Okay, so I recently started to get an Inspiron 5100 working after it’d been sitting around for a couple of years. The only apparent problem was that the hard drive was broken. After replacing the hard drive, I noticed another problem – the laptop won’t turn on without the AC cord plugged in. You can turn it on and unplug the cord, and it works fine on battery, and the battery charges fine. Not only this, but if you turn it on with the AC plugged in, turn it off, then unplug the AC, it turns on without the AC on (though if you turn it off again, it won’t turn on again without the AC cord plugged in). After completely diassembling the laptop, I couldn’t find any apparent issues, so I put it back together. (Same problem.)
Anybody have any clue what the issue is?
