How to disable / Remove reCaptcha in firebase phone-auth (OTP) android?

 Solution

1. Enable Android Device Verification. Link below: - 

https://console.cloud.google.com/apis/library/androidcheck.googleapis.com

 2. Then add SHA256 in your Firebase Project and update your JSON 

 3. Firebase Project Settings > App check > and Register firebase project in SafetyNet 

4. Those who use 'App signing by Google Play', add the SHA-1 provided by Google Play