Note: Do not flash this firmware on LiteStation M2 (XM) or any AC device.
Based on the text provided, here is the relevant context and download source: Ubnt Firmware Xw.v5.5.6 Download
Before downloading any firmware, you must confirm that your device runs on the (sometimes written as "Xw") chipset. Ubiquiti has three major legacy architectures: Note: Do not flash this firmware on LiteStation
Firmware 5.6.4 Download request [Solved] - Ubiquiti Community Ubnt Firmware Xw.v5.5.6 Download
Locked country codes for certain regions (e.g., Ukraine) and updated EIRP limits for EU countries and Vietnam.