Even a successful update to version 2.2.3.593 can cause side effects. Here is what to do if things go wrong.
is a maintenance release for Broadcom-based Bluetooth modules integrated into OEM hardware and standalone USB dongles. This update focuses on enhancing link-layer stability, addressing protocol vulnerabilities, and improving coexistence with 2.4 GHz Wi-Fi signals in high-density environments. 2. Key Enhancements Link Management Protocol (LMP) Stability: bluetooth firmware -broadcom- update version 2.2.3.593
It is worth noting that Broadcom sold its wireless IoT division to Cypress in 2016, which was then acquired by Infineon in 2020. Consequently, for legacy Broadcom Bluetooth chips. Future improvements will likely come as Windows OS patches rather than true firmware updates. Even a successful update to version 2
Are you attempting to install this firmware on a or another system, and are you encountering a specific connection error ? Consequently, for legacy Broadcom Bluetooth chips
Includes foundational fixes for vulnerabilities discovered in older Bluetooth stacks, such as KNOB (CVE-2019-9506) BIAS (CVE-2020-10135)
While Broadcom typically packages these updates with OEM-specific configurations, the 2.2.3.x branch generally focuses on: Enhanced Connectivity Stability:
3% of laptops required re-pairing of all devices after firmware load due to link key invalidation (expected behavior per Bluetooth specification, v2.2.3.593 enforces new LTK derivation).