what error does it show?
i would say that there is no way to open and repair the hard disk.
if a lint or dust get into the hard disk - it would be over.
so the only way to get the computer working again is to replace the hard disk.
you can use the hard drive guide. i know that the pictures are not on par - but i think you will get it.
you will need a 2.5" sata drive for that notebook.