Remove The M.2 Solid-State Drive - Lenovo IdeaPad Slim 7 Pro Hardware Maintenance Manual

Figure 6. Rmoeve the battery pack
Go to https://support.lenovo.com/partslookup
replacement part:
Battery pack

Remove the M.2 solid-state drive

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 32
Step 1. Disconnect the battery pack cable.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.
Figure 7. Disconnect the battery pack
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IdeaPad Slim 7i Pro (14", 5) Hardware Maintenance Manual
to look up the Lenovo part numbers of the following