Use A Golden Key U1 Tool To Flash-Write Key Id Information - Lenovo 82VA002UIX Hardware Maintenance Manual

Figure 25. Remove the system board with the I/O board cable
Step 5. Disconnect the I/O board cable from the system board and then remove the I/O board cable.
Figure 26. Remove the I/O board cable
Go to
https://support.lenovo.com/partslookup
replacement parts:
System board
I/O board cable

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.
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Hardware Maintenance Manual
to look up the Lenovo part numbers of the following
for detailed instructions on how to create