If you’re a photographer shooting with Eyefi’s older generation Wi-Fi memory cards, here’s something you should know: your card will soon become more or less useless.
Just days after announcing that it had sold its cloud services to Ricoh, Eyefi sent out an email to customers this week, informing them that older X1 and X2 cards — everything prior to the new Mobi line — now have an “End of Life” date of September 16th, 2016.
Source: Eyefi To Brick Its Older Wi-Fi Cards, And Photographers Aren’t Happy
So even hardware is suspect to the whims of the manufacturer. Having a kill switch on stuff you buy sucks.