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Do you keep getting the “Connection failed” message when try to connect your Select Mini V2 via USB even though the printer is detected by S3D.
"Attempting connection at \\.\COM5... Testing plaintext communication protocol... Testing binary communication protocol... Testing alternate communication protocols... Connection failed."
This may help with that. Simplify3D needs a small change made to the “Flow Control” setting located in the “Advanced” section of the “Communications” tab which can be found in the “Firmware Configuration” settings. The “Flow Control” drop-down has three options:
Choosing either the hardware or software options seems to work. The only difference made in the S3D firmware profile is to the “Flow Control” setting which is set to “Hardware Flow Control (RTS/CTS)”.
Simplify3D Firmware Profile for MP Mini 3D Printers
This firmware profile will allow S3D to connect to the MP Select Mini V2 and MP Mini Delta.
(MP Select Mini V1 connects with or without this firmware.)
This will temporarily connect but then the printer becomes unresponsive.