try mo po tanggalin ang batery tpos plug mo lang yong charger. tpos turn on mo po ulit.
try mo din linisan ung memory.
wala bang beep sounds? ilaw lang talaga?
i had this problem with my tita's hp laptop...and i've done everything i knew but none of it worked.until i read this HP Limited Warranty Service Enhancement... http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c01087277 hope it works...