Hello, I managed to install it. The problem is that the version bluez-5.4.tar.xz does not install the btmgmt like it should, using the version bluez-5.41.tar.xz made the difference. No I can run sudo btmgmt le on, as well as gattool. But I have still an issue: Then I run sudo python BS440.py & I get ...

Hello, I managed to install bluez by doing reinstalling a domoticz pi: and then as u said run: # wget https://www.kernel.org/pub/linux/bluetooth/bluez-5.4.tar.xz # tar xvf bluez-5.4.tar.xz # apt-get install libusb-dev libdbus-1-dev libglib2.0-dev automake libudev-dev libical-dev libreadline-dev # cd ...

now it downloaded and it's unpacked
but if I enter
./configure --disable-systemd
.....
-->checking whether the C compiler works... no

in the log file I get
gcc: Internal error: Segmentation fault (program cc1)

looks like gcc does not work well what do I need to do?

I try to follow your instruction but i'm failing to install Gatttool:

If I enter
wget https://www.kernel.org/pub/linux/blueto ... 5.4.tar.xz tar xvf bluez-5.4.tar.xz
I get wget: symbol lookup error: /lib/arm-linux-gnueabihf/libc.so.6: undefined symbol: error_one_per_line, version GLIBC_2.4

Hello I have a BS444 and want to connect it.
Does this code already found his way in an official release?