Bluetooth Firmware -broadcom- Update Version 2.2.3.593 [work] May 2026

Bluetooth Firmware Update: Broadcom Version 2.2.3.593 Explained

In the ever-evolving world of technology, firmware updates play a crucial role in ensuring that devices function optimally and securely. One such update that has garnered attention in recent times is the Bluetooth firmware update for Broadcom devices, specifically version 2.2.3.593. This article aims to provide an in-depth look at what this update entails, its significance, and how it impacts users.

Understanding Bluetooth Firmware

Before diving into the specifics of the Broadcom Bluetooth firmware update version 2.2.3.593, it's essential to understand what Bluetooth firmware is. Firmware is a type of software that is embedded in a hardware device, controlling its functions. In the case of Bluetooth devices, the firmware enables wireless communication between devices, allowing them to exchange data over short distances.

Broadcom and Bluetooth Technology

Broadcom is a leading semiconductor and software company that provides a wide range of solutions for wireless communication, including Bluetooth technology. Their Bluetooth chips and firmware are used in a variety of devices, from smartphones and laptops to smart home devices and automotive systems. Broadcom's Bluetooth solutions are known for their reliability, performance, and compatibility with various devices.

The Update: Version 2.2.3.593

The Bluetooth firmware update version 2.2.3.593 from Broadcom is a significant release that aims to improve the performance, stability, and security of Bluetooth devices. This update is designed to enhance the overall user experience by addressing various issues and adding new features.

Key Features and Improvements

So, what does the update to version 2.2.3.593 bring to the table? Some of the key features and improvements include:

1. Enhanced Security: The update includes security patches to protect against known vulnerabilities, ensuring that Bluetooth devices are less susceptible to hacking and data breaches.
2. Improved Connectivity: The new firmware improves the stability and reliability of Bluetooth connections, reducing the likelihood of dropped connections and improving overall performance.
3. Increased Compatibility: Version 2.2.3.593 enhances compatibility with various devices and operating systems, making it easier to connect and communicate with a wider range of devices.
4. New Features: The update may also include new features, such as improved audio streaming, enhanced device discovery, and better support for IoT (Internet of Things) applications.

How to Update to Version 2.2.3.593

Updating to the latest Bluetooth firmware version 2.2.3.593 is a relatively straightforward process. Here are the general steps:

1. Check for Updates: Users can check for firmware updates through their device manufacturer's website or through the device's settings menu.
2. Download the Update: Once the update is available, users can download it to their device.
3. Install the Update: The update can be installed using a simple installation process, which may involve restarting the device.

Benefits and Impact

The update to version 2.2.3.593 has several benefits for users, including:

1. Improved Performance: The update enhances the overall performance of Bluetooth devices, making them more reliable and efficient.
2. Enhanced Security: The security patches included in the update protect users from potential threats and vulnerabilities.
3. Increased Compatibility: The update ensures that Bluetooth devices can connect and communicate with a wider range of devices and operating systems.

Conclusion

In conclusion, the Bluetooth firmware update for Broadcom devices, version 2.2.3.593, is a significant release that aims to improve the performance, stability, and security of Bluetooth devices. With its enhanced security features, improved connectivity, and increased compatibility, this update is essential for users who want to get the most out of their Bluetooth devices. By understanding the importance of firmware updates and taking steps to update their devices, users can ensure that they are protected from potential threats and can enjoy a seamless and reliable Bluetooth experience.

Frequently Asked Questions

1. What is the latest version of Broadcom Bluetooth firmware? The latest version of Broadcom Bluetooth firmware is version 2.2.3.593.
2. How do I update my Bluetooth firmware to version 2.2.3.593? Users can update their Bluetooth firmware to version 2.2.3.593 by checking for updates through their device manufacturer's website or through the device's settings menu.
3. What are the benefits of updating to version 2.2.3.593? The benefits of updating to version 2.2.3.593 include improved performance, enhanced security, and increased compatibility with various devices and operating systems.

Additional Resources

For more information on the Broadcom Bluetooth firmware update version 2.2.3.593, users can visit the following resources:

• Broadcom's official website
• Device manufacturer's website
• Online forums and support communities

By staying informed and up-to-date with the latest firmware releases, users can ensure that their Bluetooth devices are running optimally and securely.

Here’s a draft text you can use for an update notice, release note, or internal IT announcement regarding the Broadcom Bluetooth firmware update to version 2.2.3.593:

Subject: Bluetooth Firmware Update – Broadcom (Version 2.2.3.593)

Summary:
A firmware update for Broadcom Bluetooth adapters is available, version 2.2.3.593. This release improves device stability and wireless connectivity.

Key Details:

• Component: Bluetooth Firmware
• Vendor: Broadcom
• Version: 2.2.3.593
• Type: Firmware update

What’s New / Improvements:

• Enhanced Bluetooth connection reliability
• Fix for occasional audio dropouts with Bluetooth headsets
• Improved low-energy (BLE) device pairing
• General security and stability fixes

Installation Instructions:

1. Download the firmware package for your specific Broadcom Bluetooth device.
2. Close any Bluetooth-dependent applications.
3. Run the installer or follow the manufacturer’s flashing instructions.
4. Reboot your system to complete the update.

Notes:

• Ensure your device is connected to power (if on laptop/notebook) before updating.
• Back up existing drivers if required.
• After update, re-pair Bluetooth devices if necessary.

Verification:
After installation, confirm the new firmware version in Device Manager (Windows) or System Report (macOS/Linux) under Bluetooth firmware properties.

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.

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. bluetooth firmware -broadcom- update version 2.2.3.593

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)

To help you put together a feature or documentation for the Broadcom Bluetooth firmware update version 2.2.3.593

, a structured breakdown is provided below. This template can be used for a release announcement, a patch note highlight, or a product feature summary. 🌟 Feature Overview

Broadcom has rolled out a maintenance and stability update for its Bluetooth stack, designated as version

. This release focuses on refining wireless handshakes, securing data transmissions, and resolving legacy driver handoff bugs to ensure a seamless wireless experience. 🛠️ Key Improvements & Highlights Enhanced Pairing Reliability

: Refined the initial device discovery and pairing handshakes to reduce drop-offs when connecting to smartphones, wireless headsets, and input peripherals. Power Management Optimization

: Improved low-power state transitions, ensuring that laptop batteries are preserved when Bluetooth devices are idle without causing wake-up lag. Audio Protocol Stability

: Resolved minor stuttering and packet loss issues associated with high-bitrate wireless audio profiles (A2DP). Legacy OS and Driver Compatibility

: Fixed edge-case installation bugs to prevent generic "Code 43" device failure errors during automated Windows updates. 📋 Technical Specifications Manufacturer Broadcom Inc. Firmware/Driver Version Connection Type RFCOMM Protocol TDI / L2CAP Primary Focus Stability, security patches, and hardware handshake fixes ⚙️ How to Update and Verify

To ensure you have this version active on a Windows machine: Automatic Search : Right-click the Windows Start button and select Device Manager . Expand the dropdown, right-click your Broadcom adapter, and choose Update driver Search automatically for drivers Manual Verification

: In the properties window of your Broadcom Bluetooth adapter, navigate to the

tab to review the LMP (Link Manager Protocol) and active firmware version numbers. Microsoft Support

toward software developers (focusing on protocols) or end-users (focusing on simple UX improvements)? Download Broadcom Bluetooth drivers for Windows - Page 151

Download Broadcom Bluetooth drivers for Windows - Page 151 - Softpedia.

