Step 1: Settings SettingsBTN.png > General management > Battery > Power Management

general managementbatterypower management

  • Adaptive battery > Turn OFF
  • Put unused apps to sleep > Turn OFF 

    • turn off settings

Step 2: Settings SettingsBTN.png > Device care > Memory > Apps to exclude from cleaning > Add apps > WhatsApp Service > Add

memoryexcluded appsadd appsselect apps to addapps added

Step 3: Settings SettingsBTN.png > Apps > WhatsApp Service > Mobile data > Allow background data usage & Allow data usage while Data saver is on > Turn ON

  appswhatsapp servicemobile dataallow settings on

Step 4: Hide app on the home screen

  1. Swipe up to open the App Drawer from the home screen
  2. Tap the three dots on the top-right edge of the screen
  3. Home screen settings > Scroll to the bottom and select Hide apps
  4. Select "WhatsApp Service"
  5. Done