Right-click the in Device Manager and select Update driver .
TechSupportArchives Date: April 13, 2026 bcm2045a0 driver windows 11
: If the device still shows an error code 45, it likely means the hardware is not physically connected or the USB port is failing. Right-click the in Device Manager and select Update driver
Essentially, this is your Bluetooth hardware. Without the correct driver, Windows 11 will not recognize it as a Bluetooth device, leaving you unable to connect wireless headphones, keyboards, or mice. bcm2045a0 driver windows 11