Hi there! I understand that you're having trouble getting the FreeStyle Libre 3 app to start on your Android device. Let's see if we can sort this out together.

First, could you let me know if you’ve noticed any error messages when you try to open the app? Also, have you already tried any troubleshooting steps, like restarting your phone or uninstalling and reinstalling the app?

While waiting for your response, here are a couple of initial steps you can try:

1. Restart your phone: Sometimes, simply rebooting your device can resolve temporary issues with apps.

2. Clear the app cache: This can help to solve issues with how the app functions.
- Go to Settings on your phone.
- Tap on Apps or Applications.
- Find and select LibreLink (FreeStyle Libre 3 app).
- Tap on Storage.
- Select Clear Cache.

Let me know how that goes or if you’ve already tried these steps!