180 degrees more
(Cross-section)
Notes:
• Ensure that you use the correct screw. It is recommended to use new screws for replacements. If you
have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information
table for each step.
• Ensure that torque screwdrivers are calibrated correctly following country specifications.
Retaining serial numbers
This topic provides instructions on the following:
•
“Restoring the serial number of the system unit” on page 58
•
“Retaining the UUID” on page 59
Restoring the serial number of the system unit
When the computer was manufactured, the EEPROM on the system board was loaded with the serial
numbers of the system and all major components. These numbers need to remain the same throughout
the life of the computer.
If you replace the system board, you must restore the serial number of the system unit to its original value.
The serial number of the system unit is written on the label attached to the bottom of the computer.
If you cannot find the serial number of the system unit on the bottom of the computer, try the following
method to get the number:
Note:
Before you perform the operation, ensure that the UEFI/Legacy setting within the
Startup
menu in
the ThinkPad Setup program is set to
UEFI Only
.
1. Connect a USB memory key to the computer.
2. Go to http://www.lenovo.com/maintenanceutilities and follow the instructions on the screen to create a
Maintenance Key.
Note:
Only an authorized Lenovo service technician can access the above Web site.
3. Restart the computer.
4. When the logo is displayed, press Esc. The ThinkPad Config Information Update Utility interface is
displayed.
5. Type 1 under
Enter the action desired
, then press Enter. The ThinkPad Serial Number Update Utility for
Asset ID screen is displayed.
6. Type 2 under
Enter the action desired
, then press Enter. The serial number of each device in your
computer is displayed; the serial number of the system unit is listed as follows:
20-
Serial number
7. Record the serial number of the system unit.
After you replace the system board, do the following to restore the serial number of the system unit:
1. Connect the Maintenance Key to the computer.
58
ThinkPad L460 Hardware Maintenance Manual
Summary of Contents for THINKPAD L460
Page 1: ...ThinkPad L460 Hardware Maintenance Manual ...
Page 6: ...iv ThinkPad L460 Hardware Maintenance Manual ...
Page 11: ...DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 5 ...
Page 12: ...6 ThinkPad L460 Hardware Maintenance Manual ...
Page 13: ...PERIGO PERIGO PERIGO PERIGO Chapter 1 Safety information 7 ...
Page 14: ...PERIGO PERIGO PERIGO PERIGO DANGER 8 ThinkPad L460 Hardware Maintenance Manual ...
Page 15: ...DANGER DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information 9 ...
Page 16: ...DANGER VORSICHT VORSICHT VORSICHT VORSICHT 10 ThinkPad L460 Hardware Maintenance Manual ...
Page 17: ...VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information 11 ...
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Page 19: ...Chapter 1 Safety information 13 ...
Page 20: ...14 ThinkPad L460 Hardware Maintenance Manual ...
Page 21: ...Chapter 1 Safety information 15 ...
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Page 23: ...Chapter 1 Safety information 17 ...
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Page 85: ...Removal steps of the wireless WAN card 1 Chapter 9 Removing or replacing a FRU 79 ...
Page 110: ...d Wireless LAN auxiliary antenna black 104 ThinkPad L460 Hardware Maintenance Manual ...
Page 115: ......
Page 116: ...Part Number SP40J65964 Printed in China 1P P N SP40J65964 1PSP40J65964 ...