Hi there! I see you're having trouble signing into the Inmate Financial Services app. Let's work together to get you logged in smoothly.

Could you tell me a bit more about what's happening when you try to sign in? For example, do you see any error messages, or does the app just not respond? Also, is this your first time logging in, or were you able to access your account before?

While I wait for your details, here are some initial troubleshooting steps specific to your WebKit browser on Android 15 that often help with app login issues:

1. Check Username and Password: Make sure your login credentials are correct, paying special attention to capitalization and any special characters.

2. Use 'Forgot Password' to Reset: If you’re unsure about your password, try the ‘Forgot Password’ feature in the app to reset it through your registered email.

3. Clear App Cache and Data: Sometimes, cached data can cause login problems. Go to your device Settings > Apps > Inmate Financial Services > Storage > Clear Cache and Clear Data.

4. Restart Your Device: A simple restart can refresh the system and network connections.

5. Update the App: Ensure your app is up to date through the Google Play Store, since older versions may have issues logging in.

6. Check Network Connection: Confirm your internet connection is stable. You could toggle airplane mode on and off or switch between Wi-Fi and mobile data.

If you have already tried any of these steps or see any specific error messages, please let me know. That way, I can guide you through the next steps or deeper troubleshooting.

Are you okay to try these and tell me what you see?