I purchased PowerBeam M5-400.
I had a problem creating an openwrt image following the instructions at https://openwrt.org/toh/ubiquiti/powerbeam.
I can't downgrade to XW AirOS 5.6.15 from the web interface.
I tried "tftp recovery mode".
However, for versions below 6.1.4, i.e. versions prior to January 2018, the following error appears after "tftp recovery mode":
Looking at the ssh log,
New (329231) 5.6.15, required (393476) 6.1.4.
The purchased PowerBeam was shipped in May 2019.
Is there no way?