Remove The Fingerprint Board (For 15-Inch And 16- Inch Models); Remove The System Board (For 14-Inch Models) - Lenovo IdeaPad Slim 3 Series Hardware Maintenance Manual

Remove the fingerprint board (for 15–inch and 16–inch models)
Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case (for 15–inch and 16–inch models)" on page 29
"Remove the fan (for 15–inch and 16–inch models)" on page 37
"Remove the I/O board (for 15–inch and 16–inch models)" on page 44
Step 1. Disconnect the fingerprint board cable from the fingerprint board. Then, remove the fingerprint
board.
Figure 41. Disconnect the fingerprint board cable and remove the fingerprint board
Go to https://support.lenovo.com/partslookup
replacement part:
Fingerprint board
Remove the system board (for 14–inch models)
Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case (for 14–inch models)" on page 28
"Remove the Wi-Fi card" on page 31
"Remove the 2242 solid-state drive (for selected models)" on page 32
"Remove the 2280 solid-state drive (for selected models)" on page 33
"Remove the heat sink" on page 35
Step 1. Remove two screws and lift the right hinge.
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IdeaPad Slim 3 Series Hardware Maintenance Manual
to look up the Lenovo part numbers of the following