I lost my .keystore file?

Question

Ok folks.. long story short, I was developing on a computer that I no longer have access to. I was able to retrieve the source code, but not the .keystore file used to sign

Answer 1

It’s Possible now, After May 2017 you can Update your app if you lost your keystore or keystore password. You can not recover your lost keystore but you can replace keystore on playstore. Click here

App signing process:

You can upload APKs signed with the original app signing key before or after you opt in to app signing by Google Play.

If you’re starting to use Android App Bundles, you can test them in testing tracks while you use your existing APK in production. Here’s how the process works:

1. Sign your app bundle or APK and upload it to your Play Console.

2. Depending on what you upload, here’s how the signing process differs:

   • App bundle: Google generates optimized APKs from your app bundle and signs them with the app signing key.
   • APK signed with upload key: Google verifies and strips your signature from the APK, and then resigns the APK with the app signing key.
   • APK signed with app signing key: Google verifies the signature. Google delivers signed APKs to users.