Lenovo ThinkPad 10 - Manual (Page 36)

3. Hold the micro SIM card with the metal contacts facing down, and then insert it firmly into the
micro-SIM-card slot as shown until you hear a click.
4. Close the protective cover and turn on your tablet.
To remove the micro SIM card, do the following:
1. Turn off the tablet.
2. Open the protective cover.
28 User Guide