The new firmware versions for the Pentax H90, I-10, W90 and X90 all contain the same fixes, related to use of Eye-Fi wireless-capable Secure Digital cards with the cameras. In all cases, the new firmware releases carry version number 1.01.

The updates allow all four cameras to remember Eye-Fi function settings after being power-cycled. They also disable support for Eye-Fi's "Endless Memory Mode", which automatically deletes images from the Eye-Fi card once they've been successfully transferred via Wi-Fi. Finally, the firmware updates change behaviour so that Eye-Fi transfer ceases as soon as the yellow battery level warning indicator is displayed, as a precaution that stops the camera from powering down during a wireless transfer due to low battery power.

More details and the firmware downloads themselves can be found on the Pentax Support & Service pages for the Optio H90, I-10, W90 and X90 respectively.