How do I make my Galaxy S3 phone screen turn off/on when i close/open my phone case?(brand is navor)

[GrellMichaelis]

I have a Samsung Galaxy S3 and I want to know if I can make my phone screen turn off when I close the case. My mother has a Samsung Galaxy TabA and she's able to close/open the case thing and it'll turn it off/on. I want to know if it's possible with my model

 

[Rukbat]

I don;t think the S3 has the capability natively. If you install Proximity Service it might work (if the case covers the proximity detector [at the top of the front, where you put your ear during a phone call] the screen should turn off).