pluggable usb bluetooth adapter
Bus 001 Device 005: ID 0a5c:21e8 Broadcom Corp. BCM20702A0 Bluetooth 4.0

messages in boot.msg

<6>[    5.211159] Bluetooth: hci0: BCM: chip id 63
<6>[    5.212137] Bluetooth: hci0: BCM: features 0x07
<6>[    5.228214] Bluetooth: hci0: BCM20702A
<6>[    5.229131] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
<4>[    5.229928] bluetooth hci0: Direct firmware load for
brcm/BCM20702A1-0a5c-21e8.hcd failed with error -2
<6>[    5.229932] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0a5c-21e8.hcd not
found

messages if in install packet bcm20702a1-firmware :

<6>[    5.144093] Bluetooth: hci0: BCM: chip id 63
<6>[    5.145117] Bluetooth: hci0: BCM: features 0x07
<6>[    5.161119] Bluetooth: hci0: BCM20702A
<6>[    5.162300] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
<4>[    5.162620] bluetooth hci0: Direct firmware load for
brcm/BCM20702A1-0a5c-21e8.hcd failed with error -2
<6>[    5.162622] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0a5c-21e8.hcd not
found

This is exactly the same error.


another problem :

lsusb says it is a "BCM20702A0 0a5c:21e8" chipset and the system tries to load
a "BCM20702A1 0a5c:21e8" module