Zte V817 Quick Start Manual page 6

Starting Up
Switch off your phone before installing or replacing the battery
or the SIM card. The microSD card is optional and can be
installed and removed while the phone is turned on. Unmount
the microSD card before removing it.
1. Place your finger in the slot at the bottom of the back cover to
lift and remove the cover.
2. Hold the SIM card with its cut corner oriented as shown and
slip it into the card holder.
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