Firebase Authentication Not Working in Signed APK

Firebase Phone Authentication not working after creating a signed APK

After uploading the application to google play store, you have to update the SHA-1/SHA-255 fingerprint in firebase. You'll find the SHA-1/SHA-255 in play store as given.

1. Navigate to the Google Play Console and login
2. Choose the application you are signing
3. Go to Release Management > App Signing
4. Copy /Download the SHA-1 or SHA-256 certificate fingerprint from the App signing certificate section

Now, add the SHA-1/SHA-255 to the firebase and your app will be back again.

Firebase Phone Auth not working in APK Release mode

Found the solution

Yes I added SHA-1 Key but I came to know that SHA-1 for debug and release mode are separate and this answer is solution

Firebase Authentication is not working after signed APK generation (Google sign in)

You need to add the SHA1 of the production certificate in Fireabase.
Check this link

firebase authentication (Access is denied) generate release signed APK

solved with this video,
thanks internet.

this link

i was wrong to add SHA certificate fingerprints into my firebase console.
now i can generate release signed APK.

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