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Showing results for tags 'usb device not recognized'.
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Hello, Device : AMPLIFI 75 OS : Windows 8.1 64 I installed AMPLIFI Utility 1.00. When I turn on the AMPLIFI 75, Windows tells : "USB Device Not Recognized". And AMPLIFI Utility tells : "No AMPLIFI Devices were detected." I checked on "Device Manager" and I see "Unknown USB device" so I choose "Update driver" and I select the one I download for you site. And Windows tells me "The driver is up to date" but it is still Unknown. Can you help me? Thank you. Best Regards.