[solved]Could not get Bluetooth working with AzureWave Broadcom BCM94352HMB

[kefu]

I just built my first Hackintosh last week, thanks for the community here learnt a lot of things.
Everything else works fine, but the only problem annoying me is the bluetooth does not find any devices(the bluetooth icon is enabled)

Here's my setup:
Motherboard: ASUS ROG Maximus X Hero (Wi-Fi AC) Z370
CPU: i7 8700K
GPU: AMD Rx 580
WIFI+BLUETOOTH: AzureWave Broadcom BCM94352HMB (I bought this card because it's the only card I can find from Amazon Canada)

Wifi works fine.
It's weird that the system report shows two paired devices under bluetooth, but there's nothing shown in the bluetooth list.

Thanks a lot.

 

[kefu]

One possible reason I noticed is the bluetooth has a 20702A3 chipset, while in usb bus there's only BCM20702A0 appeared. But have no idea how to fix it.

 

[kefu]

It turns out all my kext files are failed to load during startup due to untrusted signature. I turned it off via config.list. And after reboot, bluetooth works like a charm now.