If you have encountered this error, your Ultimaker 2+ Connect cannot detect the micro SD card in the electronics. The card could be missing, not fully inserted, or not recognized.
This card is not accessible from the front of the printer. The card is, or should be, in the front electronics module and requires removing the bottom cover. It is not recommended to do so without contacting support first.
To resolve this error message, you can install a 16 GB micro SD card in the electronics module at the front of the printer or reformat the installed card. Please submit a ticket to contact support and receive further instructions.