Iphone has loading bar under apple logo when i turn it on?


macrumors newbie
Original poster
Jan 31, 2018
I was recently turning on my old iphone 4 and it randomly shut off.. stayed on the little loading circle for about 5 minutes until i force shut it off... then when i went back to turn it on it had the apple logo with a loading bar underneath? I force shut it off again before the bar finished loading.. what happened? Did my iphone reset or is it just rebooting and should turn on fine??