Open The Battery Door; Install Sim Card; Install Memory Card - Innos i7 User Manual

2.2 Open the battery cover
Push the battery cover upwards.

2.3 Install SIM Card

This phone supports single SIM/USIM cards, before you
power on the phone, make sure there is at least one SIM/USIM
card is inserted in either USIM/SIM card slot.
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