I Get “Try Again in 24 Hours” Error on My Samsung Galaxy A51—Phone Won’t Start Up

I’m using a Samsung Galaxy A51, and out of nowhere, the phone shut down by itself and hasn’t been able to start up since. It’s charging properly, and the screen lights up, but instead of booting into the system, it just displays the message:
“Try again in 24 hours.”

I have no idea why this happened—I didn’t drop it, damage it, or install anything unusual. The phone had no issues before this, and now I’m completely locked out for no clear reason. I waited the full 24 hours as instructed, only to get stuck in the same loop again.

Samsung, this is incredibly frustrating. A device shouldn’t lock users out without explanation or recovery options. I need this phone for everyday communication and work, and now it’s useless in my hands.