Hi All, new to this forum.

My girlfriends Inspiron 15R N5110 has an unknown problem. Backstory: It was purchased new about 2 years ago and has had slight problems with the track pad and an awful network connection (both wireless and ethernet).

Recent: It came down with a pretty bad browser hijacker, so I re-imaged it about a week ago. The network connection was still bad so I went to take a look at it and when I picked it up the screen turned black and the computer sounded like it snapped off (turned off abrupt enough to make an audible noise). The computer gave no indication of power (power cycling, lights, sounds, nothing)  with either the battery or charger alone and together. I left it alone for a couple of days and thinking the motherboard was fried I started planning on getting another laptop. Today for the heck of it I took off the battery and plugged it in and it turned on, I booted it into safe mode and logged on, then it did the same thing and turned off abruptly and I havent been able to get it going again. 

Thoughts on what the problem may be?