In a drastic switch from the previous S-line series, Samsung went with an ultrathin top bezel and the so-called “hole-in-active-area” design for last year’s Galaxy S10 models. For the surprise of many an S10 buyer, however, that also means that the LED light that used to bring us visual notifications about charging status or missed calls and messages in the Galaxy S9, was also gone.
Granted, there was a light ring animation around the in-display front camera area when you do face recognition and such, but it doesn’t serve other notification purpose by default. Eventually, Samsung updated its experimental Good Lock app with the EdgeLighting+ plugin that was intent to take on third-party solutions like the Holey Light or ARC Lighting applications from the Play Store that proliferated as a stopgap solution for visual notifications.
Samsung Galaxy S20 Ultra, S20 Plus and S20 smart notification light switch
- From Settings (app icon or cogwheel in notification bar), tap Display > Edge screen > Edge lighting.
- Tap Lighting style to customize the color, effects, width, transparency and duration of the Edge lighting.
- Tap Add keyword to configure a smart lighting effect triggered by specific text in notification titles and body.
- Tap Show Edge lighting to choose whether it replaces notification pop-ups when the screen is on/off/both.
- Tap Choose apps to pick those applications that can activate Edge lighting when a notification is received.
- Tap Done when finished.
Source: Phonearena