I am Pete, and I'll be happy to assist with your Galaxy J1 location services question today.
When the icon is flashing, this means that it is actively checking what your location is to update location based services.
You may have a location based app running in the background - try force-closing all apps and restart your phone.
Let me know if that helps?
Kindly rate my service 5 stars if my answer worked, or reply back if you need further assistance.
Try the following:
The Home key is the main button on the phone that takes you back to the home screen menu.
Ok, let me know how you get on.
If I can be of any further assistance just let me know at any time.