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Phone calls
2.
Insert the tip of the SIM eject tool into the small hole next to the
SIM card tray slot.
3.
Push the tip all the way into the hole until the SIM card tray ejects.
4.
Pull the SIM card tray out, and place the SIM card (contacts facing
down) into the tray.
5.
Insert the SIM card tray back into the slot.
Removing the SIM card
Make sure to switch off HTC One before removing your SIM card.
1.
Hold the phone face up.