crwdns2934241:0crwdne2934241:0 amatsuda
crwdns2934249:0crwdne2934249:0:
Sounds like an issue with the hinge clutches in the top part. Unfortunately I have absolutely no idea how to get to them, but I think iFixit has guides.
crwdns2915684:0crwdne2915684:0:
open