Hi there! I understand your NuMi app isn’t turning on or starting up on your Android 10 WebKit device. Let’s see how we can get it working again.

To help me clarify, when you say it won’t turn on, do you mean:
- The app doesn’t open at all when you tap it?
- The app opens but then crashes or shows an error message?
- Or something else?

In the meantime, here are some step-by-step solutions to try for the app not starting:

1. Force Stop and Clear Cache
- Go to your phone’s Settings > Apps > find NuMi.
- Tap Force Stop to completely close the app.
- Then tap Storage and select Clear Cache.
Clearing the cache removes temporary files that might cause loading issues.

2. Restart Your Phone
- Hold down the power button on your phone. Select Restart or Reboot.
Restarting refreshes system processes, which can help apps start properly.

3. Update the App
- Open the Google Play Store, search for NuMi, and check if an update is available.
Running the latest version ensures compatibility and bug fixes.

4. Reinstall the App
- Uninstall NuMi completely, then reinstall it from the Play Store.
This can fix issues from corrupted files.

5. Check Internet Connection
- NuMi requires internet. Verify you have a stable Wi-Fi or mobile data connection when opening it.

If you’ve tried steps like clearing cache, restarting, or reinstalling already, let me know so I don’t repeat those. Also, mention if you get any error messages or how exactly the app behaves when you try to start it.

We’ll get this sorted out together! Are you able to try any of these steps now?