The firmware file renamed to ap3g1-k9w7-tar.default (required by some bootloaders for automatic recovery).
❌ : Torrent sites, random Google Drive links, or unmoderated forums without checksums.
If you are looking for specific configuration examples, or if you are trying to convert these access points from Lightweight (Controller-based) to Autonomous (standalone), I can walk you through those steps as well. Share public link