lsusb | grep -i bluetooth hciconfig -a

BthPS3 is a Bluetooth driver that enables communication between your PS3 controller and your device. It's a crucial component for gamers who want to use their PS3 controllers wirelessly.

This directly addresses the missing host radio reference.

Before fixing the problem, you must understand the culprit.

Bookmark this guide. Share it with colleagues who stare blankly at the "bthps3" error. And the next time your Bluetooth vanishes, you will not panic—you will execute.