SkyScout must be turned off before inserting a SkyScout Expansion Card into the SD card slot.
Please power your SkyScout down by pressing the power button.
Insert the SkyScout Expansion Card into the SD card slot.
Turn your SkyScout back on.
If you are still experiencing difficulties in reading the card, please make sure that the lock on your SD Card is in the unlocked position. The unlocked position is when the tab is closest to the gold connector part of the SD card, away from the center of the card.
Please note that you must upgrade to the version 1.29 (or better) firmware before you can use the Expansion Cards.
For detailed instructions on how to update your SkyScout, please visit this page.