Added a locked country code for Ukraine and updated maximum EIRP to 23dBm for EU countries in the indoor range.
Firmware 5.6.4 Download request [Solved] - Ubiquiti Community
Select the .bin file and click Upload . Once verified, click Update and wait for the device to reboot. Do not power off the device during this process. Why Downgrade to XW.v5.5.6? Ubnt Firmware Xw.v5.5.6 Download
Released in mid-2013, version 5.5.6 introduced several regulatory updates and stability fixes designed to improve point-to-multipoint (PtMP) performance.
Older versions sometimes handle Dynamic Frequency Selection (DFS) differently, which may be necessary for specific regional deployments. Added a locked country code for Ukraine and
Fixed a recurring issue where Access Points (APs) would stop passing traffic in certain PtMP setups.
Since Ubiquiti has moved newer airOS 6 and 8 versions to the primary Ubiquiti Download Portal , older 5.x releases are often found in the "Past Firmware" or legacy sections. Requirement Ubiquiti airMAX M Downloads (Select "Past Firmware") Mirror Site Softpedia - Ubiquity AirOS V 5.5.6 Archive Site Ubnt.su Legacy Archive Steps to Install: Do not power off the device during this process
In the System tab, click Choose File under the "Upload Firmware" section.