Enabling Bluetooth During Boot

Building a mobile RPi 4 Kali box with an iclever foldable bluetooth keyboard. While I've figured out how to enable bluetooth with "systemctl start bluetooth.service" that doesn't help on startup!

Have validated "AutoEnable=true" in /etc/bluetooth/main.conf per https://github.com/blueman-project/b...roubleshooting but it still doesn't start on reboot.

Also tried the deprecated method of creating a "bluetooth-keyboard-auto-enable.rules" file in /etc/udev/rules.d (also didn't work) containing the following:
ACTION=="add",
SUBSYSTEM=="bluetooth",
KERNEL=="hci[0-9]*",
RUN+="/bin/hciconfig %k up"Hoping it's a variable I'm missing or something else obvious. Any help/feedback is welcome.

Thanks!

You likely need to also enable the "hciuart" service - so, `systemctl enable --now hciuart && systemctl restart bluetooth` - this will enable (and start) the hciuart service, and then restart bluetooth.

Was able to solve this by modifying the 'crontab' file. Simple '@reboot' with 'root' user privileges running 'systemctl start bluetooth.service' allowed the keyboard to work at startup.

Will be keeping crontab in mind for other services desired at startup.