Lenovo THINKPAD X1 Tablet Gen 3, User Manual

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Solution : Machine UUID is invalid. Have the computer serviced.
• Message : Fan error
Solution : Cooling fan has failed. Shut down the computer immediately and have the computer serviced.
• Message : Thermal sensing error
Solution : The thermal sensor has a problem. Shut down the computer immediately and have the
computer serviced.
• Message : Bottom Cover Tamper Detection Error
Solution : The Bottom Cover Tamper Switch is not working. Have the computer serviced.
• Message : Error: The non-volatile system UEFI variable storage is nearly full.
Note: This error indicates that the operating system or applications cannot create, modify, or delete data
in the non-volatile system UEFI variable storage due to insufficient storage space after the POST. The
non-volatile system UEFI variable storage is used by the UEFI BIOS and by the operating system or
applications. This error occurs when the operating system or applications store large amounts of data in
the variable storage. All data needed for the POST, such as BIOS setup settings, chipset or platform
configuration data, are stored in a separate UEFI variable storage.
Solution : Enter ThinkPad Setup after the error message is displayed. A dialog asks the user for
confirmation to clean up the storage. If the user selects Yes , all data that were created by the operating
system or applications are deleted except global variables defined by the Unified Extensible Firmware
Interface Specification. If the user selects
No , all data is kept, but the operating system or applications will
not be able to create, modify, or delete data in the storage.
If this error happens at a service center, Lenovo-authorized service personnel will clean up the non-volatile
system UEFI variable storage using the above solution.
Diagnosing problems
Use Lenovo Vantage to troubleshoot and resolve computer problems. The app combines diagnostic tests,
system information collection, security status, and support information, along with hints and tips for
maximum system performance. To run Lenovo Vantage, see “Discovering Lenovo apps” on page 13.
The troubleshooting information or the diagnostic programs might tell you that you need additional or
updated device drivers or other software. You can get the latest technical information and download device
drivers and updates from the Lenovo Support Web site at:
https://support.lenovo.com
For additional information, refer to the help system of Lenovo Vantage.
Windows recovery apps
The Windows recovery apps enable you to reset your computer or use advanced startup options.
It is recommended that you create a recovery USB drive as early as possible. Store the recovery USB drive
as a backup or replacement for the Windows recovery apps. For more information, see “Creating and using a
recovery USB drive” on page 63.
Resetting your computer
If your computer does not perform well, you might consider resetting your computer. In the resetting
process, you can choose to keep your files or remove them, and then reinstall the Windows operating
system.
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User Guide