New Samsung Galaxy A54 5G hangs

It hangs in a reboot cycle, never finishes booting.
If I connect the charger, it completes reboot and can be used.
In fact, as it is new I had it connected all the time I was initializing the thing. As soon as I took it off, and the owner exited the room, it started acting up.
I can not power it off. I need to connect the charger, complete boot, select power off, wait, then remove the cable... which immediately triggers the cycle.
I will return it.
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Cheers,
        Carlos E.R.