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I am having an issue with Firebase Phone Auth in a Cordova Android app. The Auth works fine if I deploy the release (signed) version onto my phone via command line, but when I download the same apk from the Play Store I get this error:

unknown error verifying number Error instance: com.google.firebase.auth.FirebaseAuthException Error code: ERROR_APP_NOT_AUTHORIZED

The only difference between working and not working is install from command line:

sudo cordova build android --release -- --keystore=<keystorepath> --storePassword=<storepassword> --alias=scrib-android --password=<aliaspassword> --gradleArg=-PcdvVersionCode=<versioncode>

vs downloading from Play Store.

Ronan Boiteau
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Jonathan Williamson
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1 Answers1

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This is addressed in this question: https://stackoverflow.com/a/44330035/8692150

Basically, after you upload the apk to Google Play, they create an additional "App Signing" SHA-1 that needs to also be added to your Firebase console settings.

Jonathan Williamson
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