TechHead_824 says:

I have two of these that have opposing problems:
– The speakers on my older unit are damaged, while a mint unit sounds amazing
– Conversely, while the older Hp620lx has a working screen, the mint condition one’s is damaged (glows white with some orange grainy stuff in one corner).
What would be the best way to switch parts? (I’m too strapped for cash to afford yet another unit)