Mimosa c5c poe led off

Buenas tardes,
Tengo varios mimosas C5C que no encienden, cuando los conecto al POE este apaga el LED
Que se abra quemado para poder reemplazarlo y recuperarlo

Good afternoon,
I have several C5C mimosas that do not turn on, when I connect them to the POE it turns off the LED
That it opens burned so that it can be replaced and recovered