If no self help troubleshooting will not help then look to a Samsung Service Centre and it arrange to have your phone sent to Samsung.
^ The above link is for UK customers. If your in another region then use Google Search to look for the appropriate Samsung Repair Options for your own Region.
If I can be of any further help then please don't hesitate. Take care. 😎
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "