Hi there! I understand your eFootball app is stuck on "download complete 0%" when trying to update, and you'd like to reboot and get the update going. Let's work through this step by step to get you back on the field.

First, just to clarify, you mentioned you tried everything—could you share what you’ve already attempted? This way, I can avoid repeating steps and focus on what might help next.

Meanwhile, here’s a straightforward sequence to try on your Android device (WebKit browser, Android 10):

1. Force close the eFootball app:
- Go to Settings > Apps > eFootball > Force Stop.
- Then restart the app and check if the update download progresses.

2. Clear cache and data:
- Settings > Apps > eFootball > Storage > Clear Cache and Clear Data.
- This will reset app data but won’t delete your account info because your progress is usually saved on KONAMI servers.
- Then open the app and try updating again.

3. Restart your device:
- Hold the power button and select Restart.
- Once your device is back on, open eFootball and see if it resumes the update.

4. Check your network:
- Ensure you have a stable internet connection, preferably Wi-Fi.
- Sometimes switching between Wi-Fi and mobile data can help trigger the download again.

5. Free up storage space:
- Low storage can halt updates. Check Settings > Storage and free space by removing unnecessary files or apps.

If you've already tried these or the issue persists after rebooting and retrying the download, we might look at advanced options like:

- Reinstalling the app (make sure your account is logged in so you don’t lose progress).
- Checking if your Android version or device has any restrictions on downloads or background data.
- Confirming whether KONAMI servers are operational (server issues can cause stalled downloads).

Would you want me to guide you through clearing data or reinstalling the app safely? Let me know your current state after rebooting. I’m here to help!