Lenovo 21C3S0RL00 User Manual page 64

Question
Where can I get the latest device
drivers and UEFI BIOS?
What do I do if the LCD goes
black when I turn on the
computer?
58
ThinkPad L14 Gen 3 and ThinkPad L15 Gen 3 User Guide
Solution
• From the Vantage app. See "Install a Windows operating system and drivers"
on page 41 and "Update UEFI BIOS" on page 39.
• Download from Lenovo Support Web site at
To run LCD Self-Test:
1. Ensure that the computer is connected to the ac power adapter.
2. Press the power button for about seven seconds to turn off the computer.
3. Press Fn, left Ctrl, and the power button at the same time. If the computer
displays five solid colors in sequence across the entire screen, it indicates
that the LCD functions normally.
4. The test lasts for about 20 seconds and then exits automatically. You also
can press the power button to exit the test.
https://pcsupport.lenovo.com
.