title: Device still has the old apk
body: <p>I installed my app apk into my device and now when ever I try to install new apk, somehow the old apk is installed again. I deleted the apk file from memory card and unistalled the app and cleared data and cache, but somehow some of the old apk data is saved in memory card that I can not clear and is appearing every time I install new apk.  So when I go in and delete all the old files and open the new one it is still prompting me that it will save user data which means some where it is still storing something. </p>
  
  <p>I am really confused about this problem, please help me finding solution? </p>