Palm Treo 700P - Manual (Page 83)

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Inserting and removing expansion cards
1. Press down and release the dummy card.
2. After you feel the expansion card slot eject the dummy card, remove the card from the slot.
3. Hold your smartphone with the screen facing you, and hold the card with the label facing you.
The notch on the card should be in the lower-left corner next to the antenna.
4. Insert the card into the expansion card slot until you feel it lock into place.