Lenovo 20WJ001HGE, Руководство по техническому обслуживанию аппаратной части

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Figure 33. Remove the USB board cable bracket 2
Screw specifications
Number of screws
M1.2 x L1.05 1
Step 2. Detach the USB board cable connector and then remove the USB board cable (62 pin).
Figure 34. Remove the USB board cable (62 pin)
Go to
https://support.lenovo.com/partslookup
to look up the Lenovo part numbers of the following
replacement parts:
USB board cable (62 pin)
USB board cable bracket
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 pen holder
Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the battery pack” on page 29
“Remove the system board mylar” on page 30
“Remove the solid-state drive (SSD)” on page 30
“Remove the Wi-Fi card mylar” on page 31
“Remove the fingerprint board cable” on page 32
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Hardware Maintenance Manual