Not sure why it wont take pictures

I just got a Mini-2mp-Plus Ov2460 from amazon and im trying to set it up with my arduino uno r3, i have set up the memory saver file following the tutorial however even with a day or so of troubleshooting i have yet to have the camera take a picture, when i use the app to take a photo it just sends some data and nothing comes back. Also the app never tells me anything other than com is open. If anyone has had a similar problem or knows how to fix it anything will help