Always read the Release Notes for the FUS file. Cisco often hides specific hardware compatibility notes there that aren't in the main AireOS release notes.
Have you run into a "PowerPC not responding" error after skipping this file? Let me know in the comments below. air-ct2500-k9-2-0-0-0-fus.aes
: This file extension denotes that the software image is encrypted with AES (Advanced Encryption Standard), which is a widely used and respected encryption algorithm. Always read the Release Notes for the FUS file
, upgrading to FUS 2.0 is mandatory if your device has PIC version 1.0.19 to address critical issues like . Let me know in the comments below
Do not power cycle the controller during this process. A failed FUS update can require an RMA.
Loading "flash:/AIR-CT2500-K9-8-5-182-0.aes"... failed: File not found Boot process interrupted.
Specify the exact filename: transfer download filename AIR-CT2500-K9-2-0-0-0-FUS.aes . Set the path (usually / ): transfer download path / . Start the transfer: transfer download start . File Name AIR-CT2500-K9-2-0-0-0-FUS.aes File Size Approximately 15.40 MB Compatible Hardware Cisco 2504 Wireless Controller Primary Purpose Upgrading Bootloader and FPGA components Risk Level High (Power loss can brick the device)