Google has kept it really simple to setup and verify phone number with Google Allo, but if you’re still having trouble verifying phone number with Allo, here are a few quick tips to resolve the issue and make sure that nothing is wrong on your part:

  1. Make sure you entered correct Country code and Phone number.
  2. Check that you’re connected to internet.
  3. Try switching between WiFi and 3G/4G Mobile data and see if either of them gets you through setup process.
  4. Make sure you’ve good cell signal, because you won’t be able to receive verification code by SMS if your cell signal is weak.
    └ Try sending yourself a SMS to verify that you’re in good signal and SMS messages are reaching your device.
  5. If you’re unable to get verification code by SMS, try the CALL ME button on verification screen to get the code by call.
  6. Quit & restart Google Allo app and try again.
  7. Uninstall & re-install the app.
  8. Restart your device.

That it. We hope the tips & tricks above help you resolve Google Allo issues on your device.

Happy Androiding!