Turn on Samsung Phone Notification Settings

How to configure your notifications:
  1. Navigate to your phone’s Settings > Notifications > Apps Notifications > Turn on Trẻ em JusTalk
  2. Navigate to your phone’s Settings > Battery > Background usage limits > Never auto sleeping apps > Select Trẻ em JusTalk
  3. Enter background mode > Tap on Trẻ em JusTalk icon > Select Keep open

 

If the above steps still do not work, you can follow the steps below:
Open Good Lock > Tap on MultiStar > Turn on Multi Focus > Trẻ em JusTalk

 

Follow the steps above and you will be notified when you receive a message.