Learn how to insert and remove a SIM card from your device. Your cellular service is activated through your SIM card; without it you cannot use cellular features. Note that a SIM card tray removal tool may be needed and depending on the device you might need a Micro SIM card.
1.
Remove the phone's back cover.
2.
Remove the battery.
3.
Slide the micro SIM card in or out of the SIM card slot.