Firebase Authentication Not working in signed APK

Question

I\'m using Firebase Google Sign in. It works perfectly via USB debugging. But when I generate signed APK, it stops working. Its not able to sign in. Using it on Android 5.1

Answer 1

I had the same problem and I fixed the problem using these methods.

1. Complete app signing on your Play store console using these instructions How to enable Google Play App Signing

2. Go to your Firebase console Settings > General > Your apps > (Select your project) then add the SHA-1 from App signing certificate from your Play store. You can get SHA-1 by going to Release management -> App signing as show in this image.