I just upgrade to 10.10.5 on a Dell e6410 and I am using Broadcom BCM94352HMB (which is pulled from a Asus Z97i motherboard). I have no problem with the WIFI and the BT. I also use Clover to boot and I set up my e6410 as MacBook Air 5.2
I basically follow https://github.com/toleda/wireless_half-minito enable the 5G and the handoff, and I use the BT firmware uploader here to enable the BT. Here are the pasted output from system report.
Interfaces:
en1:
Card Type: AirPort Extreme (0x14E4, 0x855C)
Firmware Version: Broadcom BCM43xx 1.0 (7.15.166.24.3)
Locale: FCC
Country Code: US
Supported PHY Modes: 802.11 a/b/g/n/ac
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 144, 149, 153, 157, 161, 165
Wake On Wireless: Supported
AirDrop: Supported
Status: Connected
Apple Bluetooth Software Version: 4.3.6f3 16238
Hardware, Features, and Settings:
Name: e6410
Bluetooth Low Energy Supported: Yes
Handoff Supported: Yes
Instant Hotspot Supported: Yes
Manufacturer: Broadcom
Transport: USB
Chipset: 20702A3
Firmware Version: v14 c5565
Bluetooth Power: On
Discoverable: Off
Connectable: Yes
Auto Seek Pointing: Off
Remote wake: On
Vendor ID: 0x0B05
Product ID: 0x17CF
HCI Version: 0x6
HCI Revision: 0x15BD
LMP Version: 0x6
LMP Subversion: 0x220E
Device Type (Major): Computer
Device Type (Complete): Mac Portable
Composite Class Of Device: 0x38010C
Device Class (Major): 0x01
Device Class (Minor): 0x03
Service Class: 0x1C0
Auto Seek Keyboard: Off