Lenovo ThinkPad T400 6474 Hardware Maintenance Manual page 104

Table 16. Removal steps of modem daughter card (continued)
Turn the card over 3 , and detach the modem connector 4 .
3
4
When installing: Make sure that the modem connector and the connector on the
underside of the card are attached firmly.
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ThinkPad T400 and R400 Hardware Maintenance Manual