BCM2045A0 is a specific hardware ID for Broadcom Bluetooth controllers often found in older laptops or USB dongles. When moving to Windows 11, users frequently see this device listed with a yellow exclamation mark in Device Manager because the operating system fails to automatically assign a compatible driver. What is the BCM2045A0 Device?

Q3: Why does my BCM2045A0 driver work after sleep but not after a cold boot?

Installing the BCM2045A0 driver on Windows 11 is a relatively straightforward process. Here are the steps:

BCM2045A0

Here’s a ready-to-use forum-style post to help others (or yourself) find and install the driver on Windows 11 . This chip is commonly found in Bluetooth/Wi-Fi combo cards (e.g., in older Dell, HP, or Lenovo laptops).

BCM2045A0

The is a generic hardware identifier for a Broadcom Bluetooth chipset. If you see this in your Windows 11 Device Manager under "Other Devices" with a yellow exclamation mark, it means Windows recognizes the hardware but lacks the specific driver to make it work. Common Solutions for Windows 11 1. Use Windows Update (Recommended)

Device Manager > Details tab

If you are searching for a specific driver version, check your device's Hardware ID in : USB\VID_0A5C&PID_2045 (Standard Broadcom) USB\VID_0BB4&PID_0306 (Common in HTC/Vive link boxes) USB\VID_0A5C&PID_21FF (Common in Apple/Bootcamp setups) BCM2045A0 Drive is unavailable - VIVE Forum

How do you know if your system is affected? Look for these symptoms:

  • BCM2045A0

    The is a specific model of Broadcom Bluetooth controller often found in older laptops (like the Dell Latitude or Lenovo ThinkPad ) and VR hardware like the HTC Vive Link Box . When you see this label in your Windows 11 Device Manager under "Other Devices" with a yellow exclamation mark, it means Windows recognizes the hardware but lacks the specific driver to make it work.