Hi! I understand that you're having trouble receiving the login passcode from the SmartLife app. Let’s work through this together to get things back on track.

First, just to clarify, are you not getting any passcode at all after requesting it, or is the app showing an error message? Also, are you trying to log in via email or phone number? This info helps me tailor the best solution for you.

Meanwhile, here are some steps to try that often fix this kind of issue on Android 10 devices like yours:

1. Check Your Internet Connection: Ensure you have a stable Wi-Fi or cellular connection, as passcode delivery depends on that.

2. Check Spam/Junk Folder: Sometimes SMS or email with verification codes might land there.

3. Restart the App and Device: Close the SmartLife app completely and restart your phone. This may clear temporary glitches.

4. Update or Reinstall the App: Make sure your SmartLife app is updated to the latest version from the Google Play Store. If it is, try uninstalling and reinstalling the app to clear any corrupted data.

5. Verify Account Info: Double-check if the email or phone number you entered is correct and registered with SmartLife.

6. Request New Passcode: On the login page, try tapping “Forgot password” or “Request new code” to trigger a fresh passcode.

If none of these work, there could be an account or server-side issue. Sometimes, there’s a conflict if your email address is used in multiple related apps (like Tuya), so creating a new account with a different email can help as a test.

Would you like me to guide you through these steps one by one? Or do you have any more details about the messages or errors you see when trying to get the passcode?