White screen or website is not displayed
If TheFlex shows only a white or blank screen on startup or when loading a page, follow the steps below to diagnose and fix the issue.
Step 1 – Check your WebView version
The most common cause is an outdated Android System WebView. Many modern web applications (e.g. SAP Fiori) require WebView version 80 or higher.
Where to check:
- In TheFlex: Settings → Device Information → WebView version
- In Android Settings: Apps → "Android System WebView" → App info → Version
Android 7–9 (Android N–P)
On Android 7–9, Google Chrome acts as the WebView provider instead of "Android System WebView". Update Google Chrome via the Play Store on these devices.
Step 2 – Update WebView
- Open the Play Store.
- Search for Android System WebView (or Google Chrome on Android 7–9).
- Install the available update.
- Restart the device and test again.
If no update is available in the Play Store:
- Check whether the Play Store is blocked by MDM or company policy.
- As a temporary workaround, the APK can be downloaded manually from a trusted source and installed via sideloading — make sure to select the correct architecture (arm64-v8a for modern devices, armeabi-v7a for older ones).
- Contact your IT administrator or our support team if you are unsure.
Step 3 – Check for other causes
If the WebView is already up to date and the problem persists, check for these additional causes:
| Symptom | Likely cause |
|---|---|
| Blank screen only on specific URLs | Content Security Policy (CSP) blocking scripts → see CSP article |
| Blank screen after TheFlex update | Clear app cache: Android Settings → Apps → TheFlex → Storage → Clear cache |
| Page loads on Wi-Fi but not on mobile data | Network/firewall restrictions |
| Blank screen with JavaScript errors in log | Check the app's built-in log viewer (Settings → Logs) |
Additional notes
- Devices with WebView below version 80 should be updated or replaced as soon as possible.
- See also: Requirements and WebView update