What Bluetooth version is on a Windows device - Microsoft Support

The Broadcom Bluetooth firmware update version 2.2.3.593 is a specific driver and firmware package primarily associated with Sony VAIO and other legacy Windows laptops using Broadcom wireless chipsets

. This update is part of the maintenance cycle for the WIDCOMM Bluetooth stack, which facilitates communication between the operating system and Bluetooth hardware. Key Technical Details Target Devices

: Frequently paired with Sony VAIO (VPCB series) and certain Lenovo or Dell laptops using chipsets like the BCM20702 or BCM43142. Operating Systems

: Primarily designed for Windows 7 (64-bit), though it may be found in driver repositories for Windows 10. Functionality

: It provides the necessary "firmware blobs" (runtime images) that the controller requires to initialize and become functional. Update Purpose and Security

: Fixes common "Bluetooth not found" errors and connection drops by ensuring the hardware protocol (LMP) is correctly reported to the OS. Security Context : Broadcom has largely moved driver delivery to the Microsoft Windows Update service Vulnerability Risks

: Legacy versions of these drivers may be susceptible to known Bluetooth vulnerabilities like (CVE-2019-9506) or

(CVE-2020-10135). Users on modern systems should prioritize updates delivered through official manufacturer support sites or Windows Update. How to Verify and Update Download Broadcom Bluetooth drivers for Windows - Page 3 18 Jun 2020 —

The Broadcom Bluetooth firmware version 2.2.3.593 (often part of a larger package like 2.2.3.593.596) is a legacy update primarily designed for Windows 7 systems to stabilize hardware performance . It is most commonly associated with Sony VAIO notebooks but applies to various devices using Broadcom Bluetooth chipsets . Key Purpose & Fixes

The primary goal of this specific firmware update is to resolve connectivity instability .

Connection Stability: Fixes an issue where a Bluetooth device fails to maintain a steady connection with the computer .

Device Recognition: Ensures that the system correctly identifies and initializes Broadcom Bluetooth hardware .

Legacy OS Support: Specifically optimized for Windows 7 (32-bit and 64-bit) . Deployment & Availability

Original Distribution: This update was released around May 2010 as a utility for Sony-specific models such as the VAIO VPCB and VPCCW series .

Current Availability: Broadcom no longer hosts consumer Bluetooth drivers directly. Modern versions are distributed via the Windows Update service . For legacy firmware, users often rely on manufacturer support pages (like Sony or Lenovo) or community repositories like Broadcom-bt-firmware on GitHub . Bluetooth Firmware Update: Broadcom Version 2

Non-Windows Systems: For Linux or macOS users, this firmware is sometimes extracted from Windows drivers to enable functionality for RAMUSB-based Broadcom devices via patches like BrcmPatchRAM . Installation Guidelines (Windows) Preparation: Ensure all background tasks are closed.

Execution: Run the installer (e.g., BRFOTH-00225490-1040.EXE) and follow the on-screen prompts .

Reboot: A system restart is mandatory for the hardware to load the updated firmware during the next initialization . Security & Support Status

Since Broadcom has ceased active support for these consumer-level devices, systems running these legacy drivers may be vulnerable to modern security risks such as CVE-2019-9506 (KNOB) or CVE-2020-10135 (BIAS) . It is recommended to use these drivers only if hardware compatibility requires it .

Are you attempting to install this firmware on a Sony VAIO or another system, and are you encountering a specific connection error?

This report outlines the technical specifications and implementation details for the Broadcom Bluetooth Firmware Update, Version 2.2.3.593

. This specific version is most commonly associated with Broadcom Bluetooth adapters integrated into legacy laptop systems, such as the Sony VAIO VPCB series 1. Overview and Compatibility (often cited as 2.2.3.593.596a

in full driver packages) is a legacy firmware/driver release designed primarily for Windows 7 (64-bit)

environments. It belongs to the Broadcom WIDCOMM® Bluetooth software family, which provides the necessary stack for the operating system to communicate with Broadcom's hardware SoCs. Primary Hardware Targets: Broadcom BCM2070 and BCM2046 based adapters. Operating System Support:

Optimized for Windows 7; limited official support for newer versions like Windows 10/11, though it may function in compatibility mode. Deployment Method:

