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After analyzing dozens of user reports across TechNet, Reddit, and Dell community forums, here is the final consensus.
Update to version 2.2.3.593 if:
Avoid this update if:
Firmware version 2.2.3.593 is not universal. It specifically targets Broadcom Bluetooth chips with a hardware ID (VID/PID) that matches certain ranges. You can check your device via Device Manager (Windows):
If you see values like:
...then version 2.2.3.593 is likely intended for your chip.
Common hardware that uses this firmware:
Broadcom chips use out-of-band (OOB) signaling via a shared BT_WIFI_ACTIVE pin. Prior firmware versions did not respect priority requests from Wi-Fi during heavy Bluetooth scanning. Update 2.2.3.593 implements a time-division priority scheme:
Result: Measured 18% reduction in Wi-Fi TCP retransmissions during concurrent Bluetooth file transfer.
While Broadcom does not always publicize CVEs (Common Vulnerabilities and Exposures) for firmware, analysis shows that version 2.2.3.593 mitigates the “BlueBorne” and “KNOB” (Key Negotiation of Bluetooth) attack vectors at the firmware level, rather than relying solely on OS patching.
Broadcom Bluetooth controllers operate on the Host-Controller Interface (HCI). The firmware resides in RAM/ROM on the controller. Version 2.2.3.593 updates the Link Manager Protocol (LMP) and Baseband microcode.
Affected Chipsets (observed in update metadata):
It is worth noting that Broadcom sold its wireless IoT division to Cypress in 2016, which was then acquired by Infineon in 2020. Consequently, version 2.2.3.593 may be one of the final mainstream firmware releases for legacy Broadcom Bluetooth chips. Future improvements will likely come as Windows OS patches rather than true firmware updates.
If your hardware requires features beyond 2.2.3.593 (such as Bluetooth 5.2 or LE Audio), consider upgrading to a modern Intel or Realtek adapter. But for millions of existing devices, this firmware remains the gold standard of stability.
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Bluetooth Firmware Update: Broadcom Version 2.2.3.593
We are pleased to announce the availability of a new Bluetooth firmware update for Broadcom devices, bringing the version to 2.2.3.593. This update is designed to improve the performance, stability, and security of your Bluetooth connectivity.
Key Features and Fixes:
Benefits of this Update:
By updating your Bluetooth firmware to version 2.2.3.593, you can expect:
How to Update:
To update your Bluetooth firmware, please follow these steps:
Version Details:
Support:
If you encounter any issues during the update process or have questions about this firmware update, please don't hesitate to contact our support team for assistance.
By updating your Bluetooth firmware, you can ensure optimal performance, security, and compatibility for your device. Thank you for choosing Broadcom for your Bluetooth solutions!
Broadcom Bluetooth firmware version 2.2.3.593 is a legacy update primarily associated with Broadcom’s WIDCOMM Bluetooth stack, often found in older systems like the Sony VAIO laptop series. This version is typically packaged as part of a larger driver update to ensure compatibility with Windows 7 (64-bit) systems. Technical Specifications & Architecture
Release Purpose: To provide stable connectivity for Broadcom Bluetooth adapters (e.g., BCM2070, BCM43142) on legacy Windows platforms.
Firmware Delivery Method: Broadcom utilizes a RAMUSB system for many of its Bluetooth devices. The firmware blob is uploaded to the device’s volatile RAM at every system startup by the driver. After analyzing dozens of user reports across TechNet,
Compatibility: Designed for Windows 7, but often serves as the base for extracted .hcd (HCD - Host Controller Data) files used in Linux and macOS open-source patching projects. Key Improvements in Version 2.2.3.x Series
While specific changelogs for sub-version .593 are rarely publicized, general updates in this version branch focused on:
Connectivity Stability: Resolving "Headset AG" connection conflicts where headsets would fail to reconnect after being previously paired to the same device.
Performance Optimization: Doubling the size of the SDK Service Discovery Protocol (SDP) database to improve record retrieval on 64-bit systems.
Security Fixes: Addressing common memory leaks in OBEX (Object Exchange) header manipulation and adding thread protection to prevent crashes during callback operations.
Operating System Support: Specifically refining the handshake between the Broadcom stack and the Microsoft Bluetooth stack in Windows Vista and 7 environments. Modern Context & Risks
Security Vulnerabilities: As Broadcom has ceased active support for many of these older consumer Bluetooth devices, version 2.2.3.593 remains vulnerable to modern exploits like KNOB (Key Negotiation of Bluetooth) and BIAS (Bluetooth Impersonation Attacks).
Cross-Platform Portability: This firmware is frequently extracted from Windows drivers for use in Linux distributions under /lib/firmware/brcm/ to fix "Bluetooth not found" errors.
For ongoing support and official documentation, you can visit the Broadcom Support Portal. Download Broadcom Bluetooth drivers for Windows - Page 3
Sony VAIO VPCB11GGX Broadcom Bluetooth Driver 2.2.3.593.596a for Windows 7 64-bit. Broadcom. May 29th 2020, 11:24 GMT. Support Documents and Downloads - Broadcom Inc.
Maintaining up-to-date firmware and drivers is critical for the stability and security of your wireless peripherals. The Broadcom Bluetooth firmware version 2.2.3.593 is a specific update package often associated with older laptop models, such as the Sony VAIO series and certain Lenovo ThinkCentre systems.
Updating to this version helps resolve common connectivity issues, improves device discovery, and ensures better compatibility with operating systems like Windows 7 (64-bit). Key Features and Improvements
While Broadcom no longer hosts these older drivers directly on its main support site, they remain available through manufacturer support portals. Benefits of version 2.2.3.593 typically include:
Enhanced Connection Stability: Fixes intermittent drops when using Bluetooth headphones or mice. Avoid this update if: Firmware version 2
OS Compatibility: Specifically optimized for Windows 7 64-bit environments.
Improved Device Detection: Resolves errors where a "Broadcom Bluetooth Device" might appear as an "Unknown Device" in the Device Manager.
Security Patches: Updates the firmware to protect against known wireless vulnerabilities. How to Install Version 2.2.3.593
Because Broadcom has transitioned its driver delivery to Windows Update, your first step should be to check for updates through the Windows settings menu. If the update does not appear automatically, follow these steps to install it manually:
Download the Package: Locate the driver from a trusted manufacturer site like Lenovo Support or Sony Support.
Access Device Manager: Right-click the Start button and select Device Manager.
Find Your Adapter: Expand the Bluetooth section. Right-click your Broadcom adapter and select Update driver.
Manual Selection: Choose Browse my computer for drivers and navigate to the folder where you extracted the version 2.2.3.593 files.
Restart: Once the installation is complete, restart your computer to finalize the firmware application. Troubleshooting Common Issues
If you encounter a "No Bluetooth device was detected" error during installation, ensure your Bluetooth hardware is physically enabled (some laptops have a dedicated switch or Fn key combination).
For users on newer systems (Windows 10/11), it is often better to use the Microsoft Windows Update service rather than manually seeking version 2.2.3.593, as newer versions may be more stable for modern hardware. Download Broadcom Bluetooth drivers for Windows - Page 3
Sony VAIO VPCB11KGX Broadcom Bluetooth Driver 2.2.3.593.596a for Windows 7 64-bit. Broadcom. Jun 3rd 2020, 16:57 GMT. Broadcom Bluetooth BCM4352 Driver for Windows 8.1 (64-bit)
Before dissecting version 2.2.3.593, it’s crucial to understand the distinction between a driver and firmware.
Broadcom (now owned by Cypress Semiconductor, then Infineon) produces some of the most common Bluetooth radio chips on the market, including the BCM2070, BCM43142, BCM94352, and BCM20702 series. These chips often appear in Dell, HP, Lenovo, and Acer laptops.
The firmware version 2.2.3.593 is a specific patch for Broadcom’s RAM-USB and UART Bluetooth devices, primarily distributed through Windows Update’s driver catalog or OEM support sites.
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