How to remove a device and it's entities

Hya,

i have a mobile and upgraded it’s OS. so i had to reinstall HA on it.

But the server now have two devices with the same name, and i’m not being able to find where to remove the outdated device and it’s entities.

Any hint?

Thx in advance.

have you tried Configuration → Entities or Devices and looked to see if the multiple devices show up there? You can delete entities from that page.