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Dell ThinOS 9.4 and WMS Updates are Now available for Download

Dell ThinOS 2303 (9.4.1141) and related packages release Friday, March 31st, and are available for download at

https://www.dell.com/support/home/en-us/product-support/product/wyse-wms/drivers

I have tested upgrades on 3000, 5470, 5470 AIO, 5070, and 3040. All were upgraded without issues except the 3040. When upgrading the 3040 best practice is to remove Zoom Packages before upgrading Firmware, not doing so may result in the system not updating and attempting the upgrade again.

First, make sure to read the release notes, https://dl.dell.com/content/manual63938549-dell-wyse-thinos-2303-2211-2208-and-2205-release-notes.pdf?language=en-us

Firmware upgrade

  • The following firmware upgrade scenarios are supported:
  • 9.1.3129 or later versions > ThinOS 2303 (9.4.1141)
  • NOTE: If your current version is earlier than 9.1.3129, you cannot upgrade to ThinOS 2303. You must upgrade to ThinOS 9.1.3129 or later versions before upgrading to the latest version of ThinOS 9.x.

NOTE: If you want to downgrade ThinOS 2303 to a version earlier than 9.1.3129, you must use ThinOS Merlin image.

Important notes
To further improve the security of ThinOS devices, TLS 1.0 and 1.1 have been removed in ThinOS 2303. If your network or VDI environments still require TLS 1.0 or 1.1, use ThinOS 2211 or earlier versions until you have updated your environment.

  • If you get the error Could not add account. Please check your account and try again. when logging in to Citrix or Login failed! when logging in to VMware, check whether TLS 1.0 or TLS 1.1 is required by your Citrix or VMware Broker agent to log in.
  • If you get a wired IEEE802.1x authentication or wireless authentication failure, check whether your network environments require TLS 1.0 or 1.1.
  • It is recommended to change the default BIOS password to increase the security posture of your devices.
  • There are chances that after the upgrade, the device displays a black screen. You may reboot the device to boot it up correctly.
  • From ThinOS 2303, if the thin client is registered in Wyse Management Suite group 1 and you set the Wyse Management Suite group 2 token in the group 1 policy, a dialog box is displayed to change the group. Click Cancel to change to group 2 immediately. Click Restart Now or wait for the 60-second countdown to finish and then reboot to change to group 2.
  • If the Live Update option is disabled, the thin client cannot download and install any firmware or package until the next reboot. However, the firmware or packages are downloaded in the following scenarios even when the Live Update option is disabled:
    • When you power on the thin client from a power-off state.
    • When you change the Wyse Management Suite group.
  • If the Live Update option is disabled, the thin client cannot download and install any firmware or package until the next reboot. However, the firmware or packages are downloaded in the following scenarios even when the Live Update option is disabled:
    • When you register the thin client to Wyse Management Suite manually.
    • When you power on the thin client from a power-off state.
    • When you change the Wyse Management Suite group.
  • When a new firmware or an application notification is displayed on your thin client, clicking Next Reboot will:
    • Not display a notification if you have changed the Wyse Management Suite group and if the files are downloaded from the new group.
    • Not display any notification if the new firmware or application is downloaded in the same group.
    • Installs the firmware or package after a reboot.
  • If you have installed the HID_Fingerprint_Reader package, ensure that you have also installed the Citrix_Workspace_App package, or you cannot upgrade to ThinOS version 2303.
  • If you configure settings, like brokers, locally in ThinOS 2303 and downgrade to ThinOS 2205 or earlier versions using Wyse Management Suite, the settings are lost.
  • If you downgrade to ThinOS 2205 or earlier versions using Wyse Management Suite, reboot the system manually again to set a password locally in ThinOS. Otherwise, passwords, like the broker login password, get corrupted when rebooting for the first time after downgrading.

● Prerequisites for firmware upgrade

Before you upgrade from ThinOS 9.1.x to ThinOS 2303, power on the system and disable the sleep mode. If the system has entered sleep mode, you must send the Wake On LAN command through Wyse Management Suite before using any real-time commands. To use the Wake On LAN command, ensure that the Wake On LAN option is enabled in BIOS.

ConfigUI v1.9.728 release for ThinOS 2303 which will add new configuration options,

  • Updated TLS Controls
  • Granular Control of Troubleshooting in Account Privileges
  • BIOS Settings for the new OptiPlex and Latitude platforms
  • Deep Sleep Control
  • SCEP Certificate Auto Renew Time Frame
  • Enable RDS NLA
  • AVD Microsoft Teams Optimization
  • Multi-Broker options
  • Maximum Retries for Downloading Files and The Interval Time for Each Retry
  • And many more settings

Customers using the on-prem version can download ConfigUI v1.9.728 release for ThinOS 2303 from the link below on Sunday, April 2, 2023

https://www.dell.com/support/home/en-us/product-support/product/wyse-wms/drivers