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I developed an Android + Firebase app (authentication + Storage + database). While this in the tests on Android Studio + authentic smartphone and works perfectly. I posted last Tuesday and after I was in the store downloaded to test (as one of my possible users would) and when I tried to authenticate appeared the following error in the photo.
I have already updated the SHA-1 key in Firebase, the package name is correct in Firebase and Play Console.
Try to proceed as in the answer on this link: https://stackoverflow.com/questions/39144629/how-to-add-sha-1-to-android-application
– user149495
check this sh-1 setting Try to proceed as in the reply on this link.
– user149495
Sh1 configuration I think that solves
– user149495