What could be the reasons for the touch not being sensitive after applying a film? How to solve it?

A: Common reasons and solutions for unresponsive touch after applying the film: ① The film is too thick: A film larger than 0.4mm will affect the capacitive touch signal. It is recommended to choose a film of 0.3mm or less. ② There are bubbles/dust between the film and the screen: Bubbles can cause poor contact in the touch area. Reapply the film to ensure there are no bubbles. ③ The issue of the base material of the film: Inferior PET film or film with high metal content will block the touch signal. Switch to tempered film of a regular brand. ④ Alignment deviation: The edge of the film blocks the touch area (especially on curved screens). Re-align. ⑤ Mobile phone system issue: Restart the phone or check the touch sensitivity Settings (some phones have the option to "increase touch sensitivity", it is recommended to turn it on after applying the screen protector). ⑥ Edge curling of the film: If the edges do not fit properly, it may cause local touch failure. Replace the film. The thickness of Woowhead Guanfudun is approximately 0.3mm. It is equipped with a dust removal chamber to reduce bubble dust. Nanbo high alumina glass does not shield touch signals. If there are touch control issues after applying the film, first check for bubbles and alignment. If the problem persists after re-application, contact after-sales service for replacement (brand new and unopened products enjoy a 7-day no-reason return and exchange policy).