title: can I change version code from apk?
body: <p>I build an app for android and I already export it to apk, can I change its version code if it's already exported? How can I do that?</p>
  
  <p>I lost the backup code and I only have the update one and need to get back at first one, the only thing I can do is to increase version code from the apk backup and then my app will upgrade (while actually downgrade) automatically</p>