Bricked ubiquiti powerbeam m2

[mk24]

Is this XM hardware with an AR7240 chip?

May be related to this:

Ubnt unifi AP with SNAPSHOT r17220-ae1c5d0d6a

I managed to build an image that works fine on my unifi ap. I've just changed in target/linux/ath79/dts/ar7241_ubnt_unifi.dtsi #include "ar7241.dtsi" -> #include "ar7240.dtsi" and rebuild the system. That's it.