Device manager shows "unknown device" RRS feed

  • Question

  • Hi

    I have doubt regarding device manger...When it display unknown device...Initially my reader working properly it display all things(device manger-reder name, usbview- all descriptors) correctly. some condition device descriptor unknown device display only in Japanse vista 32bit os, not in english os..why this happen in japanese os only?


    Wednesday, June 19, 2013 7:21 AM

All replies

  • Start by looking at the details tab. Is the hardware a vid/pid of zeros? If so, your device failed to enumerate at the bus level

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    Wednesday, June 19, 2013 2:57 PM