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  1. Hello No one has any solution or suggestion about this problem ? Regards Sébastien
  2. Hello I would like to share a trouble that I got with my UMO+. From few weeks, I can't connect the UMO+ on my computer through the USB cable (SD card works perfectly). I get "Unknown USB device (Device Descriptor Request Failed)" on Device Manager under USB controllers. This problem appears few days after to install a USB 3.0 hub on my computer and connect the printer through this hub. But now the problem appears on all USB ports My computer runs with Win 8.1 UMO+ works with CURA 15.04 Also I use Arduino 1.6.8 software for an Arduino UNO card I already try to: - Reinstall CURA and Arduino (old and new version) - Try to connect UMO+ with MatterControl 1.5 - Desinstall Device in the Device Manager and restart computer to reinstall the device - Try to install drivers manually - Install CURA on an another computer which use Win XP - Change USB Cable Unfortunately nothing works Have you any suggestion to solve this problem ? Thank you very much Sébastien
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