Time to google up a service manual methinks. Have done it for a few machines and had success, but not saying that the manuals are available for newer Lappies.
Mind you, there should be a fairly local PC shop/repairer that has a sense of humour or can forward to a dedicated laptop fixer if needs be.
If you can let me know the exact model, I might be able to find something for you if you have no joy.
Conan