When a phone’s touchscreen becomes unresponsive, try restarting the device, as this can clear temporary glitches. Remove any screen protectors, as they can sometimes interfere with touch sensitivity, especially if improperly applied. Cleaning the screen with a microfiber cloth to remove any dirt or oil can also help improve responsiveness. For phones that support it, recalibrating the touchscreen in settings can restore accuracy. If the screen is physically cracked, it may need professional repair, but for minor software-related issues, these steps are often effective. If problems persist, consider resetting the device to factory settings as a last resort.