Uefi Diagnostic Program; Bootable Diagnostic Programs - Lenovo ThinkPad Helix 20CG Hardware Maintenance Manual

UEFI diagnostic program

A UEFI diagnostic program is preinstalled on the tablet. It enables you to test memory modules and internal
storage devices, view system information, and check and recover bad sectors on internal storage devices.
To run the UEFI diagnostic program, do the following:
Note: Before you start, connect your tablet to a keyboard. Use the external keyboard to perforrm the
following operations.
1. Restart the tablet. When the logo screen is displayed, repeatedly press and release the F10 key. The
main screen of the UEFI diagnostic program is displayed.
Notes:
• If the tablet cannot be turned on, go to "Power system checkout" on page 26, and check the
power sources.
• If an error code is displayed, go to "Symptom-to-FRU index" on page 33 for error code descriptions
and troubleshooting hints.
2. Follow the instructions on the screen to use the diagnostic program.
The options on the main screen are as follows:
Note: The items on the main screen of the UEFI diagnostic program are subject to change.
Table 1. Items on the main screen of the UEFI diagnostic program
• Quick Memory Test
• Quick Storage Device Test
• LCD test
• PCI-e test
• Exit Application

Bootable diagnostic programs

If the tablet you are servicing is not installed with the UEFI diagnostic program, you can download a
bootable diagnostic program from the Lenovo Support Web site. The bootable diagnostic programs enable
you to test tablet memory and internal storage devices, view system information, and check and recover
the internal storage devices.
To use the bootable diagnostic programs, you can create a bootable diagnostic medium on a Universal
Serial Bus (USB) device or CD.
To create a bootable diagnostic medium, do the following:
1. Go to http://www.lenovo.com/diags.
2. Tap Lenovo Bootable Diagnostics.
3. Follow the instructions on the Web site to create a bootable diagnostic medium.
To use the diagnostic medium you have created, do the following:
1. Connect the bootable diagnostic medium to the tablet.
2. Restart the tablet. When the logo screen is displayed, tap To interrupt normal startup, press Enter
or tap here on the screen.
Notes:
Tests
• System Information
• Generate configuration file
• Execute from configuration file
Tools
.
Chapter 3 General checkout
25