Downgrade to previous versions of ThinOS
You can only downgrade to ThinOS 9.1.3129 or later versions using Wyse Management Suite. If you want to downgrade to any version prior to ThinOS 9.1.3129, you must use Merlin images posted on the
www.dell.com/support site.
NOTE: If you want to downgrade to ThinOS 9.0, you must clear TPM or PTT in the BIOS and then use the USB imaging tool and Merlin images to downgrade.
NOTE: You cannot downgrade to ThinOS 8.6_606 or previous versions, if you are running the systems with SSD devices.
NOTE: You must install the application packages after you downgrade from ThinOS 9.1.4234 or later versions to ThinOS 8.6 using Merlin Image.