Using Passwords; Symptom-To-Fru Index - Lenovo THINKPAD X1 Tablet Gen 3 Hardware Maintenance Manual

Using passwords

You can set a supervisor password to prevent your computer from unauthorized use.
The supervisor password protects the system information stored in the ThinkPad Tablet Setup program. It
provides the following security features:
• If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad
Tablet Setup program. Unauthorized users cannot change most of the system configuration options in the
ThinkPad Tablet Setup program without the password.
• The system administrator can use the supervisor password to access a computer even if the user of that
computer has set a power-on password. The supervisor password overrides the power-on password.
• The system administrator can set the same supervisor password on many ThinkPad computers to make
administration easier.
Attention: If the supervisor password has been forgotten and cannot be made available to the service
technician, there is no service procedure to reset the password. The system board must be replaced for a
scheduled fee.
To set, change, or remove a password:
Note: Before you start, print these instructions and the instructions on "ThinkPad Tablet Setup" of the User
Guide. You also can screen-capture the instructions and send the pictures to your smartphone or notebook
computer so that you can view the instructions during operation.
1. Save all open files, and exit all apps.
2. Restart the computer. Tap around "Press Enter or touch here" until the ThinkPad Tablet Setup app
starts.
3. Tap Security ➙ Password.
4. Tap Enter next to the supervisor password item and follow the instructions on the screen.
5. Save configuration changes and exit.

Symptom-to-FRU index

This section contains following information:
• "Error codes" on page 34
• "Beep errors" on page 35
• "Intermittent problems" on page 36
• "Undetermined problems" on page 36
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or
action, in sequence." If replacing a FRU does not solve the problem, put the original part back in the
computer. Do not replace a nondefective FRU.
This index can also help you determine, during regular servicing, what FRUs are likely to be replaced next.
A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be
any number.
If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not
described there, go to "Intermittent problems" on page 36.
.
Chapter 4 Related service information
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