A number of iPhone 12 mini users are reporting issues with the touchscreen, with the smallest iPhone becoming unresponsive to touch input when it is inside a case and using a screen protector.Posts made to the Apple Support forum indicate a number of customers who have bought the iPhone 12 mini are enduring similar problems with its use. For customers electing to protect their new purchase, some are discovering that the case and display protector they are using could stop the iPhone from working properly.Forum posts mention the touchscreen being unresponsive, preventing users from unlocking or swiping, or even failing to accept touch inputs at all. The problem is also intermittent, with touch inputs being accepted sometimes, but not at others.Read more