My H2S just shutdown

My H2S just shutdown after a successful print. By shutdown I mean it powered off completely. I searched for info on Bambulab Wiki so I figured out it should have a green led blinking behind, nope, all off only the power switch was like “pulsing”. I send it to a friend today and once he power it, it went up and now it’s printing.

What could it be? Any power protection? This is my 1st BL printer so I am still learning everything I need about.

Welcome to the forum.

Before you moved the print to your friends were you able to check the power outlet it was plugged into to see if it was functioning correctly?