American farmers install Ukrainian firmware on their tractors

Recently the website motherboard.vice.com  has echoed the increase in the acquisition and use by many North American farmers of firmware from the black market in order to replace the default firmware installed in tractors of companies like John Deere. According to the farmers, this trend is motivated by the excessive control that the original firmware exercises when repairs or modifies their own vehicles outside the John Deere dealerships and "authorized" repair shops. Although this practice would lose the warranty provided by the manufacturer, in the United States it is completely legal, as indicated by an exemption to the "Digital Millennium Copyright Act" called "Exemption to Prohibition on Circumvention of Copyright Protection Systems for Access Control Technologies".