Ap3g2-k9w7-tar.153-3.jbb1.tar Work
If your AP was originally purchased as a AP (e.g., AIR-AP2602I-B-K9C), it uses an SSC certificate. This k9w7 image expects an MIC certificate.
Need the direct download? You must have a valid Cisco SmartNet contract for the 2600/3700 series to access this file via Cisco Software Download (search: Wireless > Aironet 2600 Series > 15.3(3)JBB1). Ap3g2-k9w7-tar.153-3.jbb1.tar WORK
Here is the compatibility matrix:
Some engineers use WORK informally in upgrade procedures to mean: If your AP was originally purchased as a AP (e