How to Fix a Broken Screen Protector: Replace It
You generally cannot repair a cracked screen protector reliably; replace it. Turn off the phone, remove the case, cover shattered glass with tape, and slowly lift the protector from an edge. Clean the display with a lint-free cloth and a small amount of screen-safe alcohol, then apply a matching replacement. Stop if the phone’s actual screen is cracked, lifting, hot, or no longer responds normally.