Okay, This laptop used to work until someday I closed the screen(which should go to sleep) and opened it it was still working but nothing shown on the screen,
I shut it down then it didn't turn on again, when I put the charger the power led light but it doesn't turn on, when I take out the battery and put the charger it does nothing,
so I followed a tutorial and took the motherboard out and cleaned it.
It worked and did some tests then when it restarted it did the same thing, fan spinning fast and when I shut it down it doesn't turn on again, did the same thing and it worked than I accidentally closed the screen and it's turned down now, what would cause that and how to fix it. thanks.
Note: there were some marks of a dry sticky liquid on the MB which I carefully cleaned...
