whether the new BIOS is updated correctly, from the desktop menu, click the System Information option, or click

the System Information icon in zero mode. In the Event Log tab, the BIOS version log is displayed.

BIOS version can be viewed on the BIOS setup screen. To access the BIOS setup, do the following:

1. Restart the thin client, and during system boot, press the F2 key.

2. Enter the BIOS password, if admin password is set.

3. Click Settings > General > System Information.

The BIOS version is displayed on the screen.

BIOS can also be updated by using the Wyse Management Suite console. For more information about Wyse Management Suite,

see Dell Wyse Management Suite Administrator's Guide.

System configuration and deployment

● USB redirection must be disabled for audio and video devices to use RTME, RTAV, SFB, and JVDI. By default, the USB

redirection is disabled on ThinOS. Dell recommends that you do not modify the default settings unless you need the USB

redirection for audio and video devices.

● ThinOS BIOS policy can be configured using Wyse Management Suite Console, Wyse Management Suite group INI, and Wyse

Management Suite advanced settings. Dell recommends that you use any one of the methods to configure the BIOS policy.

Setting the BIOS policy simultaneously using different methods may cause a policy mismatch, and the device reboots

repeatedly. This reboot loop issue is observed when you select the reboot immediately option in the BIOS policy settings

section on the Wyse Management Suite console.

● All the installed packages are deleted when you update the ThinOS image version between major releases using WDM or

Wyse Management Suite.

Solution for updating firmware using WDM—Ensure that you have set the PKG install parameters in the WNOS.ini, and

the pkg files are uploaded in the directory. After the device reboot, the packages are re-installed automatically.

Solution for updating firmware using Wyse Management Suite—Wyse Management Suite App policy works only once

after the policy is created. The deleted package cannot be reinstalled using the same policy. Dell recommends that you

create a new App policy to install the package after the firmware update is complete.

● WDM vulnerability is fixed in this release. You must configure either the DHCP or the DNS option/record of the WDM server

fingerprint to automatically fetch and validate the fingerprint before checking in to the WDM server. However, there is no

impact to the ThinOS device functionality if you do not to configure the fingerprint validation environment. For more

information about how to set up fingerprint using WDM, see How to set up WDM fingerprint using Wyse Device Manager.

● Boot up unit without monitor or with monitor power-off.

○ Wyse 5010 thin client, Wyse 5040 thin client, and Wyse 7010 thin client—If the thin client waits for 15 to 20 seconds and

the monitor is attached or powered on within 20 seconds, the display is turned on. If the monitor is attached or powered

on after 20 seconds, the monitor displays the black screen. Turn on the monitor first, and then turn on the thin client.

○ Wyse 3040 thin client and Wyse 5060 thin client: The client waits until the monitor is attached or turned on.

Before working on ThinOS