Replacing The Nano-Sim Card - Lenovo ThinkPad P52s User Manual

5. Insert a new battery until it clicks into place. Ensure that both battery latches are in the locked positions.
6. Turn the computer over. Connect the ac power adapter and all cables to the computer.

Replacing the nano-SIM card

Before you start, read "Important safety information" on page v and print the following instructions.
Nano-SIM card is a small plastic card with an Integrated Circuit (IC) chip mounted on one side of the card.
If your computer supports wireless WAN, your computer might require a nano-SIM card to establish wireless
WAN connections. Depending on the model, you might need to purchase a nano-SIM card or a nano-SIM
card might already be installed in your computer. In some countries or regions, a nano-SIM card is part of the
shipping contents that come with your computer.
Attention: When installing or removing the nano-SIM card, do not touch the nano-SIM card metal
connectors.
To replace the nano-SIM card, do the following:
1. Disable the built-in battery. See "Disabling the built-in battery" on page 100.
2. Ensure that the computer is turned off and disconnected from ac power and all cables.
3. Close the computer display and turn the computer over.
4. Remove the removable battery. See "Replacing the removable battery" on page 100.
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T580 and P52s User Guide