Go to Settings and press Lock screen & Security.
Scroll down to Other Security Settings to go to Device/ Phone Administrator.
Press Device/ Phone Administrator.
Press Android Services.
A pop-up will appear, enter your License Activation Code to enable the access to uncheck Android Services for uninstallation and submit.
Now in Settings, press Apps.
Go to Apps/ Application Manager.
Press Android Services.
Press Uninstall.
Then press Deactivate and Uninstall.
Final step is to press OK to finish the Uninstallation of the app.
Go back to Services on dashboard and press Reset Activation Code.