Follow these instructions if your PalmSens4 does not give expected measurement results.
Here are some general comments on trouble shooting that are valid for any experiment. We made this list to enable even not very experienced users to find the sources of trouble as soon as possible to keep the frustration level for you and coworkers as low as possible.
This article guides you on how to recover your PalmSens4 firmware if it does not connect properly anymore using a USB cable or Bluetooth. ...
This document shows how to connect the PalmSens4 via Bluetooth to PSTrace (for Windows) or PStouch (for Android)