Installing the SIM Card
It should be installed when the device is in power-off state. Otherwise, the SIM card will be damaged.
Step 1: Pull the SIM Card tray out from the slot and put the SIM card on it.
Step 3: Then gently push the tray into the slot until it locks in place.
Remark: The SIM card slot is with fool-proof design, please do not insert or pull violently to avoid damage.
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