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Attention:
The system board is sensitive to, and can be damaged by, electrostatic discharge (ESD). Before
touching it, establish personal grounding by touching a ground point with one hand or by using an
electrostatic discharge strap.
Before servicing the computer
Carefully read this topic before servicing the computer.
Disable Fast Startup and the built-in battery
Before replacing any FRU/CRU, ensure that you disable Fast Startup first and then disable the built-in
battery.
To disable Fast Startup:
1. Go to Control Panel and view by Large icons or Small icons.
2. Click
Power Options
, and then click
Choose what the power buttons do
on the left pane.
3. Click
Change settings that are currently unavailable
at the top.
4. If prompted by User Account Control (UAC), click
Yes
.
5. Clear the
Turn on fast startup
check box, and then click
Save changes
.
To disable the built-in battery:
1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter the UEFI BIOS
menu.
2. Select
Config
➙
Power
. The
Power
submenu is displayed.
3. Select
Disable Built-in Battery
and press Enter.
4. Select
Yes
in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.
1010 ThinkPad Pen Pro
Removal step of the ThinkPad Pen Pro
Note:
Ensure that you reinstall the ThinkPad Pen Pro after finishing the servicing.
64
X390 Yoga Hardware Maintenance Manual
Summary of Contents for ThinkPad X390
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Page 6: ...iv X390 Yoga Hardware Maintenance Manual ...
Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...
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Page 13: ...PERIGO PERIGO Chapter 1 Safety information 7 ...
Page 14: ...PERIGO PERIGO PERIGO PERIGO PERIGO 8 X390 Yoga Hardware Maintenance Manual ...
Page 15: ...PERIGO DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...
Page 16: ...DANGER DANGER DANGER DANGER VORSICHT 10 X390 Yoga Hardware Maintenance Manual ...
Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...
Page 18: ...VORSICHT VORSICHT VORSICHT 12 X390 Yoga Hardware Maintenance Manual ...
Page 19: ...Chapter 1 Safety information 13 ...
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Page 21: ...Chapter 1 Safety information 15 ...
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Page 23: ...Chapter 1 Safety information 17 ...
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Page 49: ... Copyright Lenovo 2019 43 ...
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Page 57: ...Major FRUs d a b c Chapter 6 Locations 51 ...
Page 60: ...LCD FRUs 54 X390 Yoga Hardware Maintenance Manual ...
Page 101: ... 2090 Wireless antenna kit on page 91 Chapter 8 Removing or replacing a FRU 95 ...
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Page 108: ...Part Number SP40K05260 Printed in 1P P N SP40K05260 1PSP40K05260 ...