https://help.ui.com/hc/en-us/articles/204910064-UniFi-Network-Advanced-Device-and-Application-Update#h_01F8GWSNHCB18N8Z2PKGDXEYDY
upgrade https://dl.ui.com/unifi/firmware/U7PG2/5.43.56.12784/BZ.qca956x_5.43.56+12784.211209.2338.bin
Die Downloadlinks für die Firmware findet man hier https://www.ui.com/download/unifi/