Hello, Felix Grützmacher - Help Tech Elektronik GmbH, on jeu. 06 avril 2017 16:26:43 +0200, wrote: > the problem occurred in both. Did you try with the libusb version of brltty? (not the libusb-1.0 version) You need to tell the installer to install the libusb-win32 driver, so that it overrides any libusb-1.0 driver. Samuel