title: Android Studio doesn't show my sony xperia tipo
body: <p>Android studio doesn't show my device to debug apps. Everything is installed and working properly except android studio. Adb driver is installed and i tried apkinstaller software, it show my device. </p>
  
  <p>My device api level is 15 and api installed in android studio is 21. Any one have idea may be due to change of api level android studio is not showing my device or something else.
  i already tried these posts which was posted on stackover</p>
  
  <p><a href="https://stackoverflow.com/questions/16596877/android-studio-doesnt-see-device">Click here</a></p>
  
  <p>Am i missing something?</p>