.

frontend/src/screen/memory/elementry/GameScreenOne.js

@@ -9,10 +9,10 @@ import Countdown from '../../../constants/Countdown';
 
 const GameScreenOne = ({navigation}) => {
 
-    // useEffect(()=>{
-    //     const backHandler = BackHandler.addEventListener('hardwareBackPress', () => true)
-    //     return () => backHandler.remove()
-    // },[]);
+    useEffect(()=>{
+        const backHandler = BackHandler.addEventListener('hardwareBackPress', () => true)
+        return () => backHandler.remove()
+    },[]);
 
     const dispatch = useDispatch();