Curious, she fired up Wireshark with a Bluetooth USB dongle in monitor mode. Between normal pairing frames, the new firmware was quietly broadcasting tiny packets to a MAC address ending in :00:11:22 — the Broadcom OUI. Not pairing. Not audio. Just tiny pings: 02 03 04 05 06 07 08 09 . Then silence.
Broadcom does not typically distribute firmware directly to consumers. Instead, the firmware is bundled within driver packages from OEMs (Dell, HP, Lenovo, ASUS) or via Windows Update. bluetooth firmware -broadcom- update version 2.2.3.593
Before discussing version 2.2.3.593, it is crucial to understand the foundation. Broadcom (now owned by Avago Technologies and part of Cypress Semiconductor’s legacy) is one of the world’s leading manufacturers of Bluetooth chipsets. You will find their controllers inside: Curious, she fired up Wireshark with a Bluetooth
: This update serves as a stability patch to resolve device detection issues, improve pairing reliability, and maintain compatibility with newer Bluetooth peripherals. Not audio