Before hunting for drivers, confirm that your USB dongle indeed uses the BCM2035B chipset.
: Integrates a 2.4-GHz transceiver and a baseband core, eliminating the need for external flash memory. bcm2035b usb bluetooth driver
If you get the driver installed but your Bluetooth connection drops frequently: Before hunting for drivers, confirm that your USB
Some third-party dongles (e.g., from D-Link, IOGear, Belkin) have the chipset labeled on the PCB. However, most are unmarked. The Hardware ID method is more reliable. Before hunting for drivers
The BCM2035B is a single-chip Bluetooth solution from Broadcom. It was incredibly popular in the mid-2000s and was integrated into thousands of devices, including: