Physical damages go deeper than cosmetic appearance. Your cracked screen can start letting moisture, dirt, and other particles enter your device, and consequently damage its internal parts. As soon as you see any signs of display breakage on your screen, it is better to contact professionals to perform iphone repair after reading the instructions on the company's official site to avoi... https://livepositively.com/how-do-you-know-if-your-iphone-needs-a-screen-replacement/