We use the “App Signing by Google Play”, so we don't have the private keys to sign our APK. So I guess our only alternative is to use the ....

Go to your Google Play Developer Console and open your app. · Inside your app, go to Setup -> App signing · Under the App signing, scroll down to ....

If yes, you should be able to reset your upload key by going to Release > Setup > App integrity, then going to the App Signing tab, then .... The idea with the Google Play Signing is that you don't have to keep the signing key on your machine anymore - it is managed by Google Play.

You .... Google Play Console's App integrity section with the 'Change app signing key' button highlighted. Next, select the Export and upload a key from Java Keystore ....