Why Does my iPhone Screen Go Dim?

Episode 1583 (1:38:22)

Rose from Los Angeles, CA
 iPhone 8

Rose is having issues where her iPhone 8 screen just goes dim. Rich says that there is a sensor on her phone that will go dim if it gets obscured. Rose should clean her screen, or check that if her case is interfering with her phone's sensor. It may also be a failing sensor, so bring it to the Apple Store and have them run diagnostics to determine what's going on.