A350 - Troubleshooting-Guide

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2. Find the correct portfollowing the steps below.Then launch Luban and try again.
2.1 Connect the machine to a computer via a USB cable, and then turn onthe machine.
2.2Press theWinkey and theRkey at the same time.
2.3 Typedevmgmt.mscin the search box and clickOK.
2.4 ExpandPorts (COM & LPT),and the correct COM port to connect is the one withCH340in its name.
Luban Shows"The machine is not ready"
Whentrying toconnect the machine to the SnapmakerLuban, it shows The machine is not readyor 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.