Last year we heard there was a problem with the S-Pen on the Samsung Galaxy Note 5, if someone inserted the pen into the handset upside down, it would get stuck and could not be removed from the handset without damaging it.
Now it looks like Samsung has fixed the issue on newer versions of their Galaxy Note 5 smartphone, the company appears to have changed the design of the device inside to fix the issue.
The guys from Android Central have spoken to Samsung about the previous problem on the device and Samsung has responded saying that the issue is now fixed, you can see the statement below.
“Samsung can confirm that the Note5 internal S Pen mechanism has been changed to avoid the issue caused by inserting the S Pen incorrectly,”
Of course this does not apply to all of the Samsung Galaxy Note 5 handsets, only the newer ones and there is no way to tell which one your device is, so it might be a good idea to not insert the S-Pen into the handset the wrong way.
Source Android Central