Free: Air-ct2500-k9-2-0-0-0-fus.aes

, upgrading to FUS 2.0 is mandatory if your device has PIC version 1.0.19 to address critical issues like .

: This file extension denotes that the software image is encrypted with AES (Advanced Encryption Standard), which is a widely used and respected encryption algorithm. air-ct2500-k9-2-0-0-0-fus.aes