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SIM card slot removal and installation - ThinkPad R400, T400
For access, remove these FRUs, in order:
  1. Battery.
  2. Palm rest or palm rest with fingerprint reader.
  3. Keyboard.

Note: If the SIM card has been inserted in its slot, remove it before you start the servicing. After you finish the servicing, make sure that you insert the card back into the slot firmly.

Step 1

Remove the SIM card from the battery pack slot in the direction of arrow (3) as shown in this figure.

Step 2-3


Step Screw (quantity) Color Torque
2 M2 × 3.5 mm, flat-head, nylon-coated (1) Black 0.167 Nm(1.7 kgfcm)

When installing: Make sure the connector (3) is attached firmly.
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2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

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Document ID : PD010714
Legacy Document ID : MIGR-71497
Last Updated :
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