On Sat, Jun 18, 2022 at 02:31 AM, <fastguido@...> wrote:
Totally lost now.
Hello Guido,
OK, if you have never used the Terminal program under MacOS it is not so easy.
When you go web page
you will see a big green button, labeled
Download, see below:

Click on that green button and a download? of file
dfu-util-0.11-binaries.tat.xz starts to MacOS folder
Download (usually).
Then you need to rename in
Finder file
dfu-util-0.11-binaries.tar.xz to
dfu-util-0.11-binaries.tar, which is an archive file.
With a double click of the mouse on file
dfu-util-0.11-binaries.tar this file is unpacked to folder
dfu-util-0.11-binaries.
Then you have to use the Terminal.
If you have never used the Terminal in MacOS, you have to learn something new.
Good luck.
73, Rudi DL5FA