title: How to disable reCaptcha in firebase phone-auth (OTP) android?
body: <p>I've updated the firebase library recently and didn't change anything else.</p>
  <pre><code>  implementation 'com.google.firebase:firebase-auth:20.0.1'
    implementation 'com.google.firebase:firebase-messaging:21.0.0'
    implementation 'com.google.firebase:firebase-storage:19.2.0' 
    implementation 'com.google.android.gms:play-services-auth:19.0.0'
  </code></pre>
  <p>but whenever a user tries to signup, a Recaptcha is showing for a few seconds and then sometimes redirects to a web browser (CustomChromeTab) after that OTP is received from firebase auth. It takes about 15-30 seconds. How to prevent the Recaptcha? However, I added the SHA1 and SHA256 in the firebase console and have not changed the code. Thanks.</p>
  <p>Here is the screenshot of the captcha verification process:</p>
  <p><a href="https://i.stack.imgur.com/vQt9B.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vQt9B.png" alt="enter image description here" /></a></p>