1. Android Central Question's Avatar
    At first I thought it was a pc issue, updated drivers and reinstalled smart switch but keep getting - usb device not recognised when I connect the phone to laptop, then in device manager I have - unknown ish device(device descriptor request failed)

    I have been through developer options and made sure all my settings are the same as my wife's.
    12-05-2017 06:45 AM
  2. Tim1954's Avatar
    Are you using the correct cable? With mine, if I didn't use the cable that came with the phone, it wouldn't connect to my laptop either....
    12-05-2017 06:54 AM
  3. Gallyhad's Avatar
    Hi thanks Tim, I've tried different cables but to no avail. My wife's phone will connect with any cable.
    12-05-2017 10:45 AM
  4. Dano1200r's Avatar
    What occurs when you connect your phone?
    12-05-2017 11:08 AM
  5. Gallyhad's Avatar
    I get an audio sound and black box with yellow triangle in the bottom right of the screen that says - usb device not recognised. the last usb device you connected to this computer malfunctioned and windows does not recognise it
    12-05-2017 11:13 AM
  6. Dano1200r's Avatar
    Try it in a 2nd computer to try and duplicate the problem.
    12-05-2017 10:05 PM
  7. Gallyhad's Avatar
    I've just tried on another pc and get same.

    when I find the device in device manager and go to device status in the general tab it says - windows has stopped this device because it has reported problem(code 43)
    a request for the usb device descriptor failed.
    12-08-2017 07:32 AM
  8. Dano1200r's Avatar
    Can you go to Settings, Developer Mode, USB Debugging? What does it say?
    12-08-2017 08:16 AM
  9. Gallyhad's Avatar
    debug mode when Usb is connected. this option is turned on.
    12-08-2017 12:50 PM
  10. Dano1200r's Avatar
    debug mode when Usb is connected. this option is turned on.
    Try turning Debugging off. It's been a while since I investigated the Debugging and the other dev options on that screen, but it's worth a try.
    12-08-2017 04:42 PM
  11. Gallyhad's Avatar
    yeah I've tried that a few times, I'm beginning to think is a problem with my phones charger port.
    12-08-2017 05:05 PM

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