Hello! I understand that you're encountering a persistent white screen when you try to log into EF Campus Connect. Let's work through this together.

Since you've already tried reinstalling the app and restarting your device, let's focus on a couple of other options that might help resolve this issue.

### Step 1: Clear Cache and Cookies
Sometimes, clearing the app's cache and cookies can help fix login issues. Here’s how you can do that:

1. Close the EF Campus Connect app completely.
2. Open your device settings.
3. Go to Apps or Applications.
4. Find and select EF Campus Connect.
5. Tap on Storage.
6. Tap Clear Cache and Clear Data.

After completing these steps, try logging in again.

### Step 2: Check Your Internet Connection
Ensure your device is connected to a stable internet connection. You can try switching between Wi-Fi and mobile data or even restarting your router if you're on Wi-Fi.

### Step 3: Update System Software
Sometimes, issues may arise from the operating system being out of date. Check if there are any updates available for your Windows OS:

1. Click on the Start button.
2. Go to Settings.
3. Click on Update & Security.
4. Select Windows Update and check for updates.

### Step 4: Try a Different Browser
If you’re accessing EF Campus Connect through a web browser, consider switching to a different one temporarily to see if the issue persists.

If none of these options resolve the white screen issue, we may need to escalate to ensure everything on the server side is functional. You can also reach out to our support team directly at [email protected] for further assistance.

Are you satisfied with the solutions I provided? If the issue remains unresolved, we can look for further guidance!