I followed the guide at https://www.tonymacx86.com/threads/broadcom-wifi-bluetooth-guide.242423/. I did not patch Clover config.plist with config-bcm94352-130.plist because I couldn't figure out how and there is conflicting info on whether I need to or not. I installed all the kexts from Rehabman as per the guide in S/L/E. I now have BT working perfectly but no WiFi on 10.13.4. My Bluetooth chipset reports as 20702B0 which is a native Broadcom card from an old Mac that worked...
[solved] Followed Broadcom Wife/BT Guide. I have BT but no WiFi
[solved] Followed Broadcom Wife/BT Guide. I have BT but no WiFi