Regarding IdeaHub factory reset, the following description error is ?

On a factory reset, you can choose to keep your current IP address in the web interface.

When the system is powered on normally, press and hold the reset button for 15 seconds to restore the factory settings.

During device startup, press and hold the reset button for 15 seconds to restore the factory settings.

After the factory reset, the local address book, call logs, meeting templates, history, etc. will be deleted and cannot be restored.