Minor spots caused by software glitches or stuck pixels may improve after restarting the phone, updating the software, or using a pixel-fixing app. Removing and cleaning the screen protector can also help if the marks are external. However, spreading black spots, flickering areas, or discoloration usually indicate hardware damage that cannot be fixed at home. If the screen becomes unresponsive or the spots grow larger over time, it is best to visit an authorized repair center to prevent further display problems. Visit Now: https://devicefixes.com/blog/spots-on-phone-screen/