I have to upload a new application, It\'s just the design that\'s a little different. Yesterday I generated the keystore file to sign application. Can I use the same?
Of course! You can use the same keystore file as many times you want. It's always better to use the same keystore file for all the applications you develop. That will help if you want to update or modify the application. At that time you need to sign your application with the same key.