You can help speed up the process by entering random characters on the keyboard, or just wait until enough key data has been collected (which can take a long time).
Tzemreḍ ad tɛawneḍ arured n uskil s sekcem n yisekkilen igacuranen ɣef unasiw neɣ rǧu kan alamma isefka n tsarut ttuleqqḍen-d (i izemren ad ṭṭfen aṭas n wakud).