Remove The Upper Case (With Keyboard) - Lenovo ThinkBook Plus Gen 4 Hardware Maintenance Manual

3. Unzip to local drive and double-click the ColorTool.EXE file. Then, follow the on-screen
instruction to input the display serial number and click "Submit". When the new color
profiles are installed successfully, all steps will be marked with "√".
4. After LCD panel replacement, press Shift + Delete to permanently delete the ColorTool
folder on customer's device.
You will also find the instructions that come with the LCD panel.
• Go to https://support.lenovo.com/downloads/g4_e_ink_touch
touch on E-ink panel, which also included in Golden Key U1 tool, and E-ink panel test can be
applied by Lenovo Diagnostics Windows Versions (Linux and UEFI version have no such
function).
• When you turn on the computer and the LCD goes black, run LCD Self-Test to help you
determine whether the LCD functions normally.
To run LCD Self-Test:
1. Ensure that the computer is connected to ac power. Then, press the power button for about
seven seconds to turn off the computer.
2. 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.
3. The test lasts for about 20 seconds and then exits automatically. You also can press the
power button to exit the test.
Go to https://support.lenovo.com/partslookup
replacement part:
LCD module

Remove the upper case (with keyboard)

Make sure the following FRUs (CRUs) have been removed.
"Remove the lower case" on page 26
"Remove the battery pack" on page 27
"Remove the solid-state drive" on page 28
"Remove the speakers" on page 30
"Remove the heat sink" on page 31
"Remove the fans" on page 32
"Remove the EDP cable brackets" on page 33
"Remove the audio board cable" on page 33
"Remove the fingerprint cable" on page 34
"Remove the touchpad cable" on page 35
"Remove the system board" on page 36
"Remove the fingerprint frame" on page 37
"Remove the fingerprint module" on page 38
"Remove the LCD module" on page 39
Go to https://support.lenovo.com/partslookup
replacement part:
Upper case (with keyboard)
to look up the Lenovo part numbers of the following
to look up the Lenovo part numbers of the following
to download the tool to test the
.
Chapter 4 Removing a FRU or CRU
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