Problem recording the firmware of the Xirrus XH2-120 Wi-Fi Access Point

I purchased a Xirrus XH2-120 AP in Brazil, started configuring it, and needed to reset it. I reset it via the web interface: system tools/configuration management/reset.

After the reset, the device wouldn’t start the web interface. I managed to flash the firmware again using XIRCON, accessed it again through the web interface, but the option to flash the firmware shows: Feature not available while Flash disabled.

What should I do now?

If I turn off PoE, it loses the firmware, and I need to repeat the procedure.