Smartphone details: samsung s5, android version 5.1, broken screen. I did work with a broken screen but recently when i touch certain areas, it doesn't work even though the area is not the broken part. When i try to hold an icon, i lose touch after 5 seconds. I tried turning on the increase sensitivity in the settings, it still did not work. i use apps that calibrate the touch sensitivity, all it did was reduce the response time by 6ms. How should i solve this problem?