The system does not recognize the USB stick.

A possible solution could be to format the USB stick and try again.

Once you have received the message on the display, do the following before you try and test:

  • R6 system: take the control unit out and put it in so that it restarts.
  • R7 system: switch the control unit off and on briefly

Format USB stick with Windows:

To format a USB stick, proceed as follows:

  • Select Open Computer / My Computer / This PC via the start button (depending on your Windows version). You will see the connected drives in this window.
  • Click with the right mouse button on the USB stick that you have connected and will use.
  • Then click Format.
  • The window will then open with the title of the drive letter indicating which disk will be formatted.
  • Choose FAT or FAT 32 as the file format if the capacity of the stick exceeds 2 GB.
  • Check the box next to Quick Format
  • Press start.