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Use A Golden Key U1 Tool To Flash-Write Key Id Information; Remove The Upper Case (With Keyboard) - Lenovo 13ABR8 Hardware Maintenance Manual

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Figure 22. Remove two screws and the system board
Screw specifications
M2 × L3.5
Go to
https://support.lenovo.com/partslookup
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
and use a Golden Key U1 tool.

Remove the upper case (with keyboard)

Make sure the following FRUs (CRUs) have been removed.
"Remove the lower case" on page 28
Step 1.
Disconnect the battery pack cable and the EDP cable from the system board.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.
42
Yoga 6 (13", 8) Hardware Maintenance Manual
Number of screws
2
to look up the Lenovo part numbers of the following
for detailed instructions on how to create

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