Hi! I understand you're seeing a white screen in the BOO app on your Android 10 device and are unable to log in, even though you do receive notifications. Let's work together to get this sorted out.

To start, could you please tell me:

- When did this white screen issue begin? Was it after an app update, device update, or out of the blue?
- Have you tried closing the app completely and reopening it?
- Have you attempted restarting your device yet?
- Did you try clearing the app cache or data?
- Are you connected to Wi-Fi or mobile data, and is your internet connection stable?

These details will help narrow down the cause. Meanwhile, here are some steps you can try:

1. Force close and reopen the app:
- Go to your device Settings > Apps > BOO app > Tap "Force Stop"
- Then open the app again and see if the white screen persists.

2. Clear BOO app cache:
- Settings > Apps > BOO > Storage > Tap “Clear Cache”
- Check if the app loads normally after.

3. Clear BOO app data (this will log you out and reset app data):
- Settings > Apps > BOO > Storage > Tap “Clear Data”
- Then try logging in again.

4. Restart your device:
Sometimes a simple reboot helps clear temporary glitches.

5. Check your internet connection:
- Switch between Wi-Fi and mobile data to see if the issue is network-related.

6. Update the app:
- Visit Google Play Store and check if there’s an update available for BOO.

If you've already tried these or the problem remains, let me know, and we can explore some advanced fixes like reinstalling the app or checking for conflicts with other apps.

Are you able to try these and share what happens? That way I can assist you further!