My Galaxy S3 (running CM11) isn't showing at all under My Computer. The phone is set to MTP.

Under my computer the GT-i9300 shows up under 'Unspecified'. When I go into the device properties it shows up as Google Galaxy Nexus ADB Interface even though I have debugging mode turned off.

When I try to update the device manually to MTP USB Device or Samsung Mobile MTP Device I get an error saying "This device cannot start. (Code 10)"

I've tried un-installing and re-installing the drivers, as well as the registry tweaks mentioned in this XDA thread but I do not have the UpperFilter key present. I've also tried installing Kies and running the connection troubleshooter with no luck. Any suggestions please?

Many thanks

1 Answer 1


It appears that you are using Android Studio (or another IDE). Try turning on developer mode and then connect the device.

  • Thanks, when I run under developer mode it still won't work unfortuantely :(
    – Nick
    Jul 8, 2015 at 12:32
  • @Nick Did you enable USB Debugging? What about verify apps over USB? What happened to me was, I had to wait for an RSA certificate to pop up on my phone to verify that it is connected properly....
    – A P
    Jul 8, 2015 at 14:27

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