Quick Answer A persistent vertical green line may indicate a display-panel or display-assembly problem, particularly when it appears on the Lock Screen, startup logo, and every app. However, the symptom alone does not confirm an OLED defect. Restart the phone, take a screenshot, check for physical damage, and install official updates. If the line remains … Read more
Quick Answer If your iPhone screen does not respond to taps or swipes, first disconnect charging accessories, remove the case and screen protector, and make sure the display is clean and dry. If the entire screen remains frozen, perform the correct force-restart procedure for your iPhone model. Persistent dead areas, ghost touches, or problems following … Read more
Quick Answer When an Android screen shows an image but does not register taps or swipes correctly, first remove the case and screen protector, clean and dry the screen, disconnect the charger, and restart the phone. Next, determine whether the failure affects one app, the entire screen, or the same physical area every time. A … Read more