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Geeetech A30 no COM selected

http://forum.geeetech.com/viewtopic.php?t=68218

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Geeetech A30 no COM selected

Posted: Mon Mar 11, 2019 1:09 am
by Michi785
Hallo

I made the Firmware update on my 3D-Printer and now i can not conect the printer with my Computer.
The error message is " no COM selected". I don't disconet the USB-cabel.
And the touchscree of the 3D-Printer is black.
Error.PNG
Error.PNG (9.39 KiB) Viewed 2327 times
Please help me.

Re: Geeetech A30 no COM selected

Posted: Tue Mar 12, 2019 11:05 am
by William
You need to check the USB drivers install correct or not(CH340C)
Then you need to insert the sd card to A30 printer.
Restart it and upload the firmware for LCD.
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