LG LM-G810EAW Guia Del Usuario página 436

3
Put the SIM card on the card tray with the gold-coloured contacts
facing downwards.
Put the primary SIM card on the SIM card tray 1 and the secondary
SIM card on the SIM card tray 2.
• The SIM card tray 2 also serves as the memory card tray. However, you
cannot put both the SIM card and the memory card (optional) at the
same time.
4
Insert the card tray back into the slot.
Basic Functions 59