RPi3MB: Raspbian не видит Bluetooth

[pi]

Доброго дня! Речь идет о встроенном адаптере.
Такого ведь не может быть, чтобы он отсутствовал?

# lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 9.13 (stretch)
Release:        9.13
Codename:       stretch

# hcitool dev
Devices:

# hcitool scan
Device is not available: No such device

#  rfkill list all
0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

# sudo systemctl start hciuart.service
Job for hciuart.service failed because the control process exited with error code.
See "systemctl status hciuart.service" and "journalctl -xe" for details.

# systemctl status hciuart.service
● hciuart.service - Configure Bluetooth Modems connected by UART
   Loaded: loaded (/lib/systemd/system/hciuart.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2021-03-27 21:51:06 MSK; 38s ago
  Process: 15301 ExecStart=/usr/bin/btuart (code=exited, status=1/FAILURE)

Mar 27 21:51:06 kodi btuart[15301]: Can't set line discipline: Invalid argument
Mar 27 21:51:06 kodi btuart[15301]: Can't initialize device: Invalid argument
Mar 27 21:51:06 kodi btuart[15301]: bcm43xx_init
Mar 27 21:51:06 kodi btuart[15301]: Flash firmware /lib/firmware/brcm/BCM43430A1.hcd
Mar 27 21:51:06 kodi btuart[15301]: Set BDADDR UART: b8:27:eb:da:10:76
Mar 27 21:51:06 kodi btuart[15301]: Set Controller UART speed to 921600 bit/s
Mar 27 21:51:06 kodi systemd[1]: hciuart.service: Control process exited, code=exited status=1
Mar 27 21:51:06 kodi systemd[1]: Failed to start Configure Bluetooth Modems connected by UART.
Mar 27 21:51:06 kodi systemd[1]: hciuart.service: Unit entered failed state.
Mar 27 21:51:06 kodi systemd[1]: hciuart.service: Failed with result 'exit-code'.