What should I do if the touch control of my iPhone 18 Pro is not sensitive after applying a screen protector?

A: ① First, check if there is any dust inside - if there are particles on the screen or the film surface when applying the film, it will cause local lifting, affecting touch control. You can lift the film or use a dust removal chamber to complete the application. ② Confirm if it is pasted askew - if the edge overflows into the arc area, it will interfere with edge touch. ③ Confirm the touch Settings - turn off the excessively long holding time in "Touch Adjustment". ④ If it is still not sensitive, it is mostly due to air bubbles in the bonding layer or problems with the film itself. The official supports free replacement if the film application fails.