ADTRAN modello sdg 854-v6 wifi 6 2.5g router gateway BLOCCATO SU BEFIBRE LEGGERE BENE
Locked to BeFibre. The current fw version is 12.7.2.1 and this device has fw version 12.7.2.1. The BeFibre firmware can be removed, but it needs special tools and computer programming knowledge. This is well beyond my skill set.