I am trying to change a raspberry pi's bluetooth name to something else (an ip address) so that when I scan and pair my android device it will see this ip as the device name. It worked once but then went back to appearing as "raspberrypi-0"
I have tried both the hciconfig set name command, and have also changed the device name inside /etc/bluetooth/main.conf but still all my device sees is "raspberrypi-0". Its driving me crazy so if anyone knows what the issue is please help!
@Evangelos Nannos answer still works (BlueZ 5.50) but if you want to change bluetooth alias on the fly you may try bluetoothctl (tested on Pi Zero W running Raspbian Stretch & BlueZ 5.50)
To set new alias open terminal:
pi@raspberrypi:~ $ bluetoothctl
[bluetooth]# system-alias 'Your New BT Alias'
Changing Your New BT Alias succeeded
[CHG] Controller AA:BB:CC:DD:EE:FF Alias: Your New BT Alias
Use show to see current bluetooth settings:
[bluetooth]# show
Controller AA:BB:CC:DD:EE:FF
Name: Some_other_name #default or as PRETTY_HOSTNAME
Alias: Your New BT Alias #alias will be shown when scanning for bt devices
(...)
Reset alias and go back to using system device name with:
[bluetooth]# reset-alias
Exit bluetootctl with:
[bluetooth]# quit
With Discoverable on (yes) the device will show up during scaning as Your New BT Alias.
Take note that alias will be kept after reboot!
I've use pexpect to manipulate bluetoothctl, bash works too. There were problems registering Agent on BlueZ 5.43 via pexpect, had to upgrade to 5.50
Alternative command (note it will not return a response):
pi@raspberrypi:~ $ sudo hciconfig hci0 name 'New device name'
It stores the display name in /var/lib/bluetooth/xx:xx:xx:xx:xx:xx/config file. If you wants to change the bluetooth display(broadcast) name then you need to follow the below steps:
Note: If this already paired with some other BT devices, so you need to remove the pairing to see the new BT name of the same device(MAC).
You can also just disable the hostname plugin and configure the name.
Run sudo vim /etc/systemd/system/bluetooth.target.wants/bluetooth.service
and append --noplugin=hostname, like this:
ExecStart=/usr/lib/bluetooth/bluetoothd --noplugin=hostname
Then edit the bluetooth config and set your desired name:
sudo vim /etc/bluetooth/main.conf
Name = YourNewName
Just follow the below steps
step 1 - write below code in terminal
sudo nano /etc/machine-info
step 2 - It will open a blank file, Now write this line into it
PRETTY_HOSTNAME=PutYourDeviceNameHere
step 3 - Now restart Bluetooth service OR You can reboot Raspberry Pi
service bluetooth restart
OR
sudo reboot
Hope it's Work For you
