Before Servicing Thinkpad X220 Tablet And X220I Tablet Models - Lenovo ThinkPad X220 Maintenance Manual

Before servicing ThinkPad X220 Tablet and X220i Tablet models

Removing the SIM card:
Some models of the ThinkPad X220 Tablet and X220i Tablet you are servicing might have the SIM card that the
customer has been 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 first. (See "1020 Battery pack" on page 61.)
After you finish the servicing, make sure that you insert the card back into the slot firmly.
Notice on disconnecting a cable from a flip-lock ZIF connector:
Some cables used in ThinkPad X220 Tablet and X220i Tablet models are connected to flip-lock ZIF connectors.
When disconnecting a cable from a flip-lock ZIF connector, do as shown in the following figure.
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Hardware Maintenance Manual
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