Hi there! Thanks for reaching out. I understand your Talkie app screen is black on your Kindle device running Android 9, and restarting hasn't helped. Let's work through this together.

First, I want to clarify a couple of things:
- Is the black screen happening just when you open the Talkie app, or does your entire Kindle screen go black?
- When you say it won’t refresh, do you mean the screen stays frozen and doesn’t respond to touches?

Assuming the black screen is specific to the Talkie app and the rest of your Kindle works fine, here are some steps you can follow to try and fix it:

1. Force Close and Restart the App:
- Go to your Kindle's Settings > Apps & Notifications > See all apps.
- Find and tap on the Talkie app.
- Tap Force Stop.
- Then reopen the app to see if the black screen clears.

2. Clear Cache and Data for the App:
- While still in the Talkie app info in settings, tap Storage.
- Tap Clear Cache first.
- If the problem persists, tap Clear Data or Clear Storage. (Note: this may erase app settings or saved data, so use this carefully.)

3. Check for App Updates:
- Open the Amazon Appstore or wherever you installed Talkie.
- Check if an update is available and install it.

4. Reinstall Talkie App:
- Uninstall the Talkie app completely.
- Restart your Kindle.
- Reinstall the app freshly from the app store.

5. Check App Permissions:
- In Settings > Apps > Talkie > Permissions,
- Ensure necessary permissions like Storage, Microphone, etc., are enabled.

6. Device Software Update:
- Ensure your Kindle’s Android OS is up to date.
- Go to Settings > System > Software Update and check for updates.

If after all this the problem continues, it may be related to specific bugs with the Talkie app on Kindle Android 9. There are some recent videos and guides showing solutions to similar black screen issues on Android devices, including disabling background auto-start restrictions or adjusting display settings 1 2.

Would you like me to guide you through any of these steps in more detail? Also, if you could let me know any changes you’ve already tried, that would be helpful!

Are you satisfied with the solution I provided so far?