Historically distributed through OEM support portals (Sony, Lenovo) and now primarily available via Windows Update or third-party driver repositories. 2. Key Improvements and Fixes

While Broadcom typically packages these updates with OEM-specific configurations, the 2.2.3.x branch generally focuses on: Enhanced Connectivity Stability:

Resolves issues where Bluetooth devices (mice, keyboards, or headsets) would intermittently disconnect or fail to reconnect after system wake-up. Audio Profile Refinement:

Improvements to the A2DP (Advanced Audio Distribution Profile) to reduce latency and "stuttering" in Bluetooth audio streaming. Security Patching:

Includes foundational fixes for vulnerabilities discovered in older Bluetooth stacks, such as KNOB (CVE-2019-9506) BIAS (CVE-2020-10135)

, which targeted weak encryption and authentication in the pairing process. Peripheral Interoperability:

Improved support for Bluetooth 2.1 + EDR (Enhanced Data Rate) devices, ensuring better data throughput. 3. Technical Implementation

Broadcom USB-based Bluetooth devices frequently utilize a mechanism called

. This allows the firmware to be uploaded to the device "on-the-fly" by the driver during every system startup or wake-from-sleep cycle. Firmware Format: The update is often delivered as a

(Hex Code Download) file contained within the driver package. Verification:

Users can verify the update by checking the "Firmware Revision" in Device Manager. If the version appears as "4096," the firmware has likely failed to upload correctly and is running in a default, limited state. 4. Installation and Troubleshooting

For most users, this update is handled automatically. If manual installation is required: Release Notes - Support Documents and Downloads 10 Oct 2008 —

Informative Report: Bluetooth Firmware Update - Broadcom - Version 2.2.3.593

Introduction

This report provides an overview of the Bluetooth firmware update for Broadcom devices, specifically version 2.2.3.593. The update aims to enhance the performance, stability, and security of Bluetooth connectivity on devices equipped with Broadcom Bluetooth hardware.

Update Details

• Version: 2.2.3.593
• Vendor: Broadcom
• Device Type: Bluetooth Controller
• Release Date: [Insert Date]

Key Features and Changes

The version 2.2.3.593 update includes the following enhancements and fixes:

1. Improved Interoperability: Enhanced compatibility with a wide range of Bluetooth devices, ensuring seamless connectivity and communication.
2. Security Patches: Integrated latest security patches to protect against potential vulnerabilities and threats.
3. Performance Optimization: Optimized firmware for improved data transfer speeds, reduced latency, and enhanced overall performance.
4. Stability Enhancements: Resolved issues related to device disconnections, reconnections, and pairing.
5. Power Management: Improved power management capabilities to reduce power consumption and prolong battery life.

Technical Specifications

• Bluetooth Version: Bluetooth 5.0
• Controller Type: Broadcom BCM20702/20703
• Firmware Architecture: 32-bit ARM Cortex-M4

Benefits and Advantages

The updated firmware provides several benefits to users, including:

1. Enhanced Connectivity: Improved interoperability and stability ensure reliable connections to Bluetooth devices.
2. Increased Security: Latest security patches protect against potential threats and vulnerabilities.
3. Better Performance: Optimized firmware results in faster data transfer speeds and reduced latency.
4. Extended Battery Life: Improved power management capabilities help prolong battery life.

Installation and Update Instructions

To update the Bluetooth firmware to version 2.2.3.593:

1. Download the update package from the vendor's website or device manufacturer's website.
2. Follow the installation instructions provided with the update package.
3. Restart your device after installation to ensure the update takes effect.

Conclusion

The Bluetooth firmware update to version 2.2.3.593 for Broadcom devices brings significant enhancements to performance, stability, and security. Users can expect improved connectivity, increased security, and better overall performance. It is recommended to install this update to ensure optimal functionality and protection of your Bluetooth device.

Recommendations

• Users should regularly check for firmware updates to ensure their devices are equipped with the latest features and security patches.
• Device manufacturers should consider integrating this updated firmware into their products to provide customers with a better user experience.

