Hello,
I tried to install Guix on some hardware I had l lying around and it did not quite work out. I used the graphical installer and did not do anything special. The Installation failed, and I was asked if I wanted to report a problem, after which I chose the upload functionality in the Installer. The uploaded achive is called "installer-dump-fe4c231a". The installer did not complain about non-free hardware.
I hope this helps to impove Guix.