If you want to concern other parts, the power button light never on even I replaced a new power button, but I can’t say it is 100% good.
When I first returned the MB, seller didn’t say anything good or bad just gave to me the
refund in one week, I just wrote a note said “ this MD didn’t work on my NB”,
I bought 2nd from a different seller and I will give him a same note when I return.
I am going to buy another NB some time late. But I will stop trying to fix this one.
Maybe the reason I will never be able to know.
Thank you so much for your helping. I am living in VA . Now I knew where you are.
I went to SF area several times.