Lenovo Yoga Slim 7i Carbon, Hardware Maintenance Manual

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Figure 22. Remove two screws and then remove the system board
Screw specifications
Number of screws
M2 x L3.5 2
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement
part:
System board
Use a Golden Key U1 tool to flash-write key id information
After replacing the system board and re-assembling the computer, use a pre-made Golden Key U1 tool to
start the computer and flash-write the serial number (SN), machine type (MT), product name (PN), and UUID
to the new system board.
The Golden Key U1 tool is prepared by running the U1 Update software on a FAT32-formatted USB thumb
drive. Go to
http://support.lenovo.com/us/en/solutions/HT506954
for detailed instructions on how to create
and use a Golden Key U1 tool.
Remove the LCD module
Make sure the following FRUs (CRUs) have been removed.
“Remove the lower case” on page 30
Step 1. Disconnect the camera board cable and EDP cable from the system board. Detach the main and
auxiliary antenna cable connectors.
Chapter 4
.
Removing a FRU or CRU
41