[SOLVED] Cannot enable Bluetooth

[Tim Curtis]

You could try reboot then look at syslog for bluetooth errors.

Here's what my Pi-4B reports

Code:

pi@rp2:~ $ cat /var/log/syslog | grep -i blue
May 23 08:58:34 rp2 systemd[1]: Stopping Configure Bluetooth Modems connected by UART...
May 23 08:58:34 rp2 systemd[1]: Stopped target Bluetooth.
May 23 08:58:34 rp2 systemd[1]: Stopping BluezAlsa proxy...
May 23 08:58:34 rp2 bluetoothd[1237]: Endpoint unregistered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Source/1
May 23 08:58:34 rp2 bluetoothd[1237]: Endpoint unregistered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Source/2
May 23 08:58:34 rp2 bluetoothd[1237]: Endpoint unregistered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Sink/1
May 23 08:58:34 rp2 bluetoothd[1237]: Endpoint unregistered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Sink/2
May 23 08:58:58 rp2 systemd[1]: Starting Configure Bluetooth Modems connected by UART...
May 23 08:59:04 rp2 kernel: [   30.838847] Bluetooth: Core ver 2.22
May 23 08:59:04 rp2 kernel: [   30.838921] Bluetooth: HCI device and connection manager initialized
May 23 08:59:04 rp2 kernel: [   30.838939] Bluetooth: HCI socket layer initialized
May 23 08:59:04 rp2 kernel: [   30.838951] Bluetooth: L2CAP socket layer initialized
May 23 08:59:04 rp2 kernel: [   30.838989] Bluetooth: SCO socket layer initialized
May 23 08:59:04 rp2 kernel: [   30.852793] Bluetooth: HCI UART driver ver 2.3
May 23 08:59:04 rp2 kernel: [   30.852804] Bluetooth: HCI UART protocol H4 registered
May 23 08:59:04 rp2 kernel: [   30.852872] Bluetooth: HCI UART protocol Three-wire (H5) registered
May 23 08:59:04 rp2 kernel: [   30.853060] Bluetooth: HCI UART protocol Broadcom registered
May 23 08:59:04 rp2 systemd[1]: Started Configure Bluetooth Modems connected by UART.
May 23 08:59:04 rp2 systemd[1]: Starting Bluetooth service...
May 23 08:59:04 rp2 systemd[1]: Reached target Bluetooth.
May 23 08:59:04 rp2 bluetoothd[1092]: Bluetooth daemon 5.50
May 23 08:59:04 rp2 systemd[1]: Started Bluetooth service.
May 23 08:59:04 rp2 systemd[1]: Started Raspberry Pi bluetooth helper.
May 23 08:59:04 rp2 bluetoothd[1092]: Starting SDP server
May 23 08:59:04 rp2 kernel: [   31.004568] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
May 23 08:59:04 rp2 kernel: [   31.004574] Bluetooth: BNEP filters: protocol multicast
May 23 08:59:04 rp2 kernel: [   31.004589] Bluetooth: BNEP socket layer initialized
May 23 08:59:04 rp2 bluetoothd[1092]: Bluetooth management interface 1.14 initialized
May 23 08:59:04 rp2 dbus-daemon[319]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.10' (uid=0 pid=1092 comm="/usr/sbin/bluetoothd --noplugin=sap ")
May 23 08:59:05 rp2 systemd[1]: Started BluezAlsa proxy.
May 23 08:59:05 rp2 bluetoothd[1092]: Failed to set privacy: Rejected (0x0b)
May 23 08:59:05 rp2 bluetoothd[1092]: Endpoint registered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Source/1
May 23 08:59:05 rp2 bluetoothd[1092]: Endpoint registered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Source/2
May 23 08:59:05 rp2 bluetoothd[1092]: Endpoint registered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Sink/1
May 23 08:59:05 rp2 bluetoothd[1092]: Endpoint registered: sender=:1.11 path=/org/bluez/hci0/A2DP/SBC/Sink/2