Some early adopters of a new Samsung phone have said the device’s stylus suffers from a design flaw.

The S-Pen stylus for Galaxy Note 5 models can be stored within the body of the phone, but when inserted upside down it appears to snag on an internal mechanism.

Users have reported that when the stylus is then forcibly removed it can damage the S-Pen, the Note 5, or both. Samsung said users should follow the instruction manual.

The stylus should be inserted by the pointed end first and is designed to fit snugly into the Note 5 handset via a spring-loaded mechanism. However, it can also be inserted upside down but can jam when in this position.

Tech news website Android Police has reported that removal of the wrongly inserted stylus caused a detection feature for the S-Pen to stop working permanently. Some Reddit users have also noticed the problem.