Important notes
- Ensure that the Wyse 5070 BIOS version is 1.3.1 or later before upgrading to ThinOS 9.1. If you upgrade to ThinOS 9.1 with earlier BIOS version and then upgrade the BIOS version to 1.3.1 or later, the device may fail to boot.
- Before migrate from ThinOS 8.x to ThinOS 9.x or upgrade from ThinOS 9.x to later versions, ensure that your system is powered on and the sleep mode is disabled on the system. If the system has entered the sleep mode, you must send the WOL command through Wyse Management Suite before using any real-time commands. To use the WOL command, ensure that the Wake-On-LAN (WOL) option is enabled in BIOS.
- The upgrade to 9.1.3112 image is a complete installation process and takes longer time. All application packages are cleared after the upgrade.
- Installation fails even though the image download is complete. This issue is observed when the package settings are changed in the device group before the device is checked in to Wyse Management Suite from shut down state.
- After upgrade, install the Citrix Workspace app package first, and then reinstall the Citrix-related application packages. Example: HID, Cisco WebEx Meeting.
- There are chances that the upgrade might fail with event log stating Failed to install. In such an event, you may reboot the device and upgrade again.
- There are chances that after the upgrade the device displays a black screen. You may reboot the device to boot it up correctly.
- When you upgrade from previous version of ThinOS 9.x to 9.1.3112, the thin client downloads all the application packages that are applicable to 9.1.3112. After you upgrade to 9.1.3112, all the application packages are removed and you must reinstall the application packages. Dell Technologies recommends you to upgrade from previous version of ThinOS 9.x to 9.1.3112 without installing the application packages. If you add multiple application packages along with the operating system image in the same Wyse Management Suite group, the upgrade may fail due to low disk space. In this scenario, you must reset to factory default settings for upgrading the ThinOS client again.
- If the thin client is registered in Wyse Management Suite group 1 and you set Wyse Management Suite group 2 token in group 1 policy, then the group 2 token is applied on GUI but the thin client will still be in group 1. You must reboot the thin client to change the thin client to Wyse Management Suite group 2.
NOTE:Dell Technologies recommends that you set a new 9.1 application package or a 9.1 OS firmware package in Group 1, so that thin client installs the package, and automatically reboots, and changes to Group 2.
- When you set a new firmware or an application package in Wyse Management Suite group 2 and then change the device from group 1 to group 2 before upgrading, the following two notifications are displayed:
- Wyse Management Suite server or group is changed. System is going to reboot to load full configuration. Press cancel in 60 seconds to prevent reboot.
- A new firmware or application is available, do you want to upgrade now or defer to the next reboot? The changes will automatically be applied in 120 seconds.
If you do not select an option, the thin client reboots after 60 seconds. After reboot the new application or firmware is installed and the thin client reboots again.
- 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:
- Displays a notification if you have changed the Wyse Management Suite group and if the files are downloaded from the new group.
- Displays a notification if the new firmware or application is downloaded in the same group.
- Installs the firmware or package after a reboot.
- ThinOS 9.1 does not apply OS firmware application package and BIOS firmware in child Select group.
- ThinOS 9.0.1136 firmware cannot be upgraded, or new application packages cannot be installed on ThinOS 9.0.1136 after September 2021. You can disable time server on ThinOS, change the system time to August 2021, then upgrade the operating system firmware or install the application packages. Dell Technologies recommends you to upgrade to ThinOS 9.1.1131 or later version when the issue is fixed. For more information about how to upgrade from ThinOS 9 to a later version using Wyse Management Suite, see the Dell Wyse ThinOS Version 9.1 Migration Guide at www.dell.com/support.