4.Locate the SIM card slot inside the battery compartment. Gently push the card to remove it from the computer.

5.Hold the new card with the metal contact facing upward and going into the slot first. Then, insert the card firmly into the slot until you hear a click.

6.Reinstall the battery. See “Replacing the battery” on page 67.

7.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing the keyboard

ThinkPad Edge E431

Before you start, print these instructions.

DANGER

During electrical storms, do not connect the cable to or disconnect it from the telephone outlet on the wall.

70User Guide

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Lenovo E531 manual Replacing the keyboard ThinkPad Edge E431