Chosen Solution
The laptop was working and lid was closed. Upon reopening the unit will not power back on.
First make sure the power supply is good and the battery is charged? If those are OK, try this… Unplug the power supply and also remove the battery. With both sources of power removed , now press the power button a few times Then reinsert battery , power supply & try again. If that doesn’t work, I would ask you this…. You said the " laptop was working and lid was closed". Meaning, the computer was running and when you returned it ws off & then unable to power back on? If yes,…. was it laying on something like your bed , sofa, etc….? If yes, ….. then the air vent for the fan may have been blocked, causing it to overheat.
try to clean ram or replace it .if dose not work maybe there is problem in mother board like power ram ic or VGA card or some wet.
