Hi there! I understand you're having trouble with the Home, Files & My buttons being greyed out on the TNAS mobile app on your Android device, and you also mentioned that Android system buttons are appearing in front of the app. Let's get to the bottom of this together.

First, could you confirm a couple of things for me?
1. Are you seeing this issue only in the TNAS mobile app, or are other apps affected as well?
2. Have you recently updated the TNAS mobile app or your Android system?
3. Is your TNAS device accessible normally through a web browser without issues?
4. Are you connected over Wi-Fi or mobile data when this happens?

Meanwhile, here are some basic steps to try in order to resolve the greyed-out button problem:

1. Restart the TNAS Mobile App:
- Completely close the app from recent apps and reopen it.
- Sometimes apps can glitch and a fresh start helps.

2. Clear Cache & Data:
- Go to Android Settings > Apps > TNAS Mobile.
- Tap "Storage" then "Clear Cache" and if needed "Clear Data" (Note clearing data may log you out).
- Relaunch the app and login again.

3. Check Overlay or System Button Interference:
- It sounds like your Android system buttons (soft keys) might be overlapping the app interface.
- Try disabling any apps that modify navigation buttons or screen overlays (such as third-party launchers or button customization apps).
- You can also check if "Display over other apps" permission is granted to any strange apps and disable it.

4. Update or Reinstall the TNAS Mobile App:
- Visit the official TerraMaster Download Centre or Google Play Store to get the latest version of the app.
- Uninstall and reinstall the app to ensure no corrupted files.

5. Check Network Connection:
- TNAS app requires proper communication with your NAS device.
- Make sure your phone is on the same network as the NAS (for local access) or that remote access settings are correct.
- Try switching between Wi-Fi and mobile data to check for network issues.

If after these steps the buttons remain greyed out and the Android system buttons continue to interfere, there could be a specific conflict with your device’s UI or Android version.

Let me know the info on the questions above and what you’ve tried so far. I can then help you dig deeper or suggest advanced configurations.

Are you comfortable trying the steps above right now?

The TNAS Mobile app window size pushes it's navigation buttons behind the android system buttons

Thanks for the extra detail! It sounds like the TNAS Mobile app’s navigation buttons are being pushed behind the Android system navigation bar—this is a common issue with certain Android devices and how apps handle the screen’s edge-to-edge display and system UI.

Here’s what we can try to fix or work around this:

1. Enable Full-Screen Mode / Immersive Mode for TNAS App
Some Android versions or devices allow apps or users to enable immersive mode, which hides the Android navigation bar temporarily to give the app more screen space.
- Check your Android Settings under Display > Navigation bar or System UI to see if you can enable full-screen gestures or hide the navigation bar while using specific apps.
- If available, enable full-screen gestures to replace virtual buttons and free up screen space.

2. Check TNAS Mobile App Update
TerraMaster periodically updates the TNAS mobile app to fix UI and compatibility issues. Confirm you have the latest version installed from the TerraMaster website or Google Play Store. The most recent versions include improvements for navigation bar handling8.

3. Adjust Screen Settings or Display Size
On some Android devices, changing the display size or font size (found under Settings > Display) can affect how apps render on screen and might prevent UI elements from hiding behind system buttons.

4. Use Third-Party Tools or Device Features
If your device supports third-party UI customization tools like Samsung’s Good Lock/NavStar or others, you might be able to hide the navigation bar or reposition it while using TNAS app9.

5. Contact TerraMaster Support
If none of these work and the problem persists, it’s possible the app needs a specific fix or workaround for your device model. Consider contacting TerraMaster support at [email protected] with your device model and Android version for tailored help.

To summarize, first try enabling full-screen gestures or hiding the navigation bar via your Android settings, then ensure your app is up to date. Adjusting display size can help as well. Let me know if you'd like steps on how to access these settings on your device or if you want help contacting TerraMaster support.

Are you okay with trying these suggestions?