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BEC 4700A / 4700AZ (4G/LTE) Wireless Outdoor Router
Step 2: Slide the SIM card with the mental contacts (gold plate) facing down to the SIM slot
then push it all the way in until you hear the clicking sound.
It is recommended to use an industrial-grade SIM card.
Step 3: Screw the cap back tightly.
Please power off the device before inserting or removing the SIM card.
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