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      Phone Not Receiving OTP on iPhone or Android

      You’re trying to sign in or verify your identity but are not receiving the OTP (One-Time Password) via SMS on your iPhone or Android device.

      Applies To

      • All users using SMS-based verification

      • iOS and Android mobile devices

      Possible Causes

      • SMS blocked by carrier or device settings

      • Do Not Disturb or Focus Mode is enabled

      • Poor mobile signal or airplane mode 

      • SMS filtering/spam protection apps

      Steps to Resolve

      1. Basic Checks

      • Ensure your phone has a strong mobile signal (not Wi-Fi only).

      • Confirm the phone number entered is correct and active.

      • Restart your phone to refresh network connections.

      2. Carrier and Device Settings

      • Check if SMS is working by having someone else send you a text.

      • Disable Do Not Disturb, Focus Mode, or Battery Saver.

      • Make sure Airplane Mode is turned off.

      • Remove or disable any third-party SMS filtering/spam apps.

      • Update your OS software to the latest version.

      3. iPhone-Specific Tips


      • Go to Settings > Messages > Blocked Contacts and ensure the sender is not blocked.

      • Check Settings > Screen Time > Communication Limits to ensure texts aren’t restricted.

      • Confirm iMessage is not interfering by turning it off temporarily.

      • Check for Potential Spam SMS Messages. This enables you to sort messages from people not on your contact list.
        • Enable Filter Unknown Senders:
          • Open the Settings app on your iPhone.
          • Go to Messages.
          • Scroll down and tap on Message Filtering.
          • Toggle on the Filter Unknown Senders option. 
        • Check for Unknown Senders:
          • Open the Messages app on your iPhone.
          • Tap on Filters in the top-left corner.
          • Select Unknown Senders to view messages from numbers not in your contact list. 
      •  Reset Network Settings (Last Resort):
        • If other troubleshooting steps fail, consider resetting your network settings in iPhone's settings.

      4. Android-Specific Tips

      • Open Messages > Spam & Blocked folder to check if the OTP went there.

      • Ensure Carrier Services and Google Messages are up to date.

      • Go to Settings > Apps > Messages > Permissions, and allow SMS permissions.

      • Clear App Cache: Clear the cache for the default SMS app (e.g., Google Messages). Go to Settings > Apps > Messages > Storage > Clear Cache.
      • Restart Your Phone: A simple restart can often resolve temporary glitches.
      • Reset Network Settings: This can resolve issues with your network configuration. Go to Settings > System > Reset Options > Reset Wi-Fi, mobile & Bluetooth.

      5. Request OTP Again

      • Wait at least 60 seconds before requesting a new OTP.

      Still Not Working?

      If none of the above steps resolve the issue:

      • Contact your mobile service provider and ask if SMS messages from short code 22395 are being blocked or filtered. Let them know you're expecting a One-Time Password (OTP) from this number and need to receive it.