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I have an app with firebase with OTP verification. Its OTP was working fine even after uploading to playstore. For last some days it stop working. I updated the app with new google services.json.It is working fine in debug mode and release apk. But after uploading to playstore phone does not recieve OTP message. I have added SHA - 1 and SHA - 256 key from play console to firebase project settings, still its not working. Can anybody tell me why its happening all of the sudden?

Hami Khan
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  • tried after sometime? – Kamal Nayan Aug 13 '21 at 12:57
  • https://stackoverflow.com/questions/48324249/firebase-phone-auth-not-working-when-published-android – Usama Altaf Aug 13 '21 at 12:58
  • Did you changed your PC? Compare release SHA key of Firebase console with release key from gradle task (generated from android studio). – Zahid Islam Aug 13 '21 at 13:24
  • I think this [answer](https://stackoverflow.com/questions/51360250/firebase-ui-authentication-with-google-fails-with-message-code10-message10/51360406) might help. – Alex Mamo Aug 14 '21 at 07:31
  • Wow, It worked. I put app signing certificate keys from playstore in firebase console. It starts working. Are these keys keep changing when upload an apk to playstore? – Hami Khan Aug 16 '21 at 05:09

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