I plugged in my iPhone to the computer before the computer was on, I turned on the computer then when I came back to it, the phone wouldn't turn on. I unplugged it, plugged it back on and it finally started working again after holding down the power and home button. I know my phone is working now but I'm still curious about what happened. Does something happen to phones and stuff when they're plugged in before the computer turns on?
no no. so think about all that cydia stuff you have installed as trains in a major railroad. sometimes they go off the track, crash etc(some more than others) and it causes a bug mess. well when that happens on iphone screen goes black and you have to hard reboot.
best fix? get rid of sone stuff you dont use and itll happen less