Eye-Fi X2 Card Firmware 5.0001 is now available for download.
NOTE: For customers with Eye-Fi X2 Cards running firmware version 4.1017 or earlier, the firmware update may result in a failure message after the 30-second countdown. If this occurs, please do not be alarmed and follow the instructions to remove your Eye-Fi Card and reinsert it. If you do not get prompted for a firmware update again after reinserting card, the firmware update was completed successfully despite the erroneous message. This firmware version is for X2 cards only.