my laptop screen has no light but when i use flashlight i saw what is on the screen

Solution
It is the inverter or backlight of your display that may have gone out/died. If that is the case, then it will need to be replaced. If the laptop is under warranty, contact the manufacturer. If it isn't, then I would try a local tech, unless you feel comfortable doing the work yourself.
It is the inverter or backlight of your display that may have gone out/died. If that is the case, then it will need to be replaced. If the laptop is under warranty, contact the manufacturer. If it isn't, then I would try a local tech, unless you feel comfortable doing the work yourself.
 
Solution