This Broadcom Bluetooth chipset is often not correctly install, or not installed at all mainly due to appearing in the device manager in Windows as nothing but the chipset name: BCM20702A0.
Download drivers for Fujitsu Synaptics USB Human Interface Device input devices (Windows 7 x64), or install DriverPack Solution software for automatic driver download and update. Note:. Original: This is the original software/driver released with the computer. It is current and recommended for use. Updated: This software/driver is newer than the original version. It replaces the original software and is recommended for use. Archive: This software/driver has been replaced with an updated version. It is no longer current.
. Updated: This software/driver is newer than the original version. It replaces the original software and is recommended for use. Archive: This software/driver has been replaced with an updated version. It is no longer current. Fujitsu does not provide support for the installation or use of Archive software/driver downloads. Fi Series Software Downloads page. IMPORTANT NOTICE. It has recently come to our attention that certain websites are using “Fujitsu” and “ScanSnap” names without our permission, apparently stating that they are providing product information and software downloads.
The Broadcom BCM20702A0 chipset is used on a vast amount of laptops, USB Dongle adapters and much more. Hopefully the correct device driver below will fix your issues, and as always backup your system and files before attempting to install any new drivers.
Another thing that will deactivate/ uninstall this driver is Windows update especially in Windows 10 and late releases. Reinstalling the driver will fix the issue.

Below are drivers for Thinkpad and HP Laptops also a generic driver that might cover all of them.
If the device is showing a code 10 error follow the Code 10 Error guide.
Also this chipset does have issues working on Hackinosh setups, there is a Kext support that we will add below.
Lenovo device ids:
USBVID_0A5C&PID_21E6&REV_0112
USBVID_0A5C&PID_21E6
Fujitsu Usb Devices Driver Download For Windows 10
Extract the zip file to your desktop or a location that you can delete after the install. After the files are extracted run the setup.exe as an administrator.