I brought this laptop second hand at the end of August and at the start of December it said that the laptop is plugged in but not charging, when I plug the laptop in it charges for about 10 seconds before it stops, the battery is on 43%. Also the laptop doesn't start up properly. The power light comes on but the satellite light doesn't and then the fan stops spinning. I took out the battery and held the power button down before plugging it back in and then turning it on which worked a couple of times (it said BIOS was shadowed but I don't know what that means) and now I can't get it to turn on anymore. Please help!!