open surface pro 4 pen tip to reach its circuit board?

Surface pro 4 pen randomly stop working lead to me suspect poor circuit board connection as described in the following post.

http://www.surfaceforums.net/threads/pen...

But the fix is for surface pro 3 pen. As I try to do it on my surface pro 4 pen tip, it won't budge and I'm afraid to break it by forcefully twisting it.

Has anyone tried this with their surface pro 4 pen?