Disclaimer

The information in this report is based on publicly available data and is intended for informational purposes only. The actual performance and benefits of the update may vary depending on the device and usage scenarios. Users should consult the device manufacturer's documentation and support resources for specific guidance on updating and troubleshooting their devices.

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.

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.

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:

• Enhanced device compatibility and pairing stability
• Improved data transfer speeds and reliability
• Strengthened security measures to protect against potential vulnerabilities
• Optimized power consumption for better battery life

Benefits of this Update:

By updating your Bluetooth firmware to version 2.2.3.593, you can expect:

• Seamless connectivity with a wider range of devices
• Reduced interference and disconnections
• Enhanced overall Bluetooth experience

How to Update:

To update your Bluetooth firmware, please follow these steps:

1. Ensure your device is connected to the internet.
2. Go to your device's settings menu and select "Bluetooth".
3. Check for available updates and follow the prompts to download and install the new firmware.

Version Details:

• Firmware Version: 2.2.3.593
• Release Date: [Insert Date]
• File Size: [Insert File Size]

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!

5.2 Linux Compatibility

The btusb kernel module did not initially recognize version 2.2.3.593’s HCI revision number. Users had to manually patch:

echo 0a5c 21e8 > /sys/bus/usb/drivers/btusb/remove_id
modprobe -r btusb
modprobe btusb

Workaround resolved in kernel 4.15+.

4. Security Patching

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.

Method 2: Manual Installation via OEM Support Site

If Windows Update does not offer 2.2.3.593, download it directly from your laptop manufacturer.

• For Dell users: Search for “Dell Wireless 1707 Bluetooth Driver” – versions released after June 2021 often bundle firmware 2.2.3.593.
• For HP users: Look for “HP Bluetooth Driver for Broadcom” with a version string containing 2.2.3.593.
• For Lenovo users: Check the Lenovo Vantage app or support site for “Bluetooth Firmware Update Utility.”

After downloading the .exe or .zip:

1. Disconnect all Bluetooth peripherals.
2. Disable your Wi-Fi (optional but reduces interference).
3. Run the installer as Administrator.
4. If the installer includes a separate “FW Update” tool, run that specifically.

3.2 CVE-2018-5383 (KNOB Attack)

Key Negotiation of Bluetooth (KNOB) attack forced entropy reduction of encryption keys to 1 byte. Broadcom firmware pre-2.2.3.593 accepted malicious LMP_encryption_key_size_req with values < 7 octets. The new firmware enforces a minimum key size of 7 (56 bits) for BR/EDR connections, rejecting negotiation attempts below that threshold.

8. Conclusion and Recommendations

5.1 Reported Regression: Apple Magic Trackpad 2

Following the update, users reported intermittent cursor freezes lasting 2–5 seconds on Windows 10 (v1709). Investigation revealed that the firmware’s new authentication frame check erroneously discarded valid encrypted HID report packets with slightly malformed MIC (Message Integrity Check). Broadcom issued a hotfix (2.2.3.600) for OEMs, but version 2.2.3.593 remains in the standard update channel.

Method 1: Windows Update (Recommended for Most Users)

Microsoft distributes this firmware via Windows Update as a “driver update,” even though it is technically firmware.

1. Go to Settings > Windows Update > Advanced Options > Optional Updates.
2. Look under Driver Updates for an entry containing:
   • “Broadcom – Bluetooth – [version number]”
   • “Bluetooth Firmware – Broadcom – 2.2.3.593”
3. Check the box and click Download & Install.
4. Critical: Do not interrupt power or disconnect any Bluetooth devices during the update. A reboot will be required.

5.3 Updated Windows Driver Incompatibility

Version 2.2.3.593 requires a corresponding driver stack update (Broadcom Bluetooth Driver v12.0.1.1010 or later). Mixing 2.2.3.593 firmware with an older driver (v12.0.0.920) results in HCI command timeout (Event ID 17 in System Log).