This comprehensive guide explains what this error means and provides step-by-step methods to resolve it. What is the BCM2045A0 Driver?
Locate (usually listed under Other devices or Universal Serial Bus controllers ). Right-click the device and select Update driver .
The Bluetooth firmware embedded in the chip needs a specific companion file ( .hex or .bin ) loaded by the driver to operate, which might be missing.
Method 1: Update the Driver Automatically via Device Manager bcm2045a0 driver windows 11
Windows 11 does not include a generic driver for this specific Broadcom chip in its baseline installation media.
The BCM2045A0 driver for Windows 11 is a classic example of older hardware clashing with a modern OS. While Microsoft could have included it by default, the responsibility falls on end-users to source the correct Broadcom/OEM driver.
Identify your computer's exact make and model (e.g., Dell Latitude E6430, HP EliteBook 840 G3). This comprehensive guide explains what this error means
Run the downloaded .exe file to install the driver, then restart your PC.
Last updated: January 2026 – Tested on Windows 11 Pro 23H2 and 24H2 (Preview). Have a unique issue? Leave a comment below or consult the Broadcom community forums.
The string "BCM2045A0" is a hardware identification code for a specific Bluetooth controller manufactured by Broadcom. This chipset is built into millions of laptops, desktop motherboards, and USB Bluetooth dongles. It is especially common in older hardware from brands like HP, Dell, Lenovo, and Apple (via Boot Camp). Right-click the device and select Update driver
Select .
: Provide your computer's make and model so we can locate the exact manufacturer-approved Broadcom package.
The is a specific Bluetooth chip manufactured by Broadcom , often found in laptops and desktop Bluetooth adapters from brands like Dell, HP, Lenovo, and Asus. While this chip is a few years old, many users still rely on it. However, the move to Windows 11 often leaves this older hardware lacking a proper, native driver.
Once installed, your Bluetooth should work with headphones, mice, etc. Device Manager will show: (or similar) – driver provider: Broadcom, date: 2016 or later.