iPhone 11 touch screen no response
Touch screen no response iPhone 11
iPhone 11, iOS 14
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First try Forced Restart
https://support.apple.com/guide/iphone/force-restart-iphone-iph8903c3ee6/ios
also see iphone 11 screen recall
The company has announced a replacement program and confirmed that affected devices were manufactured during a six-month period between November 2019 and May 2020.