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Before servicing ThinkPad T400s, T410s, and T410si
Removing the SIM card:
Some models of the ThinkPad T400s, T410s, and T410si you are servicing might have the SIM card that the
customer has installed.
If the computer you are servicing has the SIM card, remove it before you start the servicing.
To remove the SIM card, you need to remove the battery pack rst. (See 1010 Battery pack.)
After you nish the servicing, make sure that you insert the card back into the slot rmly.
Notice on disconnecting the cable from ip-lock ZIF connector:
Some cables used in the ThinkPad T400s, T410s, and T410si are connected to the ip-lock ZIF connectors.
When disconnecting the cable from those connectors, do as shown in this gure.
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74 Hardware Maintenance Manual