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USB is not connected (with COM port)

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2022-12-20

USB is not connected (with COM port)
C

    • Henry

      2022-12-21
      Cause analysis:
① Whether the "Device Port" in the lower right corner of the software is correctly selected (USB and network).
② The first time you installed the software, you did not install the USB drive, and then you installed the operating software.
③ If the port does not correspond, change the port again (for example, COM5 changes to COM3).
④ If the control motherboard hardware does not have U43 (LJ245A), it cannot be upgraded to a special version.
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        • Henry

          : ⑤ If there is U43 (LJ245A) upgrade for the control motherboard hardware, it cannot be upgraded before 5.0.21. Solution: Reburn the program if the version is wrong.

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