How to update an existing application without a keystore?

Question

Android

I have an android app uploaded to the play store, I want to download and update it. The problem is that I lost my keystore and don't want to delete the current one and upload a new one. So is there a way to update an existing application without a keystore?

Answer 1

What is a play store?
Google Play, for example, doesn't allow you to update an app if it's not signed, or if it's signed with a different key.
You need to sign the application only with the key that was used to sign the previous versions.
So the answer is there is no such way.