Students who have older ResponseCard XR clickers or some versions of the NXT clickers may need to update their firmware (the older version of the ResponseCard XR clicker is blue).
After pressing the Menu button the screen should read
"Leave presentation mode? (Y/N)". If you see any other text you may
need to update your firmware. Please contact UBclicks
If the firmware is not up-to-date intermittent problems may occur.
Some clickers with outdated firmware may not work when answering numeric questions.
If your NXT clicker states "No link up to channel" when attempting to answer a clicker question, the firmware is out of date.
To check your firmware version: