A violent workers’ revolt at the world’s largest iPhone factory this week in central China is further scrambling Apple’s strained supply and highlighting how the country’s stringent zero-Covid policy is hurting global technology firms.The troubles started last month when workers left the factory campus in Zhengzhou, the capital of the central province of Henan, due to Covid fears.Demand for iPhone 14 units during the Black Friday holiday weekend was much higher than supply and could cause major shortages leading into Christmas, Ives said, adding that the disruptions at Foxconn, which started in October, have been a major “gut punch” to Apple this quarter.Videos of people leaving Zhengzhou on foot went viral on Chinese social media in early November, forcing Foxconn to step up measures to get its staff back.Kuo said on Twitter that he believed Foxconn would speed up the expansion of iPhone production capacity in India as a result of Zhengzhou lockdowns and resulting protests."