Unlike monolithic .bin images, this .tar file contains multiple files that the AP’s bootloader (Uboot or ROMMON) unpacks during upgrade.
(e.g., a specific device folder, a firmware download site like Sammobile, or a GitHub repo). Ap3g3-k9w8-tar.153-3.jpo.tar
: The file format. This is a "tarball" archive that contains the actual IOS image ( .bin ) along with web management files and HTML interfaces. 153-3.jpo : The specific IOS version (Version 15.3(3)JPO ). Unlike monolithic