Just Like Moto G 3rd Generation , Moto G4 Plus also comes with a hidden LED light . Although We already have Moto Display , which is an alternate to Led light .
So if you still want to enable LED light in Moto G4 Plus , You can follow this Guide on How to enable LED in Moto G4 Plus -
1. Moto G4 Plus : Unlocked , TWRP recovery Installed and Rooted .
Steps : How to enable LED in Moto G4 Plus -
Step 1. Go to Play store and Download Moto LED Application .
Step 2. Install the Application and Grant access with superuser .
Step 3. Configure the application as per requirements .
Step 4. The LED will lit up only while charging .