If you own DW1560 (also branded as BCM94352Z or AW-CE162NF) and experience some issues with Bluetooth, check the version of the kext. I found out the hard way, it’s somewhat broken for DW1560.
macOS Catalina + BrcmPatchRAM2.kext
Once you upgrade to macOS Catalina,
BrcmPatchRAM2.kext no longer works. You have to upgrade Bluetooth kexts to
BrcmPatchRAM3.kext. I noticed that booting with
BrcmPatchRAM3-v2.5.0 breaks the ‘Call from iPhone’ feature.
The bug has been reported
Previous testing version BrcmPatchRAM3-V2.3.0d3 works fine for me. Bare in mind that to be able to download the file, you have to be logged in to insanelymac.com.