I have my app's latest APK file and full source, and My app's private key of the keystore. But I lost my keystore file... so I cannot sign my app and update my app..
Anyone know the answer?
If you lost your keystore then there is no way that you can update the app in play sore( it will cause a signature error )! The only way is that you can create an app with a new package name upload it to store and remove the old app.