I'm quite new to Ubuntu 20.04 (and Linux) and spent some time fixing my problem with bluetooth not being able to find any devices.
Lubuntu 20.04 bluetooth devices not detected Not sure, but I think this is the closest to my problem.
dmesg | grep -i 'blue'
[ 4.542033] Bluetooth: Core ver 2.22
[ 4.542054] Bluetooth: HCI device and connection manager initialized
[ 4.542060] Bluetooth: HCI socket layer initialized
[ 4.542074] Bluetooth: L2CAP socket layer initialized
[ 4.542077] Bluetooth: SCO socket layer initialized
[ 4.711132] Bluetooth: hci0: BCM: chip id 70
[ 4.712132] Bluetooth: hci0: BCM: features 0x06
[ 4.728141] Bluetooth: hci0: BCM43142A
[ 4.728145] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[ 4.730896] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[ 4.730901] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-105b-e065.hcd'
[ 4.730902] Bluetooth: hci0: BCM: 'brcm/BCM-105b-e065.hcd'
[ 6.753354] Bluetooth: hci0: command 0x1003 tx timeout
[ 6.754147] Bluetooth: hci0: unexpected event for opcode 0x1003
[ 7.707035] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 7.707037] Bluetooth: BNEP filters: protocol multicast
[ 7.707042] Bluetooth: BNEP socket layer initialized
[ 21.550716] Bluetooth: RFCOMM TTY layer initialized
[ 21.550722] Bluetooth: RFCOMM socket layer initialized
[ 21.550729] Bluetooth: RFCOMM ver 1.11
/lib/firmware/brcm
? – Pilot6 Jan 16 '21 at 15:40