Why is the old display server busy and the computer can be used to log in?

The mobile phone shows that it is connecting to the server and then the service starts, which may be a software problem. I suggest you:

1. Check whether the latest third-party software is installed and try to uninstall it.

2. Back up data (contacts, text messages, photos, etc. ) and try to restore the factory settings.

If the problem still exists, it is recommended that you take the machine, purchase invoice and warranty card to the local Samsung after-sales service center for testing.