Recently, my phone gave me a lot of trouble. It’s an old phone and it was just one problem after another. In exasperation, I did reset after reset with the same problems coming up over and over. I then replaced the battery.
When it still didn’t work, I went crazy and deleted everything I could find to delete.
And then when I tried to start the phone, it said, “No operating system!”
I had deleted the operating system of the phone, which meant it couldn’t even start now!