LG nexus 4 Guide De Démarrage Rapide page 96

Insert micro SIm card & turn on phone
Before you start using your phone, you may need to
insert your Micro siM card. if no card is installed, the
message "No siM card" appears on the phone's lock
screen.
the siM card tray is located on the left side of the
phone below the volume button. the eject button is a
small round aperture just above the tray door. to install
a new Micro siM card:
1. insert the siM ejection tool that comes with the
phone (or a thin pin) into the eject button aperture,
and push firmly but gently until the tray pops out.

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eject
button
aperture
Nexus 4 quick start guide