Computer not turn on

hi.
2,3 days ago my laptop battery get low and it turn off(hibernate) i try to do everything but nothings happen. i read the method to hard reset the laptop i did but nothing happen again. then i remove the plastic the is placed on the power button and try to join the point where the button is attached and then suddenly my laptop shows up but no display. then i remove my 1 ram and it works fine all day after that day the laptop is still doing the same problem if i want to turn it on i have to join the solder points..