Some of your hardware needs non-free firmware files to operate. The firmware can be loaded from removable media, such as a USB stick or floppy.
Kra n warreumen-inek·inem sran afreɣẓan arilelli i wakken ad ddun. Afreɣẓan yezmer ad d-yettusali seg umidya aziraz, am tsarut USB neɣ taḍebsit.