siri os not answering after all settings

Hello luiza180,

Thank you for reaching out to Apple Support Communities.

We see you already reviewed the article titled If "Hey Siri" isn't working on your iPhone. Did you already check out the settings below? These steps could help:

"If Siri stops responding

1. Go to Settings.
2. Tap Siri & Search.
3. Tap Siri Responses. 
4. Tap Prefer Spoken Responses to hear Siri speak responses, even when Silent mode is turned on."

If the issue persists, can you provide a few more details? When did you first notice this? Which iOS version do you currently have? Also, what exactly happens when you invoke Siri?

Cheers!