Because this is a .tar file, you cannot simply copy it to the flash; it must be unbundled using the archive command. Method 1: Using the CLI (Recommended)
The filename follows a standard Cisco convention that reveals exactly what the software does: Ap3g1-k9w7-tar.152-2.jb.tar
The AP will extract the files, update the radio firmware, and reboot. Method 2: Conversion from Lightweight (LAP to AAP) Because this is a
Running version 15.2(2)JB on your hardware unlocks several specific functionalities: Because this is a .tar file
: Specifies the hardware platform. This image is built for the Cisco Aironet 1260, 3500, and 3600 series access points.