Huawei P8 Lite - Manual (Page 7)

3
Getting started
Follow the instructions in the following figures to set up your phone. Do not
insert or remove a SIM card when your phone is turned on.
Please exercise caution when using the SIM ejector pin to avoid hurting
your fingers or damaging your phone. Store your pin in a safe place out
of the reach of children to prevent them from swallowing it or injuring
themselves by accident.
The upper card slot may not support nano-SIM cards. If it does
not, you can insert only a microSD card into it.