"ipad not charging when I plug it in"에 답변You might have let the battery discharge. My iPad would not charge, I checked the cord for damage, borrowed a friends cord, nothing worked. I tried pushing in the "on" button, I tired all the buttons (as if this would help). What did work was to push both the on/off button and the sleep button. I went to the Apple Store and was told... Yes, that is called a "Hard Reset"