x86_64 platform 7.90.005 (and all previous including OpenElec).
Bluetooth does not work at bcm943142hm combo wifi+bluetooth module. Wifi work great.
A similar problem with bcm943142 on Ubuntu
Solution:
Place BCM.hcd (from attachment) in /lib/firmware/brcm/
!!! Please add this file in your build system !!!
I tested on Intel NUC DE3815 (unsquashfs SYSTEM, move BCD.hcd to /lib/firmware/brcm and mksquashfs SYSTEM back)
Code
##############################################
# LibreELEC #
# http://libreelec.tv #
##############################################
LibreELEC (community) Version: 7.90.005
LibreELEC:~ # ls /lib/firmware/brcm
BCM.hcd brcmfmac4334-sdio.bin
BCM20702A0-0a5c-21e8.hcd brcmfmac43340-sdio.bin
BCM20702A0-0a5c-21ec.hcd brcmfmac4335-sdio.bin
BCM43430A1.hcd brcmfmac43362-sdio.bin
LICENCE.broadcom_bcm43xx brcmfmac4339-sdio.bin
bcm4329-fullmac-4.bin brcmfmac43430-sdio.bin
bcm4329-fullmac-4.txt brcmfmac43430-sdio.txt
bcm43xx-0.fw brcmfmac43455-sdio.bin
bcm43xx_hdr-0.fw brcmfmac4350-pcie.bin
brcmfmac43143-sdio.bin brcmfmac4350c2-pcie.bin
brcmfmac43143.bin brcmfmac4354-sdio.bin
brcmfmac43236b.bin brcmfmac4356-pcie.bin
brcmfmac43241b0-sdio.bin brcmfmac43569.bin
brcmfmac43241b4-sdio.bin brcmfmac43570-pcie.bin
brcmfmac43241b5-sdio.bin brcmfmac43602-pcie.ap.bin
brcmfmac43242a.bin brcmfmac43602-pcie.bin
brcmfmac4329-sdio.bin brcmfmac4366b-pcie.bin
brcmfmac4329-sdio.txt brcmfmac4371-pcie.bin
brcmfmac4330-sdio.bin fw-0a5c_21e8.hcd
brcmfmac4330-sdio.txt fw-0a5c_21ec.hcd
LibreELEC:~ # dmesg | grep Bluetooth
[ 8.827257] Bluetooth: Core ver 2.21
[ 8.827299] Bluetooth: HCI device and connection manager initialized
[ 8.827309] Bluetooth: HCI socket layer initialized
[ 8.827316] Bluetooth: L2CAP socket layer initialized
[ 8.827329] Bluetooth: SCO socket layer initialized
[ 8.948878] Bluetooth: hci0: BCM: chip id 70
[ 8.964808] Bluetooth: hci0: NUC
[ 8.964820] Bluetooth: hci0: BCM (001.001.011) build 0172
[ 9.466310] Bluetooth: hci0: BCM (001.001.011) build 0172
[ 9.482340] Bluetooth: hci0: Broadcom Bluetooth Device (43142)
[ 10.431564] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 10.431575] Bluetooth: BNEP filters: protocol multicast
[ 10.431588] Bluetooth: BNEP socket layer initialized
[ 83.860990] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 83.861008] Bluetooth: HIDP socket layer initialized
[ 83.941946] input: Bluetooth Keyboard as /devices/pci0000:00/0000:00:14.0/usb2/2-4/2-4.1/2-4.1:1.0/bluetooth/hci0/hci0:12/0005:05AC:022C.0004/input/input15
[ 83.944621] apple 0005:05AC:022C.0004: input,hidraw3: BLUETOOTH HID v0.01 Keyboard [Bluetooth Keyboard] on f8:2f:a8:d2:ed:1c
