Diagnose And Troubleshoot Your Computer; Troubleshoot And Diagnose At Lenovo Support Web Site - Lenovo ThinkPad X1 Carbon Gen 12 User Manual

Blinking patterns Error codes
0285: TCG-compliant functionality-related
error (might be the TPM initialization failure)
0286: Integrated graphics error
0287: Discrete graphics error
0288: Computer display error
0281: General embedded controller error

Diagnose and troubleshoot your computer

This section provides introduction to a set of diagnostics and troubleshooting tools at Lenovo Support Web
site, the Vantage app, and in your computer. They can help you diagnose common software and hardware
issues.
The following table lists these diagnostics tools and the recommended conditions for each tool.
Diagnostics tool

Troubleshoot and diagnose at Lenovo Support Web site

Hardware scan
UEFI Diagnostics tool
Troubleshoot and diagnose at Lenovo Support Web site
Lenovo provides two different diagnosing options to help you identify and resolve problems on your
computer.
Step 1. Go to
https://www.pcsupport.lenovo.com/
72
ThinkPad X1 Carbon Gen 12 and ThinkPad X1 2-in-1 Gen 9 User Guide
Solutions
Replace the system board (service provider
only).
Replace the system board (service provider
only).
1. Reinstall or replace the discrete graphics
card (service provider only).
2. If step 1 does not work, replace the
system board (service provider only).
1. Reconnect the display cable on both the
system board side and the computer
display side (service provider only) and
check the LCD panel.
2. If step 1 does not work, connect an
external display to your computer and
check the status (customer or service
provider).
• If the external display works, replace
the LCD panel (service provider only).
• If the external display does not work,
replace the system board (service
provider only).
Replace the system board (service provider
only).
Recommended scenario
You want to have an online troubleshooting or scan of
hardware and drivers on your computer.
• Your computer is installed with the Vantage app.
• You want to perform basic examinations of the
hardware components.
• You cannot log in to the operating system.
• Your computer cannot connect to the network.
and enter your product name in the search box.