First I have to say, I don't know.
However, I do remember a discussion somewhere about the display lid and how to fix that the Pinebook recognizes that the lid is closed.
In that discussion magnetic metal pieces where mentioned. Maybe this is a idea to search further.
These are magnets used for the hall switch. Just put them back in their original position along the front edge of the Pinebook 14" - there are alignment cutouts for them.
Hmm, I'll find one for you - if not, I'll take the bottom of my 14" and snap a picture tomorrow [will update this post]
I have put them back now.
Thanks for your help Luke and Surehand53.