Lenovo IdeaPad 1 14ADA7, Hardware Maintenance Manual

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Figure 33. Remove the system board
Screw specifications Number of screws
M2 x L4 1
M2.5 x L4.5 2
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers 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 Goldern Key U1 tool.
Remove the upper case
Make sure the following FRUs (CRUs) have been removed.
“Remove the lower case” on page 28
Step 1. Disconnect the battery pack cable. Then, remove six screws.
Chapter 4
.
Removing a FRU or CRU
47