Android App Refuses To Launch On My Phone

Every time I build or build & run then install the game to my phone I get a black screen and then the game will close after a few seconds and return to my home screen. I need help here because I’ve tried many different player settings but nothing seems to work. I am running android 4.1.2 and my phone is an HTC One SV. I also have installed the developer tools and packages for 4.1.2 in the Android SDK Manager. I am using Unity 4.3 and there are no console errors. I also have all the scenes I want added to the build settings. What am i doing wrong?! Please help me!
Thanks so much.

Awesome I didn’t know about the monitor program until now. It appears as though Unity is exporting a corrupted .apk and my phone is expecting unity 4.3.0f4 when my actual unity version is 4.3.1f1. I’ll try to re install unity 4.3.0f4 and see if that fixes anything. Thanks for the suggestions and I’ll keep you guys posted

I upgraded to windows 10 and that solved my problem. i know it is not the most convinient solution but hey it worked for me