Wants to improve the booting time of a Pi Zero 2W. Among other things, I like to turn off the Bluetooth completely and remove the software. But wifi should be intact as it is a headless set up. Old methods such as sudo systemctl disable Bluetooth and sudo systemctl disable hciuart.service are not working as expected in trixie version. I still see the Bluetooth in the dmesg
in config.txt dtoverlay=disable-bt has been added and rebooted
the above Bluetooth messages removed but booting time increased (by 1 sec)
Part of dmesgAny suggestion will be appreciated.
Code:
(env) gadget@gadget:~ $ sudo systemctl disable bluetoothSynchronizing state of bluetooth.service with SysV service script with /usr/lib/systemd/systemd-sysv-install.Executing: /usr/lib/systemd/systemd-sysv-install disable bluetooth(env) gadget@gadget:~ $ sudo systemctl disable hciuart.serviceFailed to disable unit: Unit hciuart.service does not existPart of dmesg[ 11.023536] Bluetooth: hci0: BCM43436 37.4MHz Class 1.5 RaspBerry Pi Zero2 [Version: 1017.1042][ 11.023564] Bluetooth: hci0: BCM43430A1 (001.002.009) build 1042[ 11.024174] Bluetooth: hci0: BCM: Using default device address (43:43:a1:12:1f:ac).......the above Bluetooth messages removed but booting time increased (by 1 sec)
Part of dmesg
Code:
[ 12.304607] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Jun 14 2023 07:27:45 version 7.45.96.s1 (gf031a129) FWID 01-70bd2af7 es7[ 19.101480] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled[ 20.105733] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save disabledStatistics: Posted by Nastanir — Thu Nov 06, 2025 7:46 am