A350 - Troubleshooting-Guide
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2. Find the correct portfollowing the steps below.Then launch Luban and try again.
2.1 Connect the machine to a computer via a USB cable, and then turn onthe machine.
2.2Press theWinkey and theRkey at the same time.
2.3 Typedevmgmt.mscin the search box and clickOK.
2.4 ExpandPorts (COM & LPT),and the correct COM port to connect is the one withCH340in its name.
Luban Shows"The machine is not ready"
Whentrying toconnect the machine to the SnapmakerLuban, it shows The machine is not readyor cannot open
the port.
Possible Causes
• You haven't installed the CH340 driver.
• You attempted to connect to the wrong port.
Actions
1. Download and install the CH340 driver from
https://snapmaker.com/product/snapmaker-2/downloads.