My iPhone is in a loop of shutting off then flashing to lockscreen before shutting off with loading symbol again.

Why is my iPhone shutting off, then flashing to my lock screen before shutting off with a loading symbol again?

Why does my iPhone shut off when I enter my pass code correctly?

I can definitely say that, in fact, I have tried the hard reset, I have tried the restore thing with the Macbook, and I have tried other small things that I thought could help. With success?-Nope. So before I dig a deeper hole, I would like to describe what is wrong to every small detail.

#1 So to begin with the biggest problem: my phone is in this loop where it acts as if it is about to be shut off, but then flashes to my lock screen before going back to that frustrating blank loading screen.

#2 This is heavily related to number one, but every time I type in my passcode correctly, it goes back into that loop. Pretty much makes my phone useless if I cannot get into it most of the time.

#3 Now say, I do get into my phone and it seems to be working, yet the apps are invisible, but they are still accessable.

#4 Number 3 links to this one a lot because if I manage to get in an app then if I do too much back and forth toggling, it will usually start going into that loop again.

#5 HOW DO I FIX THIS, I NEED MULTIPLE WAYS BECAUSE MOST ARENT WORKING!!??