Both the Original Prusa MINI+ and the SL1 offers a user-friendly feature where the printer automatically displays the project ready for immediate print if:
- The USB flash drive with the project was inserted.
- The project was successfully uploaded from PrusaSlicer or Prusa Connect Local (SL1 only)
It will show you a thumbnail picture and other information regarding your print, like duration and settings.
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The G-code must be sliced by the latest version of PrusaSlicer, so older G-codes might not have this functionality. To fix that, just slice the model in the latest version of PrusaSlicer.