Can my power button be replaced on my laptop?

I had this problem with that exact laptop, I had taken it apart to inpspect for any problems, for me it just wouldn't turn on due to the battery,

So a good step is to check the battery is still working, and same with the charger.

But the Answer to your question... Yes the Button can be replaced, their are a couple parts too the power on button though.

Hopefully the only problem is the actually button cover, the circular plastic you push on the outside,

Otherwise you can also replace the rubber along with the button.

Hopefully you won't have to replace the motherboard, your best bet if all else fails is to get a new pc. :/

But if you are able too, take the laptop apart, having access to the power button, try switching it on the motherboard itself with the front cover off, I do warn you though that this could damage the pc if treated incorrectly.

If you need any help, just send a comment!