Medion USB Bluetooth Device. The required driver is for the device ' Bluetooth USB Cambridge Silicon Radio'. Very appreciate if you can provide the latest driver. Thank you in advance, Rafael. Aug 05, 2017 On a fresh install of Windows 7 all of these adapters work, some of them auto-install drivers and work fine. Others work fine on other other Windows 7 desktops with no issues. The problem is I have seen this happen to more than one system and I have seen no Microsoft Fixit in regards to Bluetooth on Windows 7. CSR Bluetooth Radio - Driver Download. Updating your drivers with Driver Alert can help your computer in a number of ways. From adding new functionality and improving performance, to fixing a major bug. * Vendor: Cambridge Silicon Radio Limited. Hi, I cant find a Bluetooth driver for my Cambridge Silicon Radios USB Bluetooth device. Here is the link to the shop I bought it off of: Computer Rep Cant find Bluetooth driver - Windows 10 Forums.