I am trying to sign an app using the manual method found here http://developer.android.com/tools/publishing/app-signing.html#signing-manually
Our previous external developers have sent me three keystore files that I need for this (not sure why they would require three??). When going through the process of trying to sign my app I am prompted with a keystore password which I do not know (I'm trying to get this from them).
Is it possible for me to change this myself? I have the three keystore files but I'm not sure if this would have an effect as the app has already been signed and released to the store and I want to update the app rather than release a whole new one.
I know this question has been asked before I just wasn't sure if those answers directly applied to me as my app is already in the Google Play store and published