Franklin MWD-480 - Manual (Page 15)

SD Slot: Insert an SD card here.
Slide the SD card into the slot with
the contacts facing the back of the
device. Push gently until it clicks into
place. To remove an SD card from
the slot, put your thumb on the SD
card and push it in slightly. You hear
a click and the SD card pops out.
Slide it out of the slot.
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