Install one of BrcmPatchRAM.kext or BrcmPatchRAM2.kext or BrcmPatchRAM3.kext depending on macOS version, never both.Īlso, install one firmware kext BrcmFirmwareData.kext or BrcmFirmwareRepo.kext, depending on installation location, never both.īrcmFirmwareData.kext: Most appropriate for bootloader injection. Note if you have an Apple MacBook/iMac/Mac Pro etc, follow the Mac instructions Note that the original Apple Broadcom bluetooth devices are not RAMUSB devices, and thus do not have the same firmware mechanism. The firmware applied is extracted from the Windows drivers and the functionality should be equal to Windows. It will apply the firmware update to your Broadcom Bluetooth device on every startup / wakeup, identical to the Windows drivers. BrcmPatchRAM kext is a macOS driver which applies PatchRAM updates for Broadcom RAMUSB based devices. The Broadcom Windows driver will upload firmware into the Broadcom Bluetooth device on every startup, however for macOS this functionality is not supported out of the box. RAMUSB allows the firmware for the device to be updated on-the-fly, however any updates previously applied are lost when shutting down the machine.
Most Broadcom USB Bluetooth devices make use of a system called RAMUSB.
