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Dell Wyse ThinOS Version 8.6 Administrator’s Guide

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Upgrade BIOS on the Wyse 5470 Thin Client

This section describes the procedure to update BIOS on the Wyse 5470 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 5470_bios.bin for Wyse 5470 Thin Client.

Ensure that the power adapter is connected to the thin client.

NOTE: To upgrade the BIOS on Wyse 5470 thin clients, you must connect the power adapter. You cannot upgrade the BIOS if the power adapter is not connected.

To upgrade BIOS using the file server:

  1. Download the Dell BIOS file from the respective hardware pages on Dell support site.
    For example, 5470_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.

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