iPhone7: Reboot loop, Not charging, random jumps between 1% and 100%
I got an iPhone 7 about 8 months ago. The first accident was about a month in dropped it on the pavement (screen protector didn't help), cracked screen.
Had the screen replaced. It been fine since. Until about 2 weeks ago, the battery level dropped from 63% to 1% in split second while I was using it.
I've tried hard reset, DFU Restore (I had the phone plugged in to enter this mode), the phone refuses to turn on without being plugged in, and when that happens, it just gets stuck in the reboot loop.
Hard to tell if its a battery or bad software, I really do not know. Any help would be a great first step.
Is this a good question?