Snapmaker Luban only returns “ok” after inputting commands in the Console.
Pronterface: https://www.pronterface.com/
Lightburn: https://lightburnsoftware.com/
After following the troubleshooting steps, if you find it difficult to resolve your issue, kindly submit a support ticket through https://snapmaker.formcrafts.com/support-ticket and share your troubleshooting results with some pictures/videos.
Our dedicated support team will be more than willing to assist you in resolving the issue.