Use A Golden Key U1 Tool To Flash-Write Key Id Information; Remove The Speakers - Lenovo Yoga Pro 7 Hardware Maintenance Manual

Figure 22. Remove five screws and then remove the system board
Screw specifications
M2 x L3.5
Step 4. Remove the I/O board FPC from the system board
Figure 23. Remove the I/O board FPC
Go to
https://support.lenovo.com/partslookup
replacement parts:
System board
I/O board FPC

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
and use a Golden Key U1 tool.

Remove the speakers

Make sure the following FRUs (CRUs) have been removed.
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Hardware Maintenance Manual
Number of screws
5
to look up the Lenovo part numbers of the following
for detailed instructions on